952 results on '"L. Clements"'
Search Results
102. 'When information is not enough': A model for understanding BRCA -positive previvors’ information needs regarding hereditary breast and ovarian cancer risk
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Rachel Koruo, Courtney L. Scherr, Jennifer Martinez, Marleah Dean, Meredith L. Clements, and Amy A. Ross
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Adult ,medicine.medical_specialty ,Decision Making ,Genes, BRCA2 ,Genes, BRCA1 ,Information needs ,Grounded theory ,Interviews as Topic ,03 medical and health sciences ,0302 clinical medicine ,Patient Education as Topic ,Adaptation, Psychological ,medicine ,Humans ,Genetic Predisposition to Disease ,Genetic Testing ,030212 general & internal medicine ,Qualitative Research ,Aged ,Genetic testing ,medicine.diagnostic_test ,business.industry ,Specific-information ,Cancer ,General Medicine ,Middle Aged ,medicine.disease ,030220 oncology & carcinogenesis ,Family medicine ,Needs assessment ,Female ,business ,Ovarian cancer ,Attitude to Health ,Social psychology ,Needs Assessment ,Qualitative research - Abstract
Objective To investigate BRCA -positive, unaffected patients' – referred to as previvors – information needs after testing positive for a deleterious BRCA genetic mutation. Methods 25 qualitative interviews were conducted with previvors. Data were analyzed using the constant comparison method of grounded theory. Results Analysis revealed a theoretical model of previvors' information needs related to the stage of their health journey. Specifically, a four-stage model was developed based on the data: (1) pre-testing information needs, (2) post-testing information needs, (3) pre-management information needs, and (4) post-management information needs. Two recurring dimensions of desired knowledge also emerged within the stages—personal/social knowledge and medical knowledge. Conclusions While previvors may be genetically predisposed to develop cancer, they have not been diagnosed with cancer, and therefore have different information needs than cancer patients and cancer survivors. Practice Implications This model can serve as a framework for assisting healthcare providers in meeting the specific information needs of cancer previvors. more...
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- 2017
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103. HERSCHEL OBSERVATIONS IN THE AKARI NEP FIELD: INITIAL SOURCE COUNTS
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Glenn J. White, David L. Clements, Chris Pearson, Ryan Cheale, R. Hopwood, Denis Burgarella, Stephen Serjeant, Ivan Valtchanov, Hideo Matsuhara, and Bruno Altieri
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Physics ,Astronomy ,General Medicine ,Astrophysics ,Source counts ,Galaxy ,Data reduction - Abstract
The preliminary data reduction, analysis and first results from the Herschel survey of the AKARI NEP field are presented. Herschel SPIRE observations of the NEP-Wide region and PACS observations of the NEP-Deep region have yielded galaxy catalogues of 4000 and 900 sources respectively down to flux density levels of approximately 15 mJy at 100-250 microns. Source counts produced from these catalogues reach cosmologically significant depths tracing the evolutionary upturn and turnover in the source counts. The source counts are in agreement with other large area surveys carried out with Herschel bridging the gap between the shallow and deep Herschel surveys. more...
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- 2017
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104. Feasibility of Coronary Computed Tomography Angiography Assessment of Explanted Donor Hearts
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B. Agrawal, L. Clements, S.R. Large, Pedro Catarino, Simon Messer, K. Tweed, and J. Butler
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Pulmonary and Respiratory Medicine ,Aortic valve ,Transplantation ,medicine.medical_specialty ,Aorta ,business.industry ,Coronary computed tomography angiography ,medicine.disease ,Circulatory death ,Coronary arteries ,Stenosis ,medicine.anatomical_structure ,Internal medicine ,medicine.artery ,medicine ,Cardiology ,Retrograde perfusion ,Surgery ,cardiovascular diseases ,Cardiology and Cardiovascular Medicine ,business ,Perfusion - Abstract
Purpose In the United Kingdom, coronary angiography is rarely performed of donation after brain death donors. Currently up to 30% of potential donor hearts are not utilised due to potential but unconfirmed coronary disease. For Donation After Circulatory death donors, coronary angiography is prohibited, as are all antemortem interventions. We believe that ex situ coronary CT angiography (CTA) will be logistically more feasible than in situ donor coronary angiography or ex situ coronary angiography allowing greater yield of donor hearts. Methods Organ retrieval is performed by direct procurement and perfusion. The aorta of the donor heart is cannulated to allow retrograde perfusion of the heart via the coronary arteries in the setting of a competent aortic valve. Electrocardiographic (ECG) monitoring is performed. The donor heart is paced epicardially to a rate between 70-90 beats per minute as required. Coronary CTA is performed after direct administration of contrast media (iomeron 350) and nitroglycerin administration. Coronary CTA post processing facilitated segmental analysis of all of the coronary arteries with detailed assessment of atherosclerotic plaque burden, plaque morphology and luminal stenosis. Coronary CTA findings are directly compared to histological correlation of plaque burden. Results Two human cardiac allografts (donation after brain death) were assessed using coronary CTA during ex-vivo perfusion on a local centre ex-vivo perfusion device. Images were reconstructed using Siemens SyngoVia software. In both patients eccentric atherosclerotic plaque burden was quantified using conventional techniques and luminal calibre assessed. Conclusion Assessment of ex-vivo coronary arteries is feasible using coronary CTA during ex-vivo perfusion of donor hearts. Atherosclerotic plaque and luminal stenosis of ex-vivo coronary arteries can be diagnosed using coronary CTA. more...
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- 2020
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105. Have we seen all the galaxies that comprise the cosmic infrared background at 250 μm ≤ λ ≤ 500 μm?
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Peter Hurley, Douglas Scott, Rob Ivison, Matthieu Béthermin, Michael Zemcov, S. Duivenvoorden, R. Shirley, Lingyu Wang, Duncan Farrah, G. de Zotti, David L. Clements, S. J. Oliver, Andreas Efstathiou, Guilaine Lagache, Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Astronomy, Science and Technology Facilities Council (STFC), Imperial College Trust, and Science and Technology Facilities Council more...
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Population ,Astrophysics ,Large Synoptic Survey Telescope ,Astronomy & Astrophysics ,DEG(2) ,01 natural sciences ,STAR-FORMATION ,infrared: galaxies ,Cosmic infrared background ,0201 Astronomical and Space Sciences ,0103 physical sciences ,education ,010303 astronomy & astrophysics ,QC ,Luminous infrared galaxy ,Physics ,LEGACY SURVEY ,education.field_of_study ,Science & Technology ,COSMIC cancer database ,[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] ,010308 nuclear & particles physics ,Star formation ,Astronomy and Astrophysics ,Galaxy ,EVOLUTION ,Wavelength ,SPITZER ,Space and Planetary Science ,[SDU]Sciences of the Universe [physics] ,Physical Sciences ,HELP ,submillimetre: galaxies - Abstract
International audience; The cosmic infrared background (CIB) provides a fundamental observational constraint on the star formation history of galaxies over cosmic history. We estimate the contribution to the CIB from catalogued galaxies in the COSMOS field by using a novel map fitting technique on the Herschel SPIRE maps. Prior galaxy positions are obtained using detections over a large range in wavelengths in the Ks-3 GHz range. Our method simultaneously fits the galaxies, the system foreground, and the leakage of flux from galaxies located in masked areas and corrects for an 'overfitting' effect not previously accounted for in stacking methods. We explore the contribution to the CIB as a function of galaxy survey wavelength and depth. We find high contributions to the CIB with the deep r (mAB ≤ 26.5), Ks (mAB ≤ 24.0), and 3.6 μm (mAB ≤ 25.5) catalogues. We combine these three deep catalogues and find a total CIB contributions of 10.5 ± 1.6, 6.7 ± 1.5, and 3.1 ± 0.7 nWm-2 sr-1 at 250, 350, and 500 μm, respectively. Our CIB estimates are consistent with recent phenomenological models, prior based SPIRE number counts and with (though more precise than) the diffuse total measured by FIRAS. Our results raise the interesting prospect that the CIB contribution at λ ≤ 500 μm from known galaxies has converged. Future large-area surveys like those with the Large Synoptic Survey Telescope are therefore likely to resolve a substantial fraction of the population responsible for the CIB at 250 μm ≤ λ ≤ 500 μm. more...
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- 2020
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106. Tracing the evolution of dust-obscured activity using sub-millimetre galaxy populations from STUDIES and AS2UDS
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A. M. Swinbank, R. Shirley, U. Dudzevičiūtė, Chen-Fatt Lim, Hyunjin Shim, Wei-Hao Wang, Chian-Chou Chen, Chien-Hsiu Lee, Scott Chapman, M. P. Koprowski, Yoshiki Toba, Ho Seong Hwang, Luis C. Ho, Ian Smail, Helmut Dannerbauer, James Simpson, David L. Clements, Douglas Scott, and Yiping Ao more...
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Population ,FOS: Physical sciences ,galaxies: starburst ,Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Noon ,01 natural sciences ,infrared: galaxies ,0103 physical sciences ,education ,010303 astronomy & astrophysics ,Astrophysics::Galaxy Astrophysics ,Cosmic dust ,Luminous infrared galaxy ,Physics ,education.field_of_study ,COSMIC cancer database ,010308 nuclear & particles physics ,Astronomy and Astrophysics ,Astrophysics - Astrophysics of Galaxies ,Galaxy ,Redshift ,Space and Planetary Science ,Astrophysics of Galaxies (astro-ph.GA) ,Millimeter ,Astrophysics::Earth and Planetary Astrophysics ,galaxies: evolution - Abstract
We analyse the physical properties of 121 SNR $\geq$ 5 sub-millimetre galaxies (SMGs) from the STUDIES 450-$\mu$m survey. We model their UV-to-radio spectral energy distributions using MAGPHYS+photo-$z$ and compare the results to similar modelling of 850-$\mu$m-selected SMG sample from AS2UDS, to understand the fundamental physical differences between the two populations at the observed depths. The redshift distribution of the 450-$\mu$m sample has a median of $z$ = 1.85 $\pm$ 0.12 and can be described by strong evolution of the far-infrared luminosity function. The fainter 450-$\mu$m sample has $\sim$14 times higher space density than the brighter 850-$\mu$m sample at $z$ $\lesssim$2, and a comparable space density at $z$ = 2-3, before rapidly declining, suggesting LIRGs are the main obscured population at $z$ $\sim$ 1-2, while ULIRGs dominate at higher redshifts. We construct rest-frame $\sim$ 180-$\mu$m-selected and dust-mass-matched samples at $z$ = 1-2 and $z$ = 3-4 from the 450-$\mu$m and 850-$\mu$m samples, respectively, to probe the evolution of a uniform sample of galaxies spanning the cosmic noon era. Using far-infrared luminosity, dust masses and an optically-thick dust model, we suggest that higher-redshift sources have higher dust densities due to inferred dust continuum sizes which are roughly half of those for the lower-redshift population at a given dust mass, leading to higher dust attenuation. We track the evolution in the cosmic dust mass density and suggest that the dust content of galaxies is governed by a combination of both the variation of gas content and dust destruction timescale., Comment: 20 pages, 7 figures, MNRAS accepted more...
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- 2020
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107. Experimental demonstration of using wet-mate connector in offshore long-distance Raman amplified optical links
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Bernard Shum-Tim, Kris Sanapi, Rolf Boe, Steinar Bjttrnstad, W. R. L. Clements, Luigi Carlomusto, and Soren Michaelsen
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Optical fiber ,Materials science ,business.industry ,Attenuation ,law.invention ,Connection (mathematics) ,Power (physics) ,Cable gland ,symbols.namesake ,law ,symbols ,Optoelectronics ,Submarine pipeline ,business ,Raman spectroscopy ,Raman pump - Abstract
Deploying fibre cables to offshore installations may desire a pluggable construction for sub-sea use. Sub-sea connection of fibre cables, carrying high power Raman pump power, using a wet-mate connector is demonstrated for the first time. more...
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- 2020
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108. Planck far-infrared detection of hyper suprime-cam protoclusters at z ∼ 4 : hidden AGN and star formation activity
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Nobunari Kashikawa, Roderik Overzier, Tai An Cheng, Tomotsugu Goto, Yuichi Matsuda, Jun Toshikawa, Yoshiaki Ono, Yi-Kuan Chiang, Kei Ito, Hisakazu Uchiyama, David M. Alexander, Tadayuki Kodama, Mariko Kubo, and David L. Clements more...
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Active galactic nucleus ,010504 meteorology & atmospheric sciences ,Population ,FOS: Physical sciences ,Astrophysics ,Astronomy & Astrophysics ,01 natural sciences ,Luminosity ,PROTO-CLUSTER ,X-RAY-EMISSION ,Far infrared ,0103 physical sciences ,0201 Astronomical and Space Sciences ,Galaxy formation and evolution ,SIMPLE-MODEL ,education ,010303 astronomy & astrophysics ,0105 earth and related environmental sciences ,Physics ,0306 Physical Chemistry (incl. Structural) ,education.field_of_study ,HERSCHEL ,Science & Technology ,FORMING GALAXIES ,SUBMILLIMETER GALAXIES ,Star formation ,Astronomy and Astrophysics ,LY-ALPHA-EMITTERS ,Astrophysics - Astrophysics of Galaxies ,Galaxy ,LYMAN-BREAK GALAXIES ,Space and Planetary Science ,LUMINOSITY FUNCTION ,Astrophysics of Galaxies (astro-ph.GA) ,Physical Sciences ,0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics ,Spectral energy distribution ,HIGH-REDSHIFT - Abstract
We perform a stacking analysis of {\it Planck}, {\it AKARI}, Infrared Astronomical Satellite ($IRAS$), Wide-field Infrared Survey Eplorer ($WISE$), and {\it Herschel} images of the largest number of (candidate) protoclusters at $z\sim3.8$ selected from the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP). Stacking the images of the $179$ candidate protoclusters, the combined infrared (IR) emission of the protocluster galaxies in the observed $12-850~\mu$m wavelength range is successfully detected with $>5\sigma$ significance (at $Planck$). This is the first time that the average IR spectral energy distribution (SED) of a protocluster has been constrained at $z\sim4$. The observed IR SEDs of the protoclusters exhibit significant excess emission in the mid-IR compared to that expected from typical star-forming galaxies (SFGs). They are reproduced well using SED models of intense starburst galaxies with warm/hot dust heated by young stars, or by a population of active galactic nuclei (AGN)/SFG composites. For the pure star-forming model, a total IR (from 8 to 1000 $\mu$m) luminosity of $19.3_{-4.2}^{+0.6}\times10^{13}~L_{\odot}$ and a star formation rate (SFR) of $16.3_{-7.8}^{+1.0}\times10^3~M_{\odot}$ yr$^{-1}$ are found whereas for the AGN/SFG composite model, $5.1_{-2.5}^{+2.5}\times10^{13}~L_{\odot}$ and $2.1^{+6.3}_{-1.7}\times10^3~M_{\odot}$ yr$^{-1}$ are found. Uncertainty remaining in the total SFRs; however, the IR luminosities of the most massive protoclusters are likely to continue increasing up to $z\sim4$. Meanwhile, no significant IR flux excess is observed around optically selected QSOs at similar redshifts, which confirms previous results. Our results suggest that the $z\sim4$ protoclusters trace dense, intensely star-forming environments that may also host obscured AGNs missed by the selection in the optical., Comment: 26 pages, 12 figures, Accepted for publication in ApJ more...
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- 2019
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109. A SCUBA-2 Selected Herschel-SPIRE Dropout and the Nature of this Population
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J. Greenslade, Helmut Dannerbauer, M. Velázquez, Paola Andreani, Michał J. Michałowski, Ivan Oteo, I. Perez Fournon, Itziar Aretxaga, Glen Petitpas, Stephen Anthony Eales, David H. Hughes, Duncan Farrah, C. Yang, Asantha Cooray, David L. Clements, M. S. Yun, N. Ponthieu, Loretta Dunne, Hugo Messias, E. Aguilar, T. Cheng, and David Sánchez-Arguelles more...
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Physics ,education.field_of_study ,010308 nuclear & particles physics ,Population ,FOS: Physical sciences ,Astronomy and Astrophysics ,Astrophysics ,01 natural sciences ,Astrophysics - Astrophysics of Galaxies ,Spectral line ,Redshift ,Galaxy ,Space and Planetary Science ,Astrophysics of Galaxies (astro-ph.GA) ,0103 physical sciences ,14. Life underwater ,education ,Flux density distribution ,010303 astronomy & astrophysics - Abstract
Dusty star-forming galaxies (DSFGs) detected at $z > 4$ provide important examples of the first generations of massive galaxies. However, few examples with spectroscopic confirmation are currently known, with Hershel struggling to detect significant numbers of $z > 6$ DSFGs. NGP6_D1 is a bright 850 $��m$ source (12.3 $\pm$ 2.5 mJy) with no counterparts at shorter wavelengths (a SPIRE dropout). Interferometric observations confirm it is a single source, with no evidence for any optical or NIR emission, or nearby likely foreground lensing sources. No $>3��$ detected lines are seen in both LMT RSR and IRAM 30m EMIR spectra of NGP6_D1 across 32 $GHz$ of bandwidth despite reaching detection limits of $\sim 1 mJy/500 km~s^{-1}$, so the redshift remains unknown. Template fitting suggests that NGP6_D1 is most likely between $z = 5.8$ and 8.3. SED analysis finds that NGP6_D1 is a ULIRG, with a dust mass $\sim 10^8$ - $10^9$ $M_{\odot}$ and a SFR of $\sim$ 500 $M_{\odot}~yr^{-1}$. We place upper limits on the gas mass of NGP6_D1 of $M_{H2}$ $ < (1.1~\pm~3.5) \times 10^{11}$ $M_{\odot}$, consistent with a gas-to-dust ratio of $\sim$ 100 - 1000. We discuss the nature of NGP6_D1 in the context of the broader submm population, and find that comparable SPIRE dropouts account for $\sim$ 20% of all SCUBA-2 detected sources, but with a similar flux density distribution to the general population., Accepoted for publication in MNRAS more...
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- 2019
110. Spitzer Catalog of Herschel-selected ultrared dusty star-forming galaxies
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Dominik A. Riechers, Elisabete da Cunha, Steve Maddox, Alain Omont, Ismael Perez-Fournon, Arianna Brown, Rob Ivison, J. Greenslade, Stephen Anthony Eales, Seb Oliver, Simon Dye, Julie Wardlow, Elisabetta Valiante, Douglas Scott, Asantha Cooray, Andrew Battisti, Jingzhe Ma, Stephen Serjeant, Loretta Dunne, David L. Clements, Pierre Cox, Mattia Negrello, N. Ghotbi, Hooshang Nayyeri, S. Duivenvoorden, Matthew L. N. Ashby, Ivan Oteo, Department of Physics and Astronomy [Irvine], University of California [Irvine] (UCI), University of California-University of California, Royal Observatory Edinburgh (ROE), University of Edinburgh, Astronomy Centre, University of Sussex, Department of Astronomy, University of Massachusetts [Amherst] (UMass Amherst), University of Massachusetts System (UMASS), Cornell University [New York], School of Physics and Astronomy [Cardiff], Cardiff University, Institut d'Astrophysique de Paris (IAP), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Department of Physics and Astronomy [Vancouver], University of British Columbia (UBC), School of Physics and Astronomy [Nottingham], and University of Nottingham, UK (UON) more...
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Stellar mass ,DEEP FIELD ,INFRARED-EMISSION ,Population ,Extinction (astronomy) ,FOS: Physical sciences ,Astrophysics ,Astronomy & Astrophysics ,01 natural sciences ,LYMAN BREAK GALAXIES ,Luminosity ,EXTRAGALACTIC SURVEY ,BOLOMETER CAMERA ,0103 physical sciences ,0201 Astronomical and Space Sciences ,SIMPLE-MODEL ,education ,NUMBER COUNTS ,010303 astronomy & astrophysics ,ComputingMilieux_MISCELLANEOUS ,Physics ,0306 Physical Chemistry (incl. Structural) ,education.field_of_study ,Science & Technology ,SUBMILLIMETER GALAXIES ,[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] ,010308 nuclear & particles physics ,Star formation ,Astronomy and Astrophysics ,MASSIVE GALAXIES ,Astrophysics - Astrophysics of Galaxies ,Redshift ,Galaxy ,Space and Planetary Science ,[SDU]Sciences of the Universe [physics] ,Astrophysics of Galaxies (astro-ph.GA) ,Physical Sciences ,0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics ,REDSHIFT DISTRIBUTION ,Spectral energy distribution - Abstract
The largest Herschel extragalactic surveys, H-ATLAS and HerMES, have selected a sample of "ultrared" dusty, star-forming galaxies (DSFGs) with rising SPIRE flux densities ($S_{500} > S_{350} > S_{250}$; so-called "500 $��$m-risers") as an efficient way for identifying DSFGs at higher redshift ($z > 4$). In this paper, we present a large Spitzer follow-up program of 300 Herschel ultrared DSFGs. We have obtained high-resolution ALMA, NOEMA, and SMA data for 63 of them, which allow us to securely identify the Spitzer/IRAC counterparts and classify them as gravitationally lensed or unlensed. Within the 63 ultrared sources with high-resolution data, $\sim$65% appear to be unlensed, and $\sim$27% are resolved into multiple components. We focus on analyzing the unlensed sample by directly performing multi-wavelength spectral energy distribution (SED) modeling to derive their physical properties and compare with the more numerous $z \sim 2$ DSFG population. The ultrared sample has a median redshift of 3.3, stellar mass of 3.7 $\times$ 10$^{11}$ $M_{\odot}$, star formation rate (SFR) of 730 $M_{\odot}$yr$^{-1}$, total dust luminosity of 9.0 $\times$ 10$^{12}$ $L_{\odot}$, dust mass of 2.8 $\times$ 10$^9$ $M_{\odot}$, and V-band extinction of 4.0, which are all higher than those of the ALESS DSFGs. Based on the space density, SFR density, and stellar mass density estimates, we conclude that our ultrared sample cannot account for the majority of the star-forming progenitors of the massive, quiescent galaxies found in infrared surveys. Our sample contains the rarer, intrinsically most dusty, luminous and massive galaxies in the early universe that will help us understand the physical drivers of extreme star formation., 33 pages, 10 figures; accepted for publication in ApJS. The catalog tables will be available on ApJS and VizieR; authors' version is available now upon request more...
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- 2019
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111. SILVERRUSH. VIII. Spectroscopic Identifications of Early Large-scale Structures with Protoclusters over 200 Mpc at z ∼ 6–7: Strong Associations of Dusty Star-forming Galaxies
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Roderik Overzier, Nobunari Kashikawa, Crystal L. Martin, Takuya Hashimoto, Ian Smail, Jun Toshikawa, Lihwai Lin, Yiping Ao, Masato Onodera, Tohru Nagao, Sune Toft, Yuichi Harikane, Kotaro Kohno, Akio K. Inoue, Tomotsugu Goto, Myungshin Im, Minju Lee, Murilo Marinello, David L. Clements, Yen-Ting Lin, Toshihiro Kawaguchi, Andreas L. Faisst, D. Donevski, Masami Ouchi, Bunyo Hatsukade, Scott Chapman, Yoshiki Matsuoka, Yoshiaki Ono, Chien-Hsiu Lee, Hideki Umehata, Ryo Higuchi, Wei-Hao Wang, Takatoshi Shibuya, Yipeng Jing, Seiji Fujimoto, Laboratoire d'Astrophysique de Marseille (LAM), and Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS) more...
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010504 meteorology & atmospheric sciences ,Astrophysics ,Star (graph theory) ,Physical Chemistry ,01 natural sciences ,Atomic ,Luminosity ,LY-ALPHA EMITTERS ,Particle and Plasma Physics ,galaxies: high-redshift ,010303 astronomy & astrophysics ,Physics ,0306 Physical Chemistry (incl. Structural) ,ENVIRONMENTAL DEPENDENCE ,LYMAN-BREAK GALAXIES ,Physical Sciences ,0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics ,DENSITY RELATION ,Halo ,galaxies: evolution ,high-redshift [galaxies] ,Astronomical and Space Sciences ,Physical Chemistry (incl. Structural) ,EMITTING GALAXIES ,formation [galaxies] ,FOS: Physical sciences ,Scale (descriptive set theory) ,RADIO GALAXY ,Astronomy & Astrophysics ,PROTO-CLUSTER ,0103 physical sciences ,0201 Astronomical and Space Sciences ,Galaxy formation and evolution ,galaxies: formation ,Nuclear ,evolution [galaxies] ,0105 earth and related environmental sciences ,Science & Technology ,NEBULAR EMISSION ,Molecular ,Astronomy and Astrophysics ,DEEP SURVEY ,Astrophysics - Astrophysics of Galaxies ,Galaxy ,Redshift ,Stars ,[SDU]Sciences of the Universe [physics] ,Space and Planetary Science ,Astrophysics of Galaxies (astro-ph.GA) ,HIGH-REDSHIFT - Abstract
We have obtained three-dimensional maps of the universe in $\sim200\times200\times80$ comoving Mpc$^3$ (cMpc$^3$) volumes each at $z=5.7$ and $6.6$ based on a spectroscopic sample of 179 galaxies that achieves $\gtrsim80$\% completeness down to the Ly$\alpha$ luminosity of $\log(L_{\rm Ly\alpha}/[\mathrm{erg\ s^{-1}}])=43.0$, based on our Keck and Gemini observations and the literature. The maps reveal filamentary large-scale structures and two remarkable overdensities made out of at least 44 and 12 galaxies at $z=5.692$ (z57OD) and $z=6.585$ (z66OD), respectively, making z66OD the most distant overdensity spectroscopically confirmed to date with $>10$ spectroscopically confirmed galaxies. We compare spatial distributions of submillimeter galaxies at $z\simeq 4-6$ with our $z=5.7$ galaxies forming the large-scale structures, and detect a $99.97\%$ signal of cross correlation, indicative of a clear coincidence of dusty star-forming galaxy and dust unobscured galaxy formation at this early epoch. The galaxies in z57OD and z66OD are actively forming stars with star formation rates (SFRs) $\gtrsim5$ times higher than the main sequence, and particularly the SFR density in z57OD is 10 times higher than the cosmic average at the redshift (a.k.a. the Madau-Lilly plot). Comparisons with numerical simulations suggest that z57OD and z66OD are protoclusters that are progenitors of the present-day clusters with halo masses of $\sim10^{14}\ \mathrm{M_\odot}$., Comment: 17 pages, 11 figures, Accepted for Publication in ApJ more...
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- 2019
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112. Amphibian responses to livestock use of wetlands: new empirical data and a global review
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Stephanie L. Clements, Caitlin C. Mothes, Hunter J. Howell, Shantel V. L. Catania, Betsie B. Rothermel, and Christopher A. Searcy
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0106 biological sciences ,Conservation of Natural Resources ,Livestock ,Population ,Wildlife ,Biodiversity ,010603 evolutionary biology ,01 natural sciences ,Amphibians ,Animals ,Humans ,education ,Ecosystem ,education.field_of_study ,Ecology ,Land use ,business.industry ,010604 marine biology & hydrobiology ,Geography ,Habitat ,Wetlands ,Florida ,Cattle ,Female ,Rangeland ,business ,Global biodiversity - Abstract
Pastureland currently occupies 26% of Earth's ice-free land surface. As the global human population continues to increase and developing countries consume more protein-rich diets, the amount of land devoted to livestock grazing will only continue to rise. To mitigate the loss of global biodiversity as a consequence of the ever-expanding amount of land converted from native habitat into pastureland for livestock grazing, an understanding of how livestock impact wildlife is critical. While previous reviews have examined the impact of livestock on a wide variety of taxa, there have been no reviews examining how global livestock grazing affects amphibians. We conducted both an empirical study in south-central Florida examining the impact of cattle on amphibian communities and a quantitative literature review of similar studies on five continents. Our empirical study analyzed amphibian community responses to cattle as both a binary (presence/absence) variable, and as a continuous variable based on cow pie density. Across all analyses, we were unable to find any evidence that cattle affected the amphibian community at our study site. The literature review returned 46 papers that met our criteria for inclusion. Of these studies, 15 found positive effects of livestock on amphibians, 21 found neutral/mixed effects, and 10 found negative effects. Our quantitative analysis of these data indicates that amphibian species that historically occurred in closed-canopy habitats are generally negatively affected by livestock presence. In contrast, open-canopy amphibians are likely to experience positive effects from the presence of livestock, and these positive effects are most likely to occur in locations with cooler climates and/or greater precipitation seasonality. Collectively, our empirical work and literature review demonstrate that under the correct conditions well-managed rangelands are able to support diverse assemblages of amphibians. These rangeland ecosystems may play a critical role in protecting future amphibian biodiversity by serving as an "off-reserve" system to supplement the biodiversity conserved within traditional protected areas. more...
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- 2019
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113. JINGLE - V. Dust properties of nearby galaxies derived from hierarchical Bayesian SED fitting
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Gioacchino Accurso, Jong Chul Lee, Ting Xiao, Lihwai Lin, Isabella Lamperti, Ho Seong Hwang, Michał J. Michałowski, Matthew Smith, Amélie Saintonge, Elias Brinks, Toby Brown, Ilse De Looze, Christine D. Wilson, Thomas G. Williams, David L. Clements, Christopher J. R. Clark, David Henry william Glass, C. Yang, Martin Bureau, Mark Sargent, and Stephen Anthony Eales more...
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Stellar mass ,INFRARED-EMISSION ,Extinction (astronomy) ,FOS: Physical sciences ,F500 ,Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astronomy & Astrophysics ,01 natural sciences ,0103 physical sciences ,0201 Astronomical and Space Sciences ,Emissivity ,Astrophysics::Solar and Stellar Astrophysics ,Black-body radiation ,ISM [submillimetre] ,COLD DUST ,MAIN-SEQUENCE ,010303 astronomy & astrophysics ,evolution [galaxies] ,Astrophysics::Galaxy Astrophysics ,QB ,Cosmic dust ,Physics ,Science & Technology ,ISM [galaxies] ,extinction ,010308 nuclear & particles physics ,Star formation ,JCMT LEGACY SURVEY ,Astronomy and Astrophysics ,HERSCHEL-ATLAS ,Astrophysics - Astrophysics of Galaxies ,Galaxy ,submillimetre: ISM ,MODEL ,SPECTRAL ENERGY-DISTRIBUTION ,Physics and Astronomy ,TEMPERATURE-DEPENDENCE ,Space and Planetary Science ,GAS ,Astrophysics of Galaxies (astro-ph.GA) ,Physical Sciences ,Spectral energy distribution ,dust ,Astrophysics::Earth and Planetary Astrophysics ,dust, extinction ,galaxies: evolution ,galaxies: ISM ,INTERSTELLAR DUST - Abstract
We study the dust properties of 192 nearby galaxies from the JINGLE survey using photometric data in the 22-850micron range. We derive the total dust mass, temperature T and emissivity index beta of the galaxies through the fitting of their spectral energy distribution (SED) using a single modified black-body model (SMBB). We apply a hierarchical Bayesian approach that reduces the known degeneracy between T and beta. Applying the hierarchical approach, the strength of the T-beta anti-correlation is reduced from a Pearson correlation coefficient R=-0.79 to R=-0.52. For the JINGLE galaxies we measure dust temperatures in the range 17-30 K and dust emissivity indices beta in the range 0.6-2.2. We compare the SMBB model with the broken emissivity modified black-body (BMBB) and the two modified black-bodies (TMBB) models. The results derived with the SMBB and TMBB are in good agreement, thus applying the SMBB, which comes with fewer free parameters, does not penalize the measurement of the cold dust properties in the JINGLE sample. We investigate the relation between T and beta and other global galaxy properties in the JINGLE and Herschel Reference Survey (HRS) sample. We find that beta correlates with the stellar mass surface density (R=0.62) and anti-correlates with the HI mass fraction (M(HI)/M*, R=-0.65), whereas the dust temperature correlates strongly with the SFR normalized by the dust mass (R=0.73). These relations can be used to estimate T and beta in galaxies with insufficient photometric data available to measure them directly through SED fitting., MNRAS in press, 31 pages more...
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- 2019
114. Previving: How Unaffected Women with a
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Hannah, Getachew-Smith, Amy A, Ross, Courtney L, Scherr, Marleah, Dean, and Meredith L, Clements
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BRCA2 Protein ,Ovarian Neoplasms ,Affect ,BRCA1 Protein ,Communication ,Mutation ,Humans ,Breast Neoplasms ,Female ,Genetic Predisposition to Disease ,Genetic Testing - Abstract
Receiving a positive result for a
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- 2019
115. JINGLE, a JCMT legacy survey of dust and gas for galaxy evolution studies: II. SCUBA-2 850 μm data reduction and dust flux density catalogues
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Jong Chul Lee, Connor M. A. Smith, C. Yang, Amélie Saintonge, Ilse De Looze, Ting Xiao, Walter Kieran Gear, Peter Scicluna, Francisca Kemper, Christopher J. R. Clark, Martin Bureau, Thomas G. Williams, Ho Seong Hwang, Lihwai Lin, Haley Louise Gomez, David L. Clements, Isabella Lamperti, Dániel Cs Molnár, Elias Brinks, Gioacchino Accurso, Ming Zhu, Yu Gao, Thavisha E. Dharmawardena, J. Greenslade, Lapo Fanciullo, Cheng Li, Lijie Liu, Christine D. Wilson, S. Urquhart, Mark Sargent, Angus Mok, Phillip J. Cigan, Hsi-An Pan, Yang Gao, Eun Jung Chung, and Matthew Smith more...
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galaxies: spiral ,Stellar mass ,Infrared ,Metallicity ,Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astronomy & Astrophysics ,01 natural sciences ,STAR-FORMATION ,0103 physical sciences ,0201 Astronomical and Space Sciences ,Galaxy formation and evolution ,NEARBY GALAXIES ,ISM [submillimetre] ,COLD DUST ,010303 astronomy & astrophysics ,Astrophysics::Galaxy Astrophysics ,QB ,Physics ,Science & Technology ,ISM [galaxies] ,010308 nuclear & particles physics ,Star formation ,Astronomy and Astrophysics ,MASSIVE GALAXIES ,HERSCHEL-ATLAS ,Astrophysics - Astrophysics of Galaxies ,Galaxy ,MOLECULAR GAS ,submillimetre: ISM ,galaxies: photometry ,spiral [galaxies] ,SPECTRAL ENERGY-DISTRIBUTION ,Physics and Astronomy ,13. Climate action ,Space and Planetary Science ,Physical Sciences ,photometry [galaxies] ,Spectral energy distribution ,Astrophysics::Earth and Planetary Astrophysics ,STELLAR MASS ,EMISSION ,METALLICITY ,galaxies: ISM ,Data reduction - Abstract
We present the SCUBA-2 850 ${\mu}m$ component of JINGLE, the new JCMT large survey for dust and gas in nearby galaxies, which with 193 galaxies is the largest targeted survey of nearby galaxies at 850 ${\mu}m$. We provide details of our SCUBA-2 data reduction pipeline, optimised for slightly extended sources, and including a calibration model adjusted to match conventions used in other far-infrared data. We measure total integrated fluxes for the entire JINGLE sample in 10 infrared/submillimetre bands, including all WISE, Herschel-PACS, Herschel-SPIRE and SCUBA-2 850 ${\mu}m$ maps, statistically accounting for the contamination by CO(J=3-2) in the 850 ${\mu}m$ band. Of our initial sample of 193 galaxies, 191 are detected at 250 ${\mu}m$ with a $\geq$ 5${\sigma}$ significance. In the SCUBA-2 850 ${\mu}m$ band we detect 126 galaxies with $\geq$ 3${\sigma}$ significance. The distribution of the JINGLE galaxies in far-infrared/sub-millimetre colour-colour plots reveals that the sample is not well fit by single modified-blackbody models that assume a single dust-emissivity index $(\beta)$. Instead, our new 850 ${\mu}m$ data suggest either that a large fraction of our objects require $\beta < 1.5$, or that a model allowing for an excess of sub-mm emission (e.g., a broken dust emissivity law, or a very cold dust component 10 K) is required. We provide relations to convert far-infrared colours to dust temperature and $\beta$ for JINGLE-like galaxies. For JINGLE the FIR colours correlate more strongly with star-formation rate surface-density rather than the stellar surface-density, suggesting heating of dust is greater due to younger rather than older stellar-populations, consistent with the low proportion of early-type galaxies in the sample., Comment: Accepted by MNRAS; data available at http://www.star.ucl.ac.uk/JINGLE/ more...
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- 2019
116. Use of standardized methods to improve extinction-risk classification
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Hunter J. Howell, Nicole D. Leventhal, Dishane K. Hewavithana, Stephanie L. Clements, Christopher A. Searcy, Caitlin C. Mothes, and Aaron S. David
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0106 biological sciences ,education.field_of_study ,Conservation of Natural Resources ,Actuarial science ,Extinction ,Ecology ,business.industry ,010604 marine biology & hydrobiology ,Population ,Endangered Species ,Distribution (economics) ,010603 evolutionary biology ,01 natural sciences ,United States ,Odds ,Consistency (database systems) ,Geography ,Abundance (ecology) ,Transparency (graphic) ,Animals ,Listing (finance) ,education ,business ,Ecology, Evolution, Behavior and Systematics ,Nature and Landscape Conservation - Abstract
Standardized classification methods based on quantifiable risk metrics are critical for evaluating extinction threats because they increase objectivity, consistency, and transparency of listing decisions. Yet, in the United States, neither federal nor state agencies use standardized methods for listing species for legal protection, which could put listing decisions at odds with the magnitude of the risk. We used a recently developed set of quantitative risk metrics for California herpetofauna as a case study to highlight discrepancies in listing decisions made without standardized methods. We also combined such quantitative metrics with classification tree analysis to attempt to increase the transparency of previous listing decisions by identifying the criteria that had inherently been given the most weight. Federally listed herpetofauna in California scored significantly higher on the risk-metric spectrum than those not federally listed, whereas state-listed species did not score any higher than species that were not state listed. Based on classification trees, state endemism was the most important predictor of listing status at the state level and distribution trend (decline in a species' range size) and population trend (decline in a species' abundance at localized sites) were the most important predictors at the federal level. Our results emphasize the need for governing bodies to adopt standardized methods for assessing conservation risk that are based on quantitative criteria. Such methods allow decision makers to identify criteria inherently given the most weight in determining listing status, thus increasing the transparency of previous listing decisions, and produce an unbiased comparison of conservation threat across all species to promote consistency, efficiency, and effectiveness of the listing process.Uso de Métodos Estandarizados para Mejorar la Clasificación del Riesgo de Extinción Resumen Los métodos estandarizados de clasificación basados en medidas cuantificables del riesgo de extinción son sumamente importantes para evaluar las amenazas de extinción ya que incrementan la objetividad, consistencia y transparencia de las decisiones de listado. Aún así, en los Estados Unidos, ni las agencias federales ni las estatales usan métodos estandarizados para enlistar a las especies para su protección legal, lo que podría poner en discrepancia a las decisiones de listado con la magnitud del riesgo. Usamos un conjunto de medidas cuantitativas del riesgo, desarrollado recientemente para la herpetofauna de California, como un estudio de caso que nos permitiera resaltar las discrepancias en las decisiones de listado hechas sin métodos estandarizados. También combinamos dichas medidas cuantitativas con un análisis de árbol de clasificación para intentar incrementar la transparencia de las decisiones de listado previas al identificar los criterios a los cuales se les había otorgado mayor peso inherentemente. La herpetofauna de California que se encontraba enlistada a nivel federal tuvo un puntaje significativamente más alto en el espectro de la medida del riesgo que aquellas especies que no estaban enlistadas, mientras que las especies enlistadas a nivel estatal no tuvieron un puntaje más alto que aquellas especies que no estaban enlistadas a nivel estatal. Con base en los árboles de clasificación, el endemismo estatal fue el indicador más importante del estado de listado a nivel estatal y tanto la tendencia de distribución (declinación del tamaño de la extensión de una especie) y como la tendencia poblacional (declinación de la abundancia de una especie en sitios localizados) fueron los indicadores más importantes a nivel federal. Nuestros resultados enfatizan la necesidad que tienen los cuerpos de gobierno de adoptar los métodos estandarizados que están basados en criterios cuantitativos para la evaluación del riesgo de conservación. Dichos métodos permiten que quienes toman las decisiones identifiquen los criterios a los cuales se les otorga inherentemente el mayor peso al determinar el estado de listado, lo que incrementa la transparencia de las decisiones previas de listado, y produce una comparación sin sesgos de la amenaza de conservación en todas las especies para promover la regularidad, eficiencia y efectividad de los procesos de listado.基于定量风险指标的标准化分类方法可以提高濒危物种名录确定的客观性、一致性和透明度, 因而对评估物种的灭绝风险十分重要。然而, 在美国, 无论是联邦机构还是州立机构, 都没有使用标准化方法来确定法律保护的濒危物种, 这可能会导致濒危物种名录决策与物种面临的灭绝风险程度不相一致。我们以最近开发的一套美国加州爬行动物区系定量风险指标为例, 展示了标准化方法的使用与否在濒危物种名录确定中产生的差异。我们还将这些定量指标与分类树分析相结合, 试图通过找出之前的确定方法中占权重最大的指标来增加决策的透明度。被联邦政府列入名录的加州爬行动物的风险指标谱得分明显高于那些没有列入名录的物种, 而州政府列入名录的物种得分却并不比没有列入的物种高。分类树结果还显示, 州级濒危等级最重要的预测因子为州级特有性, 而在联邦一级最重要的预测因子则是分布趋势 (物种分布范围的缩小) 和种群趋势 (局部地区物种丰度的下降) 。我们的研究结果突出表明管理机构应采用基于定量指标的标准化方法来评估保护风险。这些方法可以帮助决策者找到濒危等级确定中最重要的指标, 从而增加已有确定方法的透明度, 还可以通过公正地比较所有物种面临的保护威胁, 以提升濒危物种名录确定过程中的一致性、效率和效果。【翻译: 胡怡思; 审校: 聂永刚】. more...
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- 2019
117. Spatial and temporal alterations in protein structure by EGF regulate cryptic cysteine oxidation
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Arshag D. Mooradian, Matthew J. Egan, Gregory R. Bowman, Jason M. Held, Maxwell I. Zimmerman, Sjoerd van der Post, Jessica B. Behring, and Jenna L. Clements
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Time Factors ,Protein Conformation ,Molecular Dynamics Simulation ,Crystallography, X-Ray ,Biochemistry ,Redox ,Article ,Receptor tyrosine kinase ,03 medical and health sciences ,0302 clinical medicine ,Protein structure ,Cell surface receptor ,Cell Line, Tumor ,Humans ,Nucleotide ,Cysteine ,Phosphorylation ,Molecular Biology ,030304 developmental biology ,chemistry.chemical_classification ,0303 health sciences ,Epidermal Growth Factor ,biology ,Chemistry ,Cell Membrane ,Cell Biology ,Cell biology ,ErbB Receptors ,Crosstalk (biology) ,biology.protein ,Reactive Oxygen Species ,Tyrosine kinase ,Oxidation-Reduction ,A431 cells ,030217 neurology & neurosurgery ,Signal Transduction - Abstract
Stimulation of receptor tyrosine kinases (RTK) such as EGF locally increase reactive oxygen species (ROS) levels at the plasma membrane that oxidize cysteines in proteins to enhance downstream signaling. Spatial confinement of ROS is an important regulatory mechanism to redox signaling, but it remains unknown why stimulation of different receptor tyrosine kinases (RTKs) at the plasma membrane target distinct sets of downstream proteins. To uncover additional mechanisms specifying which cysteines are redox regulated by EGF stimulation, we performed time-resolved quantification of the oxidation of 4,200 cysteine sites subsequent to EGF stimulation in A431 cells. EGF induces three distinct spatiotemporal patterns of cysteine oxidation in functionally organized protein networks, consistent with the spatial confinement model. Unexpectedly, protein crystal structure analysis and molecular dynamic simulation indicate widespread redox regulation of cryptic cysteines that are only solvent exposed upon changes in protein conformation. Phosphorylation and increased flux of nucleotide substrates serve as two distinct modes by which EGF specifies which cryptic cysteines become solvent exposed and redox regulated. Since proteins structurally regulated by different RTKs or cellular perturbations are largely unique, solvent exposure and redox regulation of cryptic cysteines is an important mechanism contextually delineating redox signaling networks.Significance StatementCellular redox processes are interconnected, but are not in equilibrium. Thus, understanding the redox biology of cells requires a systems-level, rather than reductionist, approach. Factors specifying which cysteines are redox regulated by a stimulus remain poorly characterized but are critical to understanding the fundamental properties of redox signaling networks. Here, we show that EGF stimulation induces oxidation of specific cysteines in 3 distinct spatiotemporal patterns. Redox regulated proteins include many proteins in the EGF pathway as well as many cysteines with known functional importance. Many redox regulated cysteines are cryptic and solvent exposed by changes in protein structure that were induced by EGF treatment. The novel finding that cryptic cysteines are redox regulated has important implications for how redox signaling networks are specified and regulated to minimize crosstalk. In addition, this time-resolved dataset of the redox kinetics of 4,200 cysteine sites is an important resource for others and is an important technological achievement towards systems-level understanding of cellular redox biology. more...
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- 2019
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118. Innovations in Washout Tooling to Lower Cost, Shorten Lead Times, and Improve Properties
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Linda L. Clements and John L. Crowley
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business.industry ,Environmental science ,Washout ,Lower cost ,Lead (electronics) ,Process engineering ,business - Published
- 2019
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119. The psychotherapy researcher–practice relationship: Through a clinical supervision lens
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Minnah W. Farook, Alyssa L. Clements-Hickman, Elena Gismero González, Collie W. Conoley, Robert J. Reese, and Jade M. Clemons
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050103 clinical psychology ,Psychotherapist ,Evidence-based practice ,education ,05 social sciences ,Clinical supervision ,050109 social psychology ,Context (language use) ,Psychiatry and Mental health ,Clinical Psychology ,Clinical work ,Psychotherapy process ,Clinical training ,0501 psychology and cognitive sciences ,Psychology ,Applied Psychology - Abstract
The research and practice gap has long been lamented, but less is known about this divide with regard to clinical training. We surveyed psychotherapy researchers who also engage in clinical supervision, assuming they would be most likely to model research–practice integration in a training context, about how they integrate psychotherapy research and clinical supervision. We found that psychotherapy researcher–clinical supervisors valued psychotherapy research and found it useful for training purposes. Similar to other research, however, respondents indicated that they considered other sources of information, including their own clinical work, more helpful for directing their clinical supervision. Psychotherapy researcher–clinical supervisors also valued psychotherapy process and common factors research more than they did evidence-based and empirically supported treatments. Although the research–practice gap in clinical supervision appears smaller than in a practice context, there was still evidence of a g... more...
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- 2017
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120. Chemical mass balance source apportionment of fine and PM10 in the Desert Southwest, USA
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Andrea L. Clements, Matthew P. Fraser, Pierre Herckes, and Paul A. Solomon
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lcsh:GE1-350 ,crustal material source profiles ,organic speciation ,lcsh:Environmental sciences - Abstract
The Desert Southwest Coarse Particulate Matter Study was undertaken in Pinal County, Arizona, to better understand the origin and impact of sources of fine and coarse particulate matter (PM) in rural, arid regions of the U.S. southwestern desert. The desert southwest experiences some of the highest PM10 mass concentrations in the country. To augment previously reported results, 6-week aggregated organic speciation data that included ambient concentrations of n-alkanes, polycyclic aromatic hydrocarbons, organic acids, and saccharides were used in chemical mass balance modeling (CMB). A set of re-suspended soil samples were analyzed for specific marker species to provide locally-appropriate source profiles for the CMB analysis. These profiles, as well as previously collected plant and fungal spore profiles from the region, were combined with published source profiles for other relevant sources and used in the CMB analysis. The six new region-specific source profiles included both organic and inorganic species for four crustal material sources, one plant detritus source, and one fungal spore source.Results indicate that up to half of the ambient PM2.5 was apportioned to motor vehicles with the highest regional contribution observed in the small urban center of Casa Grande. Daily levels of apportioned crustal material accounted for up to 50% of PM2.5 mass with the highest contributions observed at the sites closest to active agricultural areas. Apportioned secondary PM, biomass burning, and road dust typically contributed less than 35% as a group to the apportioned PM2.5 mass. Crustal material was the primary source apportioned to PM10 and accounted for between 50–90% of the apportioned mass. Of the other sources apportioned to PM10, motor vehicles and road dust were the largest contributors at the urban and one of the rural sites, whereas road dust and meat cooking operations were the largest contributors at the other rural site. more...
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- 2016
121. A clickable probe for versatile characterization of S-nitrosothiols
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Franziska Pohl, Jenna L. Clements, Vladimir B. Birman, Stephen C. Rogers, Allan Doctor, Pandi Muthupandi, Jason M. Held, and Jack Mao
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Cell signaling ,Fluorophore ,Nitrosation ,Clinical Biochemistry ,Nitric Oxide ,Biochemistry ,Mass Spectrometry ,SNO ,chemistry.chemical_compound ,Biotin ,Affinity chromatography ,Cysteine ,Clickable ,lcsh:QH301-705.5 ,lcsh:R5-920 ,S-Nitrosothiols ,Click chemistry ,Organic Chemistry ,s-nitrosothiol ,Proteins ,s-nitrosation ,S-Nitrosylation ,Probe ,lcsh:Biology (General) ,chemistry ,Biophysics ,s-nitrosylation ,lcsh:Medicine (General) ,Research Paper ,Phosphine - Abstract
S-nitrosation of cysteine thiols (SNOs), commonly referred to as S-nitrosylation, is a cysteine oxoform that plays an important role in cellular signaling and impacts protein function and stability. Direct labeling of SNOs in cells with the flexibility to perform a wide range of cellular and biochemical assays remains a bottleneck as all SNO-targeted probes to date employ a single analytical modality such as biotin or a specific fluorophore. We therefore developed a clickable, alkyne-containing SNO probe ‘PBZyn’ based on the o-phosphino-benzoyl group warhead that enables multi-modal analysis via click conjugation. We demonstrate the utility of PBZyn to assay SNOs using in situ cellular imaging, protein blotting and affinity purification, as well as mass spectrometry. The flexible PBZyn probe will greatly facilitate investigation into the regulation of SNOs. more...
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- 2020
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122. Discovery of a giant and luminous Lya+CIV+HeII nebula at z=3.326 with extreme emission line ratios
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P. Martinez-Navajas, Ismael Perez-Fournon, Dimitra Rigopoulou, Hooshang Nayyeri, Antonio Cabrera-Lavers, Dominik Riechers, C. Jiménez-Ángel, M. Villar-Martín, Asantha Cooray, Duncan Farrah, Luis Colina, David L. Clements, Rob Ivison, Alain Omont, S. J. Oliver, Yiping Shu, Julie Wardlow, Raphael Gavazzi, Rui Marques-Chaves, Douglas Scott, AUTRES, Instituto de Astrofisica de Canarias (IAC), Institut d'Astrophysique de Paris (IAP), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Department of Physics [Oxford], University of Oxford [Oxford], Department of Astronomy, University of California [Irvine] (UCI), University of California-University of California, Department of Physics, Durham University, California Institute of Technology (CALTECH), Astronomy Centre, University of Sussex, Royal Observatory Edinburgh (ROE), and University of Edinburgh more...
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Physics ,Nebula ,Active galactic nucleus ,Stellar mass ,010308 nuclear & particles physics ,Astrophysics::High Energy Astrophysical Phenomena ,FOS: Physical sciences ,Astronomy and Astrophysics ,Astrophysics ,Photoionization ,Astrophysics::Cosmology and Extragalactic Astrophysics ,01 natural sciences ,Astrophysics - Astrophysics of Galaxies ,Galaxy ,[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] ,13. Climate action ,Space and Planetary Science ,Astrophysics of Galaxies (astro-ph.GA) ,0103 physical sciences ,Electron temperature ,Astrophysics::Solar and Stellar Astrophysics ,Emission spectrum ,Halo ,010303 astronomy & astrophysics ,Astrophysics::Galaxy Astrophysics - Abstract
We present the discovery of HLock01-LAB, a luminous and large Lya nebula at z=3.326. Medium-band imaging and long-slit spectroscopic observations with the Gran Telescopio Canarias reveal extended emission in the Lya 1215\AA, CIV1550\AA, and HeII 1640\AA lines over ~100kpc, and a total luminosity L(Lya)=(6.4+/-0.1)x10^44 erg s^-1. HLock01-LAB presents an elongated morphology aligned with two faint radio sources contained within the central ~8kpc of the nebula. The radio structures are consistent to be faint radio jets or lobes of a central galaxy, whose spectrum shows nebular emission characteristic of a type-II active galactic nucleus (AGN). The continuum emission of the AGN at short wavelengths is, however, likely dominated by stellar emission of the host galaxy, for which we derive a stellar mass M* = 2.3x10^11 Msun. The detection of extended emission in CIV and CIII] indicates that the gas within the nebula is not primordial. Feedback may have enriched the halo at at least 50 kpc from the nuclear region. Using rest-frame UV emission-line diagnostics, we find that the gas in the nebula is likely heated by the AGN. Nevertheless, at the center of the nebula we find extreme emission line ratios of Lya/CIV~60 and Lya/HeII~80, one of the highest values measured to date, and well above the standard values of photoionization models (Lya/HeII~30 for case B photoionization). Our data suggest that jet-induced shocks are likely responsible for the increase of the electron temperature and, thus, the observed Lya enhancement in the center of the nebula. This scenario is further supported by the presence of radio structures and perturbed kinematics in this region. The large Lya luminosity in HLock01-LAB is likely due to a combination of AGN photoionization and jet-induced shocks, highlighting the diversity of sources of energy powering Lya nebulae. [abridged], Comment: 13 pages, 8 figures, 3 tables. Accepted for publication in A&A. Abstract abridged for arXiv submission more...
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- 2019
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123. Confirming Herschel candidate protoclusters from ALMA/VLA CO observations
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Manuel Aravena, Ismael Perez-Fournon, Helmut Dannerbauer, C. Gómez-Guijarro, Dominik A. Riechers, T. K. D. Leung, Georgios E. Magdis, S. J. Oliver, Scott Chapman, Riccardo Pavesi, Ivan Valtchanov, David L. Clements, Sune Toft, and Francesco Valentino more...
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formation [galaxies] ,010504 meteorology & atmospheric sciences ,REDSHIFT ,Population ,Continuum (design consultancy) ,FOS: Physical sciences ,galaxies: starburst ,Astrophysics ,Astronomy & Astrophysics ,01 natural sciences ,galaxies: high-redshift ,0201 Astronomical and Space Sciences ,0103 physical sciences ,STAR-FORMING GALAXIES ,clusters: general [galaxies] ,galaxies: formation ,education ,010303 astronomy & astrophysics ,evolution [galaxies] ,POPULATION ,0105 earth and related environmental sciences ,0306 Physical Chemistry (incl. Structural) ,Physics ,education.field_of_study ,Science & Technology ,ISM [galaxies] ,SUBMILLIMETER GALAXIES ,starburst [galaxies] ,Z-SIMILAR-TO-2 ,Star formation ,Astronomy and Astrophysics ,DUST CONTENT ,Astrophysics - Astrophysics of Galaxies ,MOLECULAR GAS ,Galaxy ,Redshift ,Space observatory ,MODEL ,galaxies: clusters: general ,Space and Planetary Science ,Astrophysics of Galaxies (astro-ph.GA) ,Physical Sciences ,0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics ,galaxies: evolution ,CLUSTERS ,high-redshift [galaxies] ,galaxies: ISM ,FRACTIONS - Abstract
ALMA 870$\mu$m continuum imaging has uncovered a population of blends of multiple dusty star-forming galaxies (DSFGs) in sources originally detected with the Herschel Space Observatory. However, their pairwise separations are much smaller that what is found by ALMA follow-up of other single-dish surveys or expected from theoretical simulations. Using ALMA and VLA, we have targeted three of these systems to confirm whether the multiple 870$\mu$m continuum sources lie at the same redshift, successfully detecting $^{12}$CO($J = 3$-2) and $^{12}$CO($J = 1$-0) lines and being able to confirm that in the three cases all the multiple DSFGs are likely physically associated within the same structure. Therefore, we report the discovery of two new gas-rich dusty protocluster cores (HELAISS02, $z = 2.171 \pm 0.004$; HXMM20, $z = 2.602 \pm 0.002$). The third target is located in the well known COSMOS overdensity at $z = 2.51$ (named CL J1001+0220 in the literature), for which we do not find any new secure CO(1-0) detection, although some of its members show only tentative detections and require further confirmation. From the gas, dust, and stellar properties of the two new protocluster cores, we find very large molecular gas fractions yet low stellar masses, pushing the sources above the main sequence, while not enhancing their star formation efficiency. We suggest that the sources might be newly formed galaxies migrating to the main sequence. The properties of the three systems compared to each other and to field galaxies may suggest a different evolutionary stage between systems., Comment: Accepted by ApJ. 24 pages, 9 figures more...
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- 2019
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124. Physical Characterization of an Unlensed, Dusty Star-forming Galaxy at z = 5.85
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Jaclyn B. Champagne, Johannes Staguhn, Patrick Drew, Min Yun, Sune Toft, Christopher C. Hayward, Georgios E. Magdis, Steven L. Finkelstein, Elisabete da Cunha, Anton M. Koekemoer, Kirsten Kraiberg Knudsen, Jeyhan S. Kartaltepe, Yoshiaki Taniguchi, David L. Clements, Nick Scoville, Caitlin M. Casey, Sinclaire M. Manning, Kartik Sheth, Manuel Aravena, Karina Caputi, Justin Spilker, Matthieu Béthermin, Allison W. S. Man, Margherita Talia, Ezequiel Treister, Jorge A. Zavala, Casey C.M., Zavala J.A., Aravena M., Bethermin M., Caputi K.I., Champagne J.B., Clements D.L., Cunha E.D., Drew P., Finkelstein S.L., Hayward C.C., Kartaltepe J.S., Knudsen K., Koekemoer A.M., Magdis G.E., Man A., Manning S.M., Scoville N.Z., Sheth K., Spilker J., Staguhn J., Talia M., Taniguchi Y., Toft S., Treister E., Yun M., Astronomy, Laboratoire d'Astrophysique de Marseille (LAM), and Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS) more...
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Infrared galaxies ,010504 meteorology & atmospheric sciences ,Stellar mass ,Star (game theory) ,INFRARED-EMISSION ,MU-M ,FOS: Physical sciences ,Starburst galaxies ,Astrophysics ,Astronomy & Astrophysics ,01 natural sciences ,Submillimeter Array ,0201 Astronomical and Space Sciences ,0103 physical sciences ,Infrared galaxie ,SOURCE CATALOG ,010303 astronomy & astrophysics ,Blank field ,0105 earth and related environmental sciences ,Cosmic dust ,COSMOS ,0306 Physical Chemistry (incl. Structural) ,Physics ,Science & Technology ,SUBMILLIMETER GALAXIES ,Astronomy and Astrophysics ,Starburst galaxie ,Astrophysics - Astrophysics of Galaxies ,Redshift ,Galaxy ,Blank fields ,High-redshift galaxie ,Stars ,Space and Planetary Science ,[SDU]Sciences of the Universe [physics] ,LUMINOSITY FUNCTION ,Astrophysics of Galaxies (astro-ph.GA) ,Physical Sciences ,0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics ,High-redshift galaxies ,MILKY-WAY ,LARGE-MAGELLANIC-CLOUD ,Halo ,FORMATION RATE DENSITY ,INTERSTELLAR DUST - Abstract
We present a physical characterization of MMJ100026.36+021527.9 (a.k.a. ``MAMBO-9''), a dusty star-forming galaxy (DSFG) at $z=5.850\pm0.001$. This is the highest redshift unlensed DSFG (and fourth most distant overall) found to-date, and is the first source identified in a new 2mm blank-field map in the COSMOS field. Though identified in prior samples of DSFGs at 850$\mu$m-1.2mm with unknown redshift, the detection at 2mm prompted further follow-up as it indicated a much higher probability that the source was likely to sit at $z>4$. Deep observations from the Atacama Large Millimeter and submillimeter Array (ALMA) presented here confirm the redshift through the secure detection of $^{12}$CO($J\!=$6$\rightarrow$5) and p-H$_{2}$O(2$_{1,1}\!\rightarrow$2$_{0,2}$). MAMBO-9 is comprised of a pair of galaxies separated by 6kpc with corresponding star-formation rates of 590M$_\odot$yr$^{-1}$ and 220M$_\odot$yr$^{-1}$ total molecular hydrogen gas mass of (1.7$\pm$0.4)$\times10^{11}$M$_\odot$, dust mass of (1.3$\pm$0.3)$\times10^{9}$M$_\odot$ and stellar mass of (3.2$^{+1.0}_{-1.5}$)$\times10^{9}$M$_\odot$. The total halo mass, (3.3$\pm$0.8)$\times10^{12}$M$_\odot$, is predicted to exceed $>10^{15}$M$_\odot$ by $z=0$. The system is undergoing a merger-driven starburst which will increase the stellar mass of the system tenfold in $\tau_{\rm depl}=40-80$Myr, converting its large molecular gas reservoir (gas fraction of 96$^{+1}_{-2}$%) into stars. MAMBO-9 evaded firm spectroscopic identification for a decade, following a pattern that has emerged for some of the highest redshift DSFGs found. And yet, the systematic identification of unlensed DSFGs like MAMBO-9 is key to measuring the global contribution of obscured star-formation to the star-formation rate density at $z>4$, the formation of the first massive galaxies, and the formation of interstellar dust at early times ($, Comment: 24 pages, 8 figures, accepted for publication in ApJ more...
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- 2019
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125. Large Molecular Gas Reservoirs in Star Forming Cluster Galaxies
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Tony Mroczkowski, David L. Clements, Carlos De Breuck, Joseph Cairns, and Andra Stroe
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RAM-PRESSURE ,galaxies: spiral ,Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,010504 meteorology & atmospheric sciences ,Stellar mass ,galaxies: clusters: individual (Antlia) ,Star (game theory) ,IRAM LEGACY SURVEY ,FOS: Physical sciences ,Astrophysics ,Astronomy & Astrophysics ,01 natural sciences ,Intracluster medium ,0103 physical sciences ,0201 Astronomical and Space Sciences ,Cluster (physics) ,NEARBY GALAXIES ,Emission spectrum ,010303 astronomy & astrophysics ,Galaxy cluster ,0105 earth and related environmental sciences ,Physics ,0306 Physical Chemistry (incl. Structural) ,Science & Technology ,Star formation ,Astronomy and Astrophysics ,DISK GALAXIES ,VIRGO CLUSTER ,Astrophysics - Astrophysics of Galaxies ,Galaxy ,ISM: molecules ,ATOMIC GAS ,ALPHA LUMINOSITY FUNCTION ,NEUTRAL HYDROGEN ,Space and Planetary Science ,galaxies: star formation ,Astrophysics of Galaxies (astro-ph.GA) ,Physical Sciences ,0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics ,galaxies: evolution ,SPIRAL GALAXIES ,galaxies: ISM ,H-I ,Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
We present CO(2-1) observations of 72 galaxies in the nearby, disturbed Antlia galaxy cluster with the Atacama Pathfinder Experiment (APEX) telescope. The galaxies in our sample are selected to span a wide range of stellar masses ($10^{8}M_{\odot}\lesssim M_{\star} \lesssim 10^{10}M_{\odot}$) and star formation rates ($0.0005M_{\odot}\text{yr}^{-1}, Comment: Accepted to ApJ. 46 pages, 14 figures, 5 tables more...
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- 2019
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126. AKARI and IRAS: From beam corrections to SEDs
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Josh Greenslade, Jose Afonso, Chris Pearson, Michael Rowan-Robinson, Vianney Labouteiller, Duncan Farrah, David L. Clements, Lingyu Wang, Andreas Efstathiou, Astronomy, Science and Technology Facilities Council, and Science and Technology Facilities Council (STFC) more...
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Point source ,Infrared ,astro-ph.GA ,media_common.quotation_subject ,FOS: Physical sciences ,galaxies: starburst ,DUST ,Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astronomy & Astrophysics ,01 natural sciences ,infrared: galaxies ,Photometry (optics) ,0103 physical sciences ,Astrophysics::Solar and Stellar Astrophysics ,010303 astronomy & astrophysics ,Astrophysics::Galaxy Astrophysics ,media_common ,Luminous infrared galaxy ,Physics ,010308 nuclear & particles physics ,Astronomy and Astrophysics ,Astrophysics - Astrophysics of Galaxies ,Galaxy ,GALAXIES ,0201 Astronomical And Space Sciences ,Wavelength ,galaxies: photometry ,13. Climate action ,Space and Planetary Science ,Sky ,Astrophysics of Galaxies (astro-ph.GA) ,Spectral energy distribution ,Astrophysics::Earth and Planetary Astrophysics ,catalogs - Abstract
There is significant scientific value to be gained from combining AKARI fluxes with data at other far-IR wavelengths from the IRAS and Herschel missions. To be able to do this we must ensure that there are no systematic differences between the datasets that need to be corrected before the fluxes are compatible with each other. One such systematic effect identified in the BSCv1 data is the issue of beam corrections. We determine these for the BSCv2 data by correlating ratios of appropriate IRAS and AKARI bands with the difference in 2MASS J band extended and point source magnitudes for sources cross matched between the IRAS FSC, AKARI BSCv2 and 2MASS catalogs. We find significant correlations (p<< 10^-13) indicating that beam corrections are necessary in the 65 and 90 micron bands. We then use these corrected fluxes to supplement existing data in spectral energy distribution (SED) fits for ultraluminous infrared galaxies in the HERUS survey. The addition of AKARI fluxes makes little difference to the results of simple (T,beta) fits to the SEDs of these sources, though there is a general decrease in reduced chi^2 values. The utility of the extra AKARI data, however, is in allowing physically more realistic SED models with more parameters to be fit to the data. We also extend our analysis of beam correction issues in the AKARI data by examining the Herschel Reference Sample, which have Herschel photometry from 100 to 500 microns and which are more spatially extended than the HERUS ULIRGs. Thirty-four of the HRS sources have good Herschel SEDs and matching data from AKARI. This investigation finds that our simple 2MASS-based beam correction scheme is inadequate for these larger and more complex sources. There are also indications that additional beam corrections at 140 and 160 microns are needed for these sources, extended on scales >1 arcminute., Accepted for publication in the PASJ special issue on AKARI. 3 Figures more...
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- 2019
127. Chikungunya and O’nyong-nyong Viruses in Uganda: Implications for Diagnostics
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Merlin L. Robb, Randal J. Schoepp, Cynthia A. Rossi, Tamara L Clements, Hannah Kibuuka, Peter Kataaha, Lisa E. Hensley, Amanda K Irish, Nelson L. Michael, and Leigh Anne Eller
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0301 basic medicine ,chikungunya ,serosurvey ,viruses ,030231 tropical medicine ,CHIKV ,ONNV ,Dengue virus ,medicine.disease_cause ,Virus ,Marburg virus ,03 medical and health sciences ,0302 clinical medicine ,Plaque reduction neutralization test ,o’nyong-nyong ,medicine ,Major Article ,diagnostics ,Uganda ,Chikungunya ,Ebola virus ,business.industry ,Yellow fever ,virus diseases ,medicine.disease ,Virology ,030104 developmental biology ,Infectious Diseases ,Lassa virus ,Oncology ,business - Abstract
BackgroundA serosurvey of healthy blood donors provided evidence of hemorrhagic fever and arthropod-borne virus infections in Uganda.MethodsAntibody prevalence to arthropod-borne and hemorrhagic fever viruses in human sera was determined using enzyme-linked immunosorbent assay (ELISA) and plaque reduction neutralization test (PRNT).ResultsThe greatest antibody prevalence determined by ELISA was to chikungunya virus (CHIKV) followed in descending order by West Nile virus (WNV), Crimean-Congo hemorrhagic fever virus (CCHFV), Ebola virus (EBOV), dengue virus (DEN), yellow fever virus (YFV), Rift Valley fever virus (RVFV), Marburg virus (MARV), and Lassa virus (LASV). Further investigation of CHIKV-positive sera demonstrated that the majority of antibody responses may likely be the result of exposure to the closely related alphavirus o’nyong-nyong virus (ONNV).ConclusionsAs the use of highly specific and sensitive polymerase chain reaction–based assays becomes the diagnostic standard without the corresponding use of the less sensitive but more broadly reactive immunological-based assays, emerging and re-emerging outbreaks will be initially missed, illustrating the need for an orthogonal system for the detection and identification of viruses causing disease. more...
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- 2019
128. To C- or not to C-, that is the question
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S. Jackson, G. Shartle, Lei Zong, Xiaohui Yang, S. Papernyi, Han Sun, Kuang-Tsan Wu, W. R. L. Clements, B. Shum-Tim, and Pierre Mertz
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- 2019
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129. SCUBA-2 observations of candidate starbursting protoclusters selected by Planck and Herschel-SPIRE
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T. Cheng, Jingzhe Ma, Lingyu Wang, Helmut Dannerbauer, M. N. Bremer, E. van Kampen, Hooshang Nayyeri, J. González-Nuevo, David L. Clements, Paola Andreani, Edo Ibar, Dominik Riechers, I. Valtchanov, J. Greenslade, Pasquale Temi, Douglas Scott, Mattia Vaccari, Lerothodi Leonard Leeuw, Michał J. Michałowski, Joseph Cairns, Asantha Cooray, L. Conversi, G. de Zotti, Stephen Anthony Eales, and Astronomy more...
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FOS: Physical sciences ,galaxies: starburst ,Astronomy & Astrophysics ,01 natural sciences ,LYMAN BREAK GALAXIES ,STAR-FORMATION ,symbols.namesake ,PROTO-CLUSTER ,galaxies: high-redshift ,ELLIPTIC GALAXIES ,BOLOMETER CAMERA ,0103 physical sciences ,galaxies [submillimetre] ,0201 Astronomical and Space Sciences ,14. Life underwater ,Planck ,DUSTY GALAXIES ,010303 astronomy & astrophysics ,BLACK-HOLES ,Physics ,SUBMILLIMETER GALAXIES ,010308 nuclear & particles physics ,starburst [galaxies] ,Astronomy ,Astronomy and Astrophysics ,Astrophysics - Astrophysics of Galaxies ,13. Climate action ,Space and Planetary Science ,Astrophysics of Galaxies (astro-ph.GA) ,symbols ,HIGH-REDSHIFT ,submillimetre: galaxies ,high-redshift [galaxies] ,COSMOLOGY LEGACY SURVEY - Abstract
We present SCUBA-2 850-$\mu$m observations of 13 candidate starbursting protoclusters selected using Planck and Herschel data. The cumulative number counts of the 850-$\mu$m sources in 9/13 of these candidate protoclusters show significant overdensities compared to the field, with the probability $2$ protoclusters and the peak of the cosmic star-formation rate density (SFRD). We find that the 850-$\mu$m sources in our candidate protoclusters have infrared luminosities of $L_{\mathrm{IR}}\gtrsim$10$^{12}L_{\odot}$ and star-formation rates of SFR=(500-1,500)$M_{\odot}$yr$^{-1}$. By comparing with results in the literature considering only Herschel photometry, we conclude that our 13 candidate protoclusters can be categorised into four groups: six of them being high-redshift starbursting protoclusters, one being a lower-redshift cluster/protocluster, three being protoclusters that contain lensed DSFG(s) or are rich in 850-$\mu$m sources, and three regions without significant Herschel or SCUBA-2 source overdensities. The total SFRs of the candidate protoclusters are found to be comparable or higher than those of known protoclusters, suggesting our sample contains some of the most extreme protocluster population. We infer that cross-matching Planck and Herschel data is a robust method for selecting candidate protoclusters with overdensities of 850-$\mu$m sources., Comment: 30 pages, 8 figures, 5 tables, accepted for publication in MNRAS more...
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- 2019
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130. JINGLE, a JCMT legacy survey of dust and gas for galaxy evolution studies - I. Survey overview and first results
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His-An Pan, Jongwan Ko, Yujin Yang, Taehyun Kim, Minjin Kim, Pauline Barmby, Walter Kieran Gear, Christopher J. R. Clark, Amélie Saintonge, J. Greenslade, Lihwai Lin, Xu Kong, Se Heon Oh, Serena Viti, Yun-Kyeong Sheen, Peter Scicluna, Elias Brinks, Wing-Kit Lee, Ilse De Looze, J. G. A. Wouterloot, Yali Shao, Changbom Park, Jonathan Ivor Davies, Zheng Zheng, Jillian M. Scudder, Hyunjin Jeong, An-Li Tsai, Ramya Sethuram, Ho Seong Hwang, Anna Cibinel, Kristine Spekkens, Ting Xiao, Yu Gao, Luis C. Ho, S. Urquhart, Isabella Lamperti, F. Yuan, David W H Glass, Yong Shi, Jong Chul Lee, Lapo Fanciullo, Thavisha E. Dharmawardena, Gioacchino Accurso, Kristen Coppin, Junfeng Wang, Kate Rowlands, Xue-Jian Jiang, C. Yang, Cheng Li, Harriet Parsons, Haley Louise Gomez, Jo Hoon Kim, Connor M. A. Smith, Cedric G. Lacey, Taotao Fang, Joon Hyeop Lee, Giulio Violino, Mark Sargent, Stephen Serjeant, Toby Brown, Martin Bureau, Hyunjin Shim, Feng Huang, Ming Zhu, David A. Wake, Padelis P. Papadopoulos, Bumhyun Lee, Aeere Chung, Tomoka Tosaki, Jinhua He, Anne E. Sansom, Yang Gao, Kevin Lacaille, Francisca Kemper, Thomas G. Williams, David L. Clements, Steve Eales, Phillip J. Cigan, Qian Jiao, Timothy A. Davis, Aprajita Verma, Thomas R. Greve, Eun Jung Chung, Matthew Smith, Karen L. Masters, Christine D. Wilson, Angus Mok, Sung-Joon Park, Michał J. Michałowski, N. Bourne, Kijeong Yim, Science and Technology Facilities Council (STFC), and Science and Technology Facilities Council more...
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010504 meteorology & atmospheric sciences ,F800 ,ST/N005317/1 ,ST/L000652/1 ,01 natural sciences ,Astrophysics::Solar and Stellar Astrophysics ,ABSORPTION-COEFFICIENT ,010303 astronomy & astrophysics ,QB ,Physics ,general [ISM] ,MASSIVE GALAXIES ,ST/K00106X/1 ,Physical Sciences ,galaxies: evolution ,Data release ,galaxies: ISM ,Sample selection ,DATA RELEASE ,INFRARED-EMISSION ,FOS: Physical sciences ,PHYSICAL-PROPERTIES ,ARECIBO SDSS SURVEY ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astronomy & Astrophysics ,STAR-FORMATION ,0103 physical sciences ,Galaxy formation and evolution ,STFC ,Astrophysics::Galaxy Astrophysics ,ISM: general ,0105 earth and related environmental sciences ,Science & Technology ,RCUK ,Astronomy ,HERSCHEL-ATLAS ,Astronomy and Astrophysics ,evolution [Galaxies] ,ST/N000919/1 ,Astrophysics - Astrophysics of Galaxies ,Galaxy ,Interstellar medium ,0201 Astronomical And Space Sciences ,ST/M001008/1 ,TEMPERATURE-DEPENDENCE ,Space and Planetary Science ,ISM- galaxies: photmetry [Galaxies] ,Astrophysics of Galaxies (astro-ph.GA) ,galaxies: photmetry ,DIGITAL SKY SURVEY ,ST/N000838/1 ,ST/K001051/1 - Abstract
JINGLE is a new JCMT legacy survey designed to systematically study the cold interstellar medium of galaxies in the local Universe. As part of the survey we perform 850um continuum measurements with SCUBA-2 for a representative sample of 193 Herschel-selected galaxies with M*>10^9Msun, as well as integrated CO(2-1) line fluxes with RxA3m for a subset of 90 of these galaxies. The sample is selected from fields covered by the Herschel-ATLAS survey that are also targeted by the MaNGA optical integral-field spectroscopic survey. The new JCMT observations combined with the multi-wavelength ancillary data will allow for the robust characterization of the properties of dust in the nearby Universe, and the benchmarking of scaling relations between dust, gas, and global galaxy properties. In this paper we give an overview of the survey objectives and details about the sample selection and JCMT observations, present a consistent 30 band UV-to-FIR photometric catalog with derived properties, and introduce the JINGLE Main Data Release (MDR). Science highlights include the non-linearity of the relation between 850um luminosity and CO line luminosity, and the serendipitous discovery of candidate z>6 galaxies., MNRAS in press, 25 pages more...
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- 2018
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131. Source Identification of Coarse Particles in the Desert Southwest, USA using Positive Matrix Factorization
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Jeffrey Lantz, Michael Sundblom, Andrea L. Clements, Nabin Upadhyay, Matthew P. Fraser, Paul A. Solomon, and Pierre Herckes
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Atmospheric Science ,010504 meteorology & atmospheric sciences ,Meteorology ,Ammonium nitrate ,Air pollution ,010501 environmental sciences ,Particulates ,Atmospheric sciences ,medicine.disease_cause ,01 natural sciences ,Pollution ,National Ambient Air Quality Standards ,Arid ,Article ,Aerosol ,chemistry.chemical_compound ,chemistry ,medicine ,Spatial variability ,Waste Management and Disposal ,Air quality index ,0105 earth and related environmental sciences - Abstract
The Desert Southwest Coarse Particulate Matter Study was undertaken to further our understanding of the spatial and temporal variability and sources of fine and coarse particulate matter (PM) in rural, arid, desert environments. Sampling was conducted between February 2009 and February 2010 in Pinal County, AZ near the town of Casa Grande where PM concentrations routinely exceed the U.S. National Ambient Air Quality Standards (NAAQS) for both PM 10 and PM 2.5 . In this desert region, exceedances of the PM 10 NAAQS are dominated by high coarse particle concentrations, a common occurrence in this region of the United States. This work expands on previously published measurements of PM mass and chemistry by examining the sources of fine and coarse particles and the relative contribution of each to ambient PM mass concentrations using the Positive Matrix Factorization receptor model (Clements et al., 2014). Coarse particles within the region were apportioned to nine sources including primary biological aerosol particles (PBAPs - 25%), crustal material (20%), re-entrained road dust (11%), feedlot (11% at the site closest to a cattle feedlot), secondary particles (10%), boron-rich crustal material (9%), and transported soil (6%), with minor contributions from ammonium nitrate, and salt (considered to be NaCl). Fine particles within the region were apportioned to six sources including motor vehicles (37%), road dust (29%), lead-rich (10%), with minor contributions from brake wear, crustal material, and salt. These results can help guide local air pollution improvement strategies designed to reduce levels of PM to below the NAAQS. more...
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- 2018
132. A 100-W 1178-nm continuous-wave single-frequency linearly polarized Raman fiber amplifier
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Vladimir Karpov, Ning Guo, Wallace R. L. Clements, and Daoping Wei
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Materials science ,Extinction ratio ,business.industry ,Energy conversion efficiency ,Second-harmonic generation ,02 engineering and technology ,Laser pumping ,021001 nanoscience & nanotechnology ,Laser ,01 natural sciences ,law.invention ,010309 optics ,Laser linewidth ,Optics ,law ,Brillouin scattering ,Fiber laser ,0103 physical sciences ,0210 nano-technology ,business - Abstract
We report a 100-W continuous-wave (CW) 1178-nm narrowband polarization-maintaining (PM) Raman fiber amplifier (RFA) based on ESO’s patented RFA technology. A linearly-polarized 15-mW narrow-linewidth 1178-nm seed laser was amplified in a two-stage PM RFA counter-pumped by a PM 1120-nm fiber laser. Efficient suppression of stimulated Brillouin scattering (SBS) pushed the SBS threshold above 100 W. The Raman fiber types and lengths were chosen to maximize the Raman conversion efficiency in order to mitigate the thermal loads on critical optical components in the RFA. At 100 W of RFA output, which to the best of our knowledge is a record for such an RFA, the required 1120-nm pump laser power is only 180 W. Measurements of the linewidth of the amplified 1178-nm output at different power levels confirmed that the narrow linewidth of the 1178-nm seed laser is preserved even at 100 W of RFA output. The measured polarization extinction ratio (PER) at the 100-W level is > 24 dB, ensuring efficient second harmonic generation. Assuming a conservative conversion efficiency of ~ 80% by a resonant frequency doubler, narrow-linewidth CW guide star lasers with powers > 80 W at 589 nm can confidently be expected. The output spectrum measured at 100 W reveals that there is no risk of power migration from 1178 nm to the next Stokes order, which indicates that the RFA is still SBS-limited. With further optimization of the SBS suppression, it is expected that the RFA output power can be scaled beyond the current 100-W level. more...
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- 2018
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133. Exploring Cosmic Origins with CORE:survey requirements and mission design
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Karl Young, N. Mandolesi, A. Renzi, D. McCarthy, Andrea Lapi, F. Voisin, F. Oppizzi, Mark Hindmarsh, A. Mennella, Josquin Errard, S. Martin, Jose M. Diego, Enrico Pajer, Douglas Scott, A. Da Silva, Luigi Danese, R. B. Partridge, Subodh P. Patil, Créidhe O'Sullivan, A. M. C. Le Brun, Gianluca Polenta, Deanna C. Hooper, Alessandro Buzzelli, O. Perdereau, Jose Alberto Rubino-Martin, Nicolas Ponthieu, C. J. A. P. Martins, Eric Hivon, M. De Petris, Reijo Keskitalo, Bruno Maffei, Rashid Sunyaev, Michael L. Brown, Elena Giusarma, Marek Biesiada, Joanes Lizarraga, Nicola Bartolo, F. Piacentini, Stephen M. Feeney, G. de Zotti, Neil Trappe, Bin Hu, Cristian Franceschet, Matthieu Tristram, Pasquale Mazzotta, R. Allison, Hannu Kurki-Suonio, Jens Chluba, J. Greenslade, R. Fernandez-Cobos, Alicia Gomez, Stephen Serjeant, A. Catalano, Paolo Natoli, C. S. Carvalho, K. Kiiveri, David L. Clements, Diego Molinari, S. Paradiso, Martina Gerbino, Vincent Vennin, Carole Tucker, Kaustuv Basu, Alexei A. Starobinsky, Sabino Matarrese, Andrea Ravenni, L. Salvati, Eduardo Artal, G. Vermeulen, M. Piat, M. Tucci, F. Noviello, Ingunn Kathrine Wehus, Elia S. Battistelli, Matteo Bonato, R. Banerji, Ted Kisner, Jean-Baptiste Melin, Christophe Ringeval, Christopher G. R. Wallis, Benjamin D. Wandelt, Julian Borrill, Massimiliano Lattanzi, Aurelien Bideaud, Sebastien Clesse, Tiziana Trombetti, Martin Crook, Will Handley, P. de Bernardis, Ruth Durrer, Francois Boulanger, Matthieu Roman, C. Y. Tan, Sébastien Triqueneaux, Silvia Galli, G. Signorelli, A. Tartari, Gianmassimo Tasinato, S. Basak, Nicola Vittorio, D. Tramonte, V. Lindholm, Julien Lesgourgues, J. F. Macías-Pérez, E. Di Valentino, Francesco Forastieri, G. de Gasperis, Thomas Kitching, Vincent Desjacques, François R. Bouchet, Zhen-Yi Cai, Sergio Colafrancesco, Richard A. Battye, Alessandro Monfardini, F.-X. Désert, Alessandro Paiella, Jesús Torrado, Michele Liguori, Anthony Challinor, Carlo Burigana, G. Castellano, Agnieszka Pollo, Daniel Baumann, L. Pagano, Boudewijn F. Roukema, Mathieu Remazeilles, Sophie Henrot-Versille, M. Tomasi, Enrique Martinez-Gonzalez, Giampaolo Pisano, M. Kunz, Joseph J. Mohr, Ricardo Genova-Santos, P. Vielva, Mattia Negrello, Marcella Massardi, Carlo Baccigalupi, Guilaine Lagache, Marco Bersanelli, Anthony Lasenby, S. Hagstotz, Domingos Barbosa, E. Keihänen, D. Prêle, Vivian Poulin, Mario Zannoni, Alain Benoit, Ana Achúcarro, D. T. Hoang, I. Colantoni, U. Fuskeland, D. Contreras, Giovanni Cabass, Jochem J. A. Baselmans, Johannes Goupy, Jochen Weller, I. Charles, Sebastian Grandis, Giuseppe D'Alessandro, M. Ashdown, A. Bonaldi, Frederico Arroja, Guido D'Amico, Gemma Luzzi, M. A. de Avillez, Martino Calvo, Silvia Masi, Daniela Paoletti, Alessandro Coppolecchia, Andrea Caputo, L. Polastri, Alessandro Melchiorri, Jon Urrestilla, Licia Verde, Mario Ballardini, Luisa Toffolatti, Jacques Delabrouille, Alessio Notari, Maciej Bilicki, Fabio Finelli, L. A. Montier, James G. Bartlett, Guillaume Patanchon, Carlos Hernández-Monteagudo, Miguel Quartin, Cora Dvorkin, Simon Doyle, H. K. Eriksen, C. Hervias-Caimapo, R. van de Weygaert, Clive Dickinson, Peter A. R. Ade, Matthew Hills, Luca Lamagna, B. Van Tent, A. J. Banday, Thejs Brinckmann, F. J. Casas, Martin Bucher, Shaul Hanany, Jussi Valiviita, J. González-Nuevo, Diederik Roest, String Theory (ITFA, IoP, FNWI), Universitat de Barcelona, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Institut Néel (NEEL), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut Nanosciences et Cryogénie (INAC), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA), Institut de Planétologie et d'Astrophysique de Grenoble (IPAG), Centre National d'Études Spatiales [Toulouse] (CNES)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut Lagrange de Paris, Sorbonne Universités, Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Astrophysique de Marseille (LAM), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Département de Physique des Particules (ex SPP) (DPP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire d'Annecy-le-Vieux de Physique Théorique (LAPTH), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Centre de Recherche Astrophysique de Lyon (CRAL), École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Théorique d'Orsay [Orsay] (LPT), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), CORE, Department of Physics, Helsinki Institute of Physics, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Hélium : du fondamental aux applications (NEEL - HELFA), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Cryogénie (NEEL - Cryo), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Laboratoire des Cryoréfrigérateurs et Cryogénie Spatiale (LCCS), Service des Basses Températures (SBT ), Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPC), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Université Fédérale Toulouse Midi-Pyrénées-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Grenoble Alpes (UGA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Centre National d'Études Spatiales [Toulouse] (CNES)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ), Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA), Sorbonne Université (SU), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Delabrouille, J, de Bernardis, P, Bouchet, F, Achúcarro, A, Ade, P, Allison, R, Arroja, F, Artal, E, Ashdown, M, Baccigalupi, C, Ballardini, M, Banday, A, Banerji, R, Barbosa, D, Bartlett, J, Bartolo, N, Basak, S, Baselmans, J, Basu, K, Battistelli, E, Battye, R, Baumann, D, Benoít, A, Bersanelli, M, Bideaud, A, Biesiada, M, Bilicki, M, Bonaldi, A, Bonato, M, Borrill, J, Boulanger, F, Brinckmann, T, Brown, M, Bucher, M, Burigana, C, Buzzelli, A, Cabass, G, Cai, Z, Calvo, M, Caputo, A, Carvalho, C, Casas, F, Castellano, G, Catalano, A, Challinor, A, Charles, I, Chluba, J, Clements, D, Clesse, S, Colafrancesco, S, Colantoni, I, Contreras, D, Coppolecchia, A, Crook, M, D'Alessandro, G, D'Amico, G, da Silva, A, de Avillez, M, de Gasperis, G, De Petris, M, de Zotti, G, Danese, L, Désert, F, Desjacques, V, Valentino, E, Dickinson, C, Diego, J, Doyle, S, Durrer, R, Dvorkin, C, Eriksen, H, Errard, J, Feeney, S, Fernández-Cobos, R, Finelli, F, Forastieri, F, Franceschet, C, Fuskeland, U, Galli, S, Génova-Santos, R, Gerbino, M, Giusarma, E, Gomez, A, González-Nuevo, J, Grandis, S, Greenslade, J, Goupy, J, Hagstotz, S, Hanany, S, Handley, W, Henrot-Versillé, S, Hernández-Monteagudo, C, Hervias-Caimapo, C, Hills, M, Hindmarsh, M, Hivon, E, Hoang, D, Hooper, D, Hu, B, Keihänen, E, Keskitalo, R, Kiiveri, K, Kisner, T, Kitching, T, Kunz, M, Kurki-Suonio, H, Lagache, G, Lamagna, L, Lapi, A, Lasenby, A, Lattanzi, M, Brun, A, Lesgourgues, J, Liguori, M, Lindholm, V, Lizarraga, J, Luzzi, G, Macìas-Pérez, J, Maffei, B, Mandolesi, N, Martin, S, Martinez-Gonzalez, E, Martins, C, Masi, S, Massardi, M, Matarrese, S, Mazzotta, P, Mccarthy, D, Melchiorri, A, Melin, J, Mennella, A, Mohr, J, Molinari, D, Monfardini, A, Montier, L, Natoli, P, Negrello, M, Notari, A, Noviello, F, Oppizzi, F, O'Sullivan, C, Pagano, L, Paiella, A, Pajer, E, Paoletti, D, Paradiso, S, Partridge, R, Patanchon, G, Patil, S, Perdereau, O, Piacentini, F, Piat, M, Pisano, G, Polastri, L, Polenta, G, Pollo, A, Ponthieu, N, Poulin, V, Prêle, D, Quartin, M, Ravenni, A, Remazeilles, M, Renzi, A, Ringeval, C, Roest, D, Roman, M, Roukema, B, Rubiño-Martin, J, Salvati, L, Scott, D, Serjeant, S, Signorelli, G, Starobinsky, A, Sunyaev, R, Tan, C, Tartari, A, Tasinato, G, Toffolatti, L, Tomasi, M, Torrado, J, Tramonte, D, Trappe, N, Triqueneaux, S, Tristram, M, Trombetti, T, Tucci, M, Tucker, C, Urrestilla, J, Väliviita, J, de Weygaert, R, Tent, B, Vennin, V, Verde, L, Vermeulen, G, Vielva, P, Vittorio, N, Voisin, F, Wallis, C, Wandelt, B, Wehus, I, Weller, J, Young, K, and Zannoni, M more...
- Subjects
CMBR experiments ,CMBR polarisation ,gravitational lensing ,physics of the early universe ,POLARIZATION ,Computer science ,Cosmic microwave background ,cosmic background radiation: polarization ,CMB ,7. Clean energy ,01 natural sciences ,Cosmology ,Physics, Particles & Fields ,cosmic flows ,CMBR polarization ,astronomy and astrophysics ,Cosmic physics ,CMBR experiments – CMBR theory – reionization – high redshift galaxies ,010303 astronomy & astrophysics ,QC ,QB ,COSMIC cancer database ,Physics ,Astrophysics::Instrumentation and Methods for Astrophysics ,Nuclear & Particles Physics ,cryogenics ,Physical Sciences ,Physics::Space Physics ,Systems engineering ,astro-ph.CO ,proposed experiment ,Astrophysics::Earth and Planetary Astrophysics ,CMBR experiment ,Astrophysics - Instrumentation and Methods for Astrophysics ,performance ,Astrophysics - Cosmology and Nongalactic Astrophysics ,Astrophysics and Astronomy ,Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,CMBR experiments, CMBR polarisation, gravitational lensing, physics of the early universe ,satellite ,FOS: Physical sciences ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astronomy & Astrophysics ,NO ,HALF-WAVE PLATE ,0202 Atomic, Molecular, Nuclear, Particle And Plasma Physics ,Mission design ,Settore FIS/05 - Astronomia e Astrofisica ,0103 physical sciences ,[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] ,Instrumentation and Methods for Astrophysics (astro-ph.IM) ,detector: design ,activity report ,Science & Technology ,Cosmologia ,010308 nuclear & particles physics ,astro-ph.IM ,115 Astronomy, Space science ,sensitivity ,Complementarity (physics) ,0201 Astronomical And Space Sciences ,angular resolution ,[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] ,Física còsmica - Abstract
The CORE collaboration thanks CNES, Thales Alenia Space, and Air Liquide Advanced Technologies for advice and technical support during the preparation of the CORE proposal. We also thank the ESA CDF team for the CMB Polarisation CDF study performed in March 2016, the results of which were extensively used to define the mission concept presented in this paper. J.G.N. acknowledges financial support from the Spanish MINECO for a Ramon y Cajal fellowship (RYC-2013-13256) and the I+D 2015 project AYA2015-65887-P (MINECO/FEDER). CJM is supported by an FCT Research Professorship, contract reference IF/00064/2012, funded by FCT/MCTES (Portugal) and POPH/FSE. F.J.C., R.F.-C., E.M.-G. and P.V. acknowledge support from the Spanish Ministerio de Econom´ıa y Competitividad project ESP2015-70646-C2-1-R (cofinanced with EU FEDER funds), ConsoliderIngenio 2010 project CSD2010-00064 and from the CSIC “Proyecto Intramural Especial” project 201550E091. FA is supported by the National Taiwan University (NTU) under Project No. 103R4000 and by the NTU Leung Center for Cosmology and Particle Astrophysics (LeCosPA) under Project No. FI121. BFR acknowledges support from the National Science Centre, Poland, under grant 2014/13/B/ST9/00845., Macìas-Pérez, J.F., Delabrouille, J., De Bernardis, P., Bouchet, F.R., Achúcarro, A., Ade, P.A.R., Allison, R., Arroja, F., Artal, E., Ashdown, M., Baccigalupi, C., Ballardini, M., Banday, A.J., Banerji, R., Barbosa, D., Bartlett, J., Bartolo, N., Basak, S., Baselmans, J.J.A., Basu, K., Battistelli, E.S., Battye, R., Baumann, D., Benoít, A., Bersanelli, M., Bideaud, A., Biesiada, M., Bilicki, M., Bonaldi, A., Bonato, M., Borrill, J., Boulanger, F., Brinckmann, T., Brown, M.L., Bucher, M., Burigana, C., Buzzelli, A., Cabass, G., Cai, Z.-Y., Calvo, M., Caputo, A., Carvalho, C.-S., Casas, F.J., Castellano, G., Catalano, A., Challinor, A., Charles, I., Chluba, J., Clements, D.L., Clesse, S., Colafrancesco, S., Colantoni, I., Contreras, D., Coppolecchia, A., Crook, M., D'Alessandro, G., D'Amico, G., Silva, A.D., De Avillez, M., De Gasperis, G., Petris, M.D., De Zotti, G., Danese, L., Désert, F.-X., Desjacques, V., Valentino, E.D., Dickinson, C., Diego, J.M., Doyle, S., Durrer, R., Dvorkin, C., Eriksen, H.K., Errard, J., Feeney, S., Fernández-Cobos, R., Finelli, F., Forastieri, F., Franceschet, C., Fuskeland, U., Galli, S., Génova-Santos, R.T., Gerbino, M., Giusarma, E., Gomez, A., González-Nuevo, J., Grandis, S., Greenslade, J., Goupy, J., Hagstotz, S., Hanany, S., Handley, W., Henrot-Versillé, S., Hernández-Monteagudo, C., Hervias-Caimapo, C., Hills, M., Hindmarsh, M., Hivon, E., Hoang, D.T., Hooper, D.C., Hu, B., Keihänen, E., Keskitalo, R., Kiiveri, K., Kisner, T., Kitching, T., Kunz, M., Kurki-Suonio, H., Lagache, G., Lamagna, L., Lapi, A., Lasenby, A., Lattanzi, M., Brun, A.M.C.L., Lesgourgues, J., Liguori, M., Lindholm, V., Lizarraga, J., Luzzi, G., Macìas-Pérez, J.F., Maffei, B., Mandolesi, N., Martin, S., Martinez-Gonzalez, E., Martins, C.J.A.P., Masi, S., Massardi, M., Matarrese, S., Mazzotta, P., McCarthy, D., Melchiorri, A., Melin, J.-B., Mennella, A., Mohr, J., Molinari, D., Monfardini, A., Montier, L., Natoli, P., Negrello, M., Notari, A., Noviello, F., Oppizzi, F., O'Sullivan, C., Pagano, L., Paiella, A., Pajer, E., Paoletti, D., Paradiso, S., Partridge, R.B., Patanchon, G., Patil, S.P., Perdereau, O., Piacentini, F., Piat, M., Pisano, G., Polastri, L., Polenta, G., Pollo, A., Ponthieu, N., Poulin, V., Prêle, D., Quartin, M., Ravenni, A., Remazeilles, M., Renzi, A., Ringeval, C., Roest, D., Roman, M., Roukema, B.F., Rubiño-Martin, J.-A., Salvati, L., Scott, D., Serjeant, S., Signorelli, G., Starobinsky, A.A., Sunyaev, R., Tan, C.Y., Tartari, A., Tasinato, G., Toffolatti, L., Tomasi, M., Torrado, J., Tramonte, D., Trappe, N., Triqueneaux, S., Tristram, M., Trombetti, T., Tucci, M., Tucker, C., Urrestilla, J., Väliviita, J., De Weygaert, R.V., Tent, B.V., Vennin, V., Verde, L., Vermeulen, G., Vielva, P., Vittorio, N., Voisin, F., Wallis, C., Wandelt, B., Wehus, I.K., Weller, J., Young, K., Zannoni, M. more...
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- 2018
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134. An extreme protocluster of luminous dusty starbursts in the early universe
- Author
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Axel Weiss, Helmut Dannerbauer, J. Greenslade, Douglas Scott, A. Manilla-Robles, P. van der Werf, A. Omont, Z-Y. Zhang, Steve Maddox, G. de Zotti, I. Perez-Fournon, Rob Ivison, Dominik Riechers, Loretta Dunne, A. J. R. Lewis, Malcolm N. Bremer, Ivan Oteo, Stephen Anthony Eales, Asantha Cooray, David L. Clements, Science and Technology Facilities Council (STFC), Imperial College Trust, and Science and Technology Facilities Council more...
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submillimeter: galaxies ,ULTRA DEEP FIELD ,0306 Physical Chemistry (Incl. Structural) ,media_common.quotation_subject ,FOS: Physical sciences ,galaxies [submillimeter] ,Astrophysics ,Astronomy & Astrophysics ,01 natural sciences ,0305 Organic Chemistry ,HIGH-REDSHIFT GALAXY ,XMM CLUSTER SURVEY ,ISM [radio lines] ,galaxies: high-redshift ,BOLOMETER CAMERA ,0103 physical sciences ,STAR-FORMING GALAXIES ,clusters: general [galaxies] ,ATOMIC CARBON ,Emission spectrum ,NUMBER COUNTS ,ISM [submillimeter] ,010303 astronomy & astrophysics ,evolution [galaxies] ,media_common ,Physics ,radio lines: ISM ,Science & Technology ,SUBMILLIMETER GALAXIES ,010308 nuclear & particles physics ,Star formation ,Image (category theory) ,Astronomy and Astrophysics ,Astrophysics - Astrophysics of Galaxies ,Galaxy ,Universe ,MOLECULAR GAS ,0201 Astronomical And Space Sciences ,13. Climate action ,Space and Planetary Science ,galaxies: clusters: general ,ALL-SKY SURVEY ,Astrophysics of Galaxies (astro-ph.GA) ,Physical Sciences ,submillimeter: ISM ,Halo ,galaxies: evolution ,high-redshift [galaxies] - Abstract
We report the identification of an extreme proto-cluster of galaxies in the early Universe whose core (nicknamed Distant Red Core, DRC) is formed by at least ten dusty star-forming galaxies (DSFGs), confirmed to lie at $z_{\rm spec} = 4.002$ via detection of [CI](1-0), $^{12}$CO(6-5), $^{12}$CO(4-3), $^{12}$CO(2-1) and ${\rm H_2O} (2_{11} - 2_{02})$ emission lines, detected using ALMA and ATCA. The spectroscopically-confirmed components of the proto-cluster are distributed over a ${\rm 260\, kpc \times 310\, kpc}$ region and have a collective obscured star-formation rate (SFR) of $\sim 6500 \, M_\odot \, {\rm yr}^{-1}$, considerably higher than has been seen before in any proto-cluster of galaxies or over-densities of DSFGs at $z \gtrsim 4$. Most of the star formation is taking place in luminous DSFGs since no Ly$\alpha$ emitters are detected in the proto-cluster core, apart from a Ly$\alpha$ blob located next to one of the DRC dusty components and extending over $60\,{\rm kpc}$. The total obscured SFR of the proto-cluster could rise to ${\rm SFR} \sim 14,400 \, M_\odot \, {\rm yr}^{-1}$ if all the members of an over-density of bright DSFGs discovered around DRC in a wide-field LABOCA 870-$\mu$m image are part of the same structure. The total halo mass of DRC could be as high as $\sim 4.4 \times 10^{13}\,M_\odot$ and could be the progenitor of a Coma-like cluster at $z = 0$. The relatively short gas-depletion times of the DRC components suggest either the presence of a mechanism able to trigger extreme star formation simultaneously in galaxies spread over a few hundred kpc or the presence of gas flows from the cosmic web able to sustain star formation over several hundred million years., Comment: Submitted to ApJ. Minor updates added, including a change of the source name. Comments welcome more...
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- 2018
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135. Star formation rates in luminous quasars at 2 <z< 3
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Mat Page, Matthieu Béthermin, Kathryn Harris, Scott Chapman, Sara Petty, Lura K. Pitchford, Edo Ibar, Anne Feltre, Peter Hurley, Bernhard Schulz, S. J. Oliver, Nick Anderson, Duncan Farrah, Marco Viero, Evanthia Hatziminaoglou, Mark Lacy, David L. Clements, M. Symeonidis, Ismael Perez-Fournon, Douglas Scott, Dimitra Rigopoulou, Lingyu Wang, Asantha Cooray, Joaquin Vieira, and Andreas Efstathiou more...
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Physics ,Active galactic nucleus ,010308 nuclear & particles physics ,Star formation ,Astrophysics::High Energy Astrophysical Phenomena ,Astronomy ,Astronomy and Astrophysics ,Context (language use) ,Quasar ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astrophysics ,01 natural sciences ,Redshift ,Luminosity ,Black hole ,Space and Planetary Science ,0103 physical sciences ,010303 astronomy & astrophysics ,Equivalent width ,Astrophysics::Galaxy Astrophysics - Abstract
We investigate the relation between star formation rates (M_s) and AGN properties in optically selected type 1 quasars at 2 < z < 3 using data from Herschel and the SDSS. We find that M_s remains approximately constant with redshift, at 300 ± 100 M⊙ yr^(−1). Conversely, M_s increases with AGN luminosity, up to a maximum of ∼ 600 M⊙ yr^(−1), and with C IV FWHM. In context with previous results, this is consistent with a relation between M_s and black hole accretion rate (M_(bh)) existing in only parts of the z−M_s–M_(bh) plane, dependent on the free gas fraction, the trigger for activity, and the processes that may quench star formation. The relations between M_s and both AGN luminosity and C IV FWHM are consistent with star formation rates in quasars scaling with black hole mass, though we cannot rule out a separate relation with black hole accretion rate. Star formation rates are observed to decline with increasing C IV equivalent width. This decline can be partially explained via the Baldwin effect, but may have an additional contribution from one or more of three factors; M_i is not a linear tracer of L_(2500), the Baldwin effect changes form at high AGN luminosities, and high C IV EW values signpost a change in the relation between M_s and M_(bh). Finally, there is no strong relation between M_s and Eddington ratio, or the asymmetry of the C IV line. The former suggests that star formation rates do not scale with how efficiently the black hole is accreting, while the latter is consistent with C IV asymmetries arising from orientation effects. more...
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- 2016
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136. Chemical mass balance source apportionment of fine and PM10 in the Desert Southwest, USA
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Matthew P. Fraser, Paul A. Solomon, Pierre Herckes, and Andrea L. Clements
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Hydrology ,Detritus ,Soil test ,media_common.quotation_subject ,Chemical mass balance ,Particulates ,Atmospheric sciences ,complex mixtures ,Arid ,Speciation ,Geography ,Casa Grande ,Biomass burning ,General Environmental Science ,media_common - Abstract
The Desert Southwest Coarse Particulate Matter Study was undertaken in Pinal County, Arizona, to better understand the origin and impact of sources of fine and coarse particulate matter (PM) in rural, arid regions of the U.S. southwestern desert. The desert southwest experiences some of the highest PM10 mass concentrations in the country. To augment previously reported results, 6-week aggregated organic speciation data that included ambient concentrations of n-alkanes, polycyclic aromatic hydrocarbons, organic acids, and saccharides were used in chemical mass balance modeling (CMB). A set of re-suspended soil samples were analyzed for specific marker species to provide locally-appropriate source profiles for the CMB analysis. These profiles, as well as previously collected plant and fungal spore profiles from the region, were combined with published source profiles for other relevant sources and used in the CMB analysis. The six new region-specific source profiles included both organic and inorganic species for four crustal material sources, one plant detritus source, and one fungal spore source. Results indicate that up to half of the ambient PM2.5 was apportioned to motor vehicles with the highest regional contribution observed in the small urban center of Casa Grande. Daily levels of apportioned crustal material accounted for up to 50% of PM2.5 mass with the highest contributions observed at the sites closest to active agricultural areas. Apportioned secondary PM, biomass burning, and road dust typically contributed less than 35% as a group to the apportioned PM2.5 mass. Crustal material was the primary source apportioned to PM10 and accounted for between 50–90% of the apportioned mass. Of the other sources apportioned to PM10, motor vehicles and road dust were the largest contributors at the urban and one of the rural sites, whereas road dust and meat cooking operations were the largest contributors at the other rural site. more...
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- 2016
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137. H-ATLAS/GAMA: the nature and characteristics of optically red galaxies detected at submillimetre wavelengths
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Asantha Cooray, A. Dariush, Richard J. Tuffs, Svitlana Zhukovska, J. S. Virdee, Andrew M. Hopkins, David L. Clements, G. de Zotti, Maarten Baes, Jonathan Bland-Hawthorn, F. Shabani, Maritza A. Lara-López, E. Andrae, Barry F. Madore, Michelle E. Cluver, Jonathan Loveday, Matthew Smith, Loretta Dunne, Sugata Kaviraj, Stephen Anthony Eales, Ivan K. Baldry, Aaron S. G. Robotham, Amanda E. Bauer, R. Hopwood, Elisabetta Valiante, C. P. Pearson, Edward N. Taylor, Mark Seibert, Meiert W. Grootes, Kate Rowlands, Michał J. Michałowski, Simon P. Driver, Sarah Brough, Antonio Cava, Cristina Popescu, Jochen Liske, Daniel J. Smith, Nathan Bourne, L. Kelvin, Steve Maddox, Sami Dib, Sacha Hony, European Research Council, and University of St Andrews. School of Physics and Astronomy more...
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HERSCHEL REFERENCE SURVEY ,Stellar population ,Astrophysics ,01 natural sciences ,QB Astronomy ,Astrophysics::Solar and Stellar Astrophysics ,010303 astronomy & astrophysics ,QC ,QB ,Physics ,3rd-DAS ,STELLAR POPULATION SYNTHESIS ,Physical Sciences ,Elliptical galaxy ,Astrophysics::Earth and Planetary Astrophysics ,submillimetre: galaxies ,INTERSTELLAR DUST ,astro-ph.GA ,FOS: Physical sciences ,F500 ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astronomy & Astrophysics ,STAR-FORMATION ,ELLIPTIC GALAXIES ,VIRGO CLUSTER GALAXIES ,galaxies [submillimetre] ,0103 physical sciences ,Astrophysics::Galaxy Astrophysics ,Cosmic dust ,Luminous infrared galaxy ,ta115 ,Science & Technology ,010308 nuclear & particles physics ,Star formation ,LESS-THAN 0.5 ,Astronomy ,Astronomy and Astrophysics ,galaxies: general ,Astrophysics - Astrophysics of Galaxies ,Galaxy ,Redshift ,0201 Astronomical And Space Sciences ,Spire ,QC Physics ,Physics and Astronomy ,Space and Planetary Science ,Astrophysics of Galaxies (astro-ph.GA) ,MASS ASSEMBLY GAMA ,DIGITAL SKY SURVEY ,SCIENCE DEMONSTRATION PHASE ,general [galaxies] - Abstract
We combine Herschel/SPIRE sub-millimeter (submm) observations with existing multi-wavelength data to investigate the characteristics of low redshift, optically red galaxies detected in submm bands. We select a sample of galaxies in the redshift range 0.01$\leq$z$\leq$0.2, having >5$\sigma$ detections in the SPIRE 250 micron submm waveband. Sources are then divided into two sub-samples of $red$ and $blue$ galaxies, based on their UV-optical colours. Galaxies in the $red$ sample account for $\approx$4.2 per cent of the total number of sources with stellar masses M$_{*}\gtrsim$10$^{10}$ Solar-mass. Following visual classification of the $red$ galaxies, we find that $\gtrsim$30 per cent of them are early-type galaxies and $\gtrsim$40 per cent are spirals. The colour of the $red$-spiral galaxies could be the result of their highly inclined orientation and/or a strong contribution of the old stellar population. It is found that irrespective of their morphological types, $red$ and $blue$ sources occupy environments with more or less similar densities (i.e., the $\Sigma_5$ parameter). From the analysis of the spectral energy distributions (SEDs) of galaxies in our samples based on MAGPHYS, we find that galaxies in the $red$ sample (of any morphological type) have dust masses similar to those in the $blue$ sample (i.e. normal spiral/star-forming systems). However, in comparison to the $red$-spirals and in particular $blue$ systems, $red$-ellipticals have lower mean dust-to-stellar mass ratios. Besides galaxies in the $red$-elliptical sample have much lower mean star-formation/specific-star-formation rates in contrast to their counterparts in the $blue$ sample. Our results support a scenario where dust in early-type systems is likely to be of an external origin., Comment: Accepted for publication in MNRAS - Paper without gallery of galaxy post-stamp images (in appendix). Full paper with appendix is available here: http://www.ast.cam.ac.uk/~adariush/hatlas_alidariush_20151125.pdf more...
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- 2016
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138. USS Constitution A Midshipman's Pocket Manual 1814
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Eric L. Clements and Eric L. Clements
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This manual collates authentic period sources including design notes and information for sailors to provide a unique guide to this famous warship.Launched in 1797, USS Constitution is a wooden-hulled, three-masted heavy frigate of the United States Navy. She is renowned for her actions during the War of 1812 against the Britain, when she captured numerous merchant ships and defeated five British warships.The battle with HMS Guerriere earned her the nickname'Old Ironsides'and a longstanding public adoration that has repeatedly saved her from scrapping. She continued to serve as flagship in the Mediterranean and African squadrons, and circled the world in the 1840s. Retired from active service in 1881, Constitution served as a receiving ship until designated a museum ship in 1907. Comprising a series of documents and illustrations that give information on the building of the ship, her wartime service history and life on board ship during the years of her service, this fascinating book tells the story of Old Ironsides more...
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- 2017
139. Red, redder, reddest: SCUBA-2 imaging of colour-selected Herschel sources
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Douglas Scott, Peter Hurley, Helmut Dannerbauer, Andreas Efstathiou, Michael Zemcov, Lingyu Wang, Wayne S. Holland, G. de Zotti, M. Symeonidis, Julie Wardlow, Glen Petitpas, Mark Sargent, James Dunlop, Joaquin Vieira, James E. Geach, Lucia Marchetti, Stephen M. Wilkins, Jillian M. Scudder, Scott Chapman, Mattia Vaccari, Seb Oliver, Duncan Farrah, S. Duivenvoorden, Stephen Anthony Eales, Kristen Coppin, Dominik Riechers, David L. Clements, Asantha Cooray, V. Buat, Rob Ivison, J. Greenslade, Laboratoire d'Astrophysique de Marseille (LAM), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), Systems, Control and Applied Analysis, and Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS) more...
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galaxies: starburst ,Astrophysics ,01 natural sciences ,galaxies: high-redshift ,Astrophysics::Solar and Stellar Astrophysics ,NUMBER COUNTS ,010303 astronomy & astrophysics ,ComputingMilieux_MISCELLANEOUS ,Photometric redshift ,QB ,Physics ,DEGREE EXTRAGALACTIC SURVEY ,[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] ,Galaxies [Infrared] ,STAR-FORMATION HISTORY ,Physical Sciences ,Spectral energy distribution ,Galaxies [Submillimetre] ,submillimetre: galaxies ,MU-M ,FOS: Physical sciences ,Astrophysics::Cosmology and Extragalactic Astrophysics ,SPECTRAL ENERGY-DISTRIBUTIONS ,Astronomy & Astrophysics ,0103 physical sciences ,Galaxy formation and evolution ,DEEP FIELD-SOUTH ,Astrophysics::Galaxy Astrophysics ,Luminous infrared galaxy ,Science & Technology ,Cross-correlation ,SUBMILLIMETER GALAXIES ,010308 nuclear & particles physics ,Star formation ,Astronomy and Astrophysics ,Infrared: galaxies ,Starburst [Galaxies] ,Astrophysics - Astrophysics of Galaxies ,Redshift ,Galaxy ,0201 Astronomical And Space Sciences ,13. Climate action ,Space and Planetary Science ,[SDU]Sciences of the Universe [physics] ,Astrophysics of Galaxies (astro-ph.GA) ,CROSS-CORRELATION ,HIGH-REDSHIFT ,[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] ,High-redshift [Galaxies] ,COSMOLOGY LEGACY SURVEY - Abstract
High-redshift, luminous, dusty star forming galaxies (DSFGs) constrain the extremity of galaxy formation theories. The most extreme are discovered through follow-up on candidates in large area surveys. Here we present 850 $\mu$m SCUBA-2 follow-up observations of 188 red DSFG candidates from the \textit{Herschel} Multi-tiered Extragalactic Survey (HerMES) Large Mode Survey, covering 274 deg$^2$. We detected 87 per cent with a signal-to-noise ratio $>$ 3 at 850~$\mu$m. We introduce a new method for incorporating the confusion noise in our spectral energy distribution fitting by sampling correlated flux density fluctuations from a confusion limited map. The new 850~$\mu$m data provide a better constraint on the photometric redshifts of the candidates, with photometric redshift errors decreasing from $\sigma_z/(1+z)\approx0.21$ to $0.15$. Comparison spectroscopic redshifts also found little bias ($\langle (z-z_{\rm spec})/(1+z_{\rm spec})\rangle = 0.08 $). The mean photometric redshift is found to be 3.6 with a dispersion of $0.4$ and we identify 21 DSFGs with a high probability of lying at $z > 4$. After simulating our selection effects we find number counts are consistent with phenomenological galaxy evolution models. There is a statistically significant excess of WISE-1 and SDSS sources near our red galaxies, giving a strong indication that lensing may explain some of the apparently extreme objects. Nevertheless, our sample should include examples of galaxies with the highest star formation rates in the Universe ($\gg10^3$ M$_\odot$yr$^{-1}$)., Comment: 22 pages, 14 figures and 3 tables more...
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- 2018
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140. The Application of NHEJ-CRISPR/Cas9 and Cre-Lox System in the Generation of Bivalent Duck Enteritis Virus Vaccine against Avian Influenza Virus
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Juliet E. Bryant, Na Tang, Pengxiang Chang, Sushant Bhat, Joshua E. Sealy, Muhammad Munir, Munir Iqbal, Yongxiu Yao, Anabel L Clements, and Jean-Remy Sadeyen
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0301 basic medicine ,DNA End-Joining Repair ,animal structures ,viruses ,Genetic Vectors ,lcsh:QR1-502 ,Biology ,medicine.disease_cause ,Genome ,Article ,Virus ,lcsh:Microbiology ,Cell Line ,Viral vector ,03 medical and health sciences ,Plasmid ,INDEL Mutation ,Genes, Reporter ,Virology ,medicine ,Animals ,CRISPR ,Gene Knock-In Techniques ,duck enteritis virus ,Homologous Recombination ,CRISPR/Cas9 ,NHEJ ,Integrases ,Cas9 ,Lox ,Cre ,influenza ,Influenza A virus subtype H5N1 ,3. Good health ,Mardivirus ,030104 developmental biology ,Infectious Diseases ,Influenza A virus ,Influenza Vaccines ,Expression cassette ,CRISPR-Cas Systems ,RNA, Guide, Kinetoplastida - Abstract
Duck-targeted vaccines to protect against avian influenza are critically needed to aid in influenza disease control efforts in regions where ducks are endemic for highly pathogenic avian influenza (HPAI). Duck enteritis virus (DEV) is a promising candidate viral vector for development of vaccines targeting ducks, owing to its large genome and narrow host range. The clustered regularly interspaced palindromic repeats (CRISPR)/Cas9 system is a versatile gene-editing tool that has proven beneficial for gene modification and construction of recombinant DNA viral vectored vaccines. Currently, there are two commonly used methods for gene insertion: non-homologous end-joining (NHEJ) and homology-directed repair (HDR). Owing to its advantages in efficiency and independence from molecular requirements of the homologous arms, we utilized NHEJ-dependent CRISPR/Cas9 to insert the influenza hemagglutinin (HA) antigen expression cassette into the DEV genome. The insert was initially tagged with reporter green fluorescence protein (GFP), and a Cre-Lox system was later used to remove the GFP gene insert. Furthermore, a universal donor plasmid system was established by introducing double bait sequences that were independent of the viral genome. In summary, we provide proof of principle for generating recombinant DEV viral vectored vaccines against the influenza virus using an integrated NHEJ-CRISPR/Cas9 and Cre-Lox system. more...
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- 2018
141. The strong gravitationally lensed Herschel galaxy HLock01: optical spectroscopy reveals a close galaxy merger with evidence of inflowing gas
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P. Martinez-Navajas, C. Jiménez-Ángel, Dimitra Rigopoulou, Julie Wardlow, Rui Marques-Chaves, Douglas Scott, Raphael Gavazzi, Ismael Perez-Fournon, Dominik A. Riechers, Yiping Shu, Duncan Farrah, Seb Oliver, Rob Ivison, Alain Omont, David L. Clements, Hooshang Nayyeri, Antonio Cabrera-Lavers, and Asantha Cooray more...
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SIMILAR-TO 2 ,0306 Physical Chemistry (Incl. Structural) ,FOS: Physical sciences ,galaxies: starburst ,Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Galaxy merger ,Astronomy & Astrophysics ,01 natural sciences ,0305 Organic Chemistry ,HIGH-REDSHIFT GALAXIES ,Apparent magnitude ,0103 physical sciences ,Satellite galaxy ,STAR-FORMING GALAXIES ,Astrophysics::Solar and Stellar Astrophysics ,INTEGRAL FIELD SPECTROSCOPY ,010303 astronomy & astrophysics ,Astrophysics::Galaxy Astrophysics ,QB ,Physics ,Science & Technology ,SUBMILLIMETER GALAXIES ,010308 nuclear & particles physics ,gravitational lensing: strong ,Astronomy and Astrophysics ,HUBBLE-SPACE-TELESCOPE ,Astrophysics - Astrophysics of Galaxies ,Redshift ,Galaxy ,Stars ,3RD DATA RELEASE ,ULTRAVIOLET-SPECTRUM ,0201 Astronomical And Space Sciences ,Gravitational lens ,LYMAN-BREAK GALAXIES ,Space and Planetary Science ,Astrophysics of Galaxies (astro-ph.GA) ,cosmology: observations ,Physical Sciences ,DIGITAL SKY SURVEY ,Impact parameter ,galaxies: evolution ,galaxies: individual (HLock01) - Abstract
The submillimeter galaxy (SMG) HERMES J105751.1+573027 (hereafter HLock01) at z = 2.9574 +/- 0.0001 is one of the brightest gravitationally lensed sources discovered in the Herschel Multi-tiered Extragalactic Survey. Apart from the high flux densities in the far-infrared, it is also extremely bright in the rest-frame ultraviolet (UV), with a total apparent magnitude m_UV = 19.7 mag. We report here deep spectroscopic observations with the Gran Telescopio Canarias of the optically bright lensed images of HLock01. Our results suggest that HLock01 is a merger system composed of the Herschel-selected SMG and an optically bright Lyman break-like galaxy (LBG), separated by only 3.3 kpc in projection. While the SMG appears very massive (M* = 5x10^11 Msun), with a highly extinguished stellar component (A_V = 4.3), the LBG is a young, lower-mass (M* = 1x10^10 Msun), but still luminous (10xL*_UV) satellite galaxy. Detailed analysis of the high signal-to-noise (S/N) rest-frame UV spectrum of the LBG shows complex kinematics of the gas, exhibiting both blueshifted and redshifted absorption components. While the blueshifted component is associated with strong galactic outflows from the massive stars in the LBG, as is common in most star-forming galaxies, the redshifted component may be associated with gas inflow seen along a favorable sightline to the LBG. We also find evidence of an extended gas reservoir around HLock01 at an impact parameter of 110 kpc, through the detection of C II 1334$\AA$ absorption in the red wing of a bright Ly-alpha emitter at z = 3.327. The data presented here highlight the power of gravitational lensing in high S/N studies to probe deeply into the physics of high-z star forming galaxies., Comment: 24 pages, 11 figures. Accepted for publication in ApJ more...
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- 2018
142. The causes of the red sequence, the blue cloud, the green valley, and the green mountain
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Matthew Smith, Stephen Anthony Eales, Paul van der Werf, Malcolm N. Bremer, Maritza A. Lara-López, Maarten Baes, Simon Dye, Simon P. Driver, Angus H. Wright, Jon Loveday, Michael J. I. Brown, Rob Ivison, Pieter De Vis, Steve Maddox, Christopher J. R. Clark, Elisabetta Valiante, Benne W. Holwerda, Cristina Furlanetto, Aaron S. G. Robotham, Loretta Dunne, David L. Clements, Lee S. Kelvin, Steven Phillipps, Daniel J. Smith, Nathan Bourne, Lerothodi Leonard Leeuw, Michał J. Michałowski, University of St Andrews. School of Physics and Astronomy, Science and Technology Facilities Council (STFC), and Science and Technology Facilities Council more...
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Absolute magnitude ,Astrophysics ,01 natural sciences ,Luminosity ,QB Astronomy ,Astrophysics::Solar and Stellar Astrophysics ,010303 astronomy & astrophysics ,QC ,Malmquist bias ,QB ,Physics ,education.field_of_study ,general [Galaxies] ,3rd-DAS ,ATLAS DATA RELEASE ,Physical Sciences ,LATE-TYPE GALAXIES ,ANGULAR-MOMENTUM ,galaxies: evolution ,Stellar mass ,GAMA ,Population ,FOS: Physical sciences ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astronomy & Astrophysics ,MASS ,STAR-FORMATION ,0103 physical sciences ,education ,Astrophysics::Galaxy Astrophysics ,Science & Technology ,010308 nuclear & particles physics ,Star formation ,Diagram ,HERSCHEL-ATLAS ,COUNTERPARTS ,Astronomy and Astrophysics ,MULTIWAVELENGTH ,evolution [Galaxies] ,Astrophysics - Astrophysics of Galaxies ,galaxies: general ,EVOLUTION ,Galaxy ,0201 Astronomical And Space Sciences ,QC Physics ,Physics and Astronomy ,Space and Planetary Science ,Astrophysics of Galaxies (astro-ph.GA) - Abstract
The galaxies found in optical surveys fall in two distinct regions of a diagram of optical colour versus absolute magnitude: the red sequence and the blue cloud with the green valley in between. We show that the galaxies found in a submillimetre survey have almost the opposite distribution in this diagram, forming a `green mountain'. We show that these distinctive distributions follow naturally from a single, continuous, curved Galaxy Sequence in a diagram of specific star-formation rate versus stellar mass without there being the need for a separate star-forming galaxy Main Sequence and region of passive galaxies. The cause of the red sequence and the blue cloud is the geometric mapping between stellar mass/specific star-formation rate and absolute magnitude/colour, which distorts a continuous Galaxy Sequence in the diagram of intrinsic properties into a bimodal distribution in the diagram of observed properties. The cause of the green mountain is Malmquist bias in the submillimetre waveband, with submillimetre surveys tending to select galaxies on the curve of the Galaxy Sequence, which have the highest ratios of submillimetre-to-optical luminosity. This effect, working in reverse, causes galaxies on the curve of the Galaxy Sequence to be underrepresented in optical samples, deepening the green valley. The green valley is therefore not evidence (1) for there being two distinct populations of galaxies, (2) for galaxies in this region evolving more quickly than galaxies in the blue cloud and the red sequence, (c) for rapid quenching processes in the galaxy population., Comment: Accepted by Monthly Notices of the Royal Astronomical Society more...
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- 2018
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143. Size-Differentiated Chemical Composition of Re-Suspended Soil Dust from the Desert Southwest United States
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Paul A. Solomon, Michael Sundblom, Nabin Upadhyay, Andrea L. Clements, Pierre Herckes, and Matthew P. Fraser
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Continental crust ,Environmental engineering ,Soil classification ,Particulates ,complex mixtures ,Pollution ,Environmental chemistry ,Soil water ,Feedlot ,Environmental Chemistry ,Environmental science ,Composition (visual arts) ,Chemical composition ,Dirt road - Abstract
As part of the Desert Southwest Coarse Particulate Matter Study which characterized the composition of fine and coarse particulate matter in Pinal County, AZ during 2010-2011, several source samples were collected from several different soil types to assist in source apportionment analysis of the study results. Soil types included native desert soils, agricultural soils (crop farming), dirt-road material adjacent to agricultural areas, paved road dusts, dirt road material from within and adjacent to a cattle feedlot, and material from an active cattle feedlot. Following laboratory resuspension of the soil, sizesegregated PM_(2.5) and PM_(10) fractions for each source type were collected on filters and characterized for mass, ions, OC, EC, and trace elements. While there are unique chemical compositions of soils in the region (e.g., high As and Sb) that reiterate the importance of using local source profiles (e.g., native soils) as compared to Upper Continental Crust or soil profiles from other regions in receptor modeling studies. The study also provides new insights into the impact of land-use modification on source emission profiles. Specifically, high OC and PO_4 ^(3-) are found in material representative of local cattle feedlot activities while elevated Cu, Sb and Zn are found from sources impacted by motor vehicle traffic. Results of the study indicate that the local native soil composition is only slightly modified by agricultural activities and this study provides the chemical composition of both native and agricultural soil for source apportionment studies in the Desert Southwest. more...
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- 2015
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144. Establishing a Link Between Interpreting the Evolution of a Landscape and Landscape Management Practices
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Terry L. Clements
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- 2017
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145. The AKARI Deep Field South: Pushing to High Redshift
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David L. Clements
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Physics ,Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,Field (physics) ,Hubble Deep Field ,astro-ph.GA ,FOS: Physical sciences ,Astronomy ,General Medicine ,Astrophysics - Astrophysics of Galaxies ,Galaxy ,Redshift ,Wavelength ,Astrophysics of Galaxies (astro-ph.GA) ,astro-ph.CO ,Selection (genetic algorithm) ,Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
The AKARI Deep Field South (ADF-S) is a large extragalactic survey field that is covered by multiple instruments, from optical to far-IR and radio. I summarise recent results in this and related fields prompted by the release of the Herschel far-IR/submm images, including studies of cold dust in nearby galaxies, the identification of strongly lensed distant galaxies, and the use of colour selection to find candidate very high redshift sources. I conclude that the potential for significant new results from the ADF-S is very great. The addition of new wavelength bands in the future, eg. from Euclid, SKA, ALMA and elsewhere, will boost the importance of this field still further., Comment: Invited review from the Third AKARI Conference; Accepted for publication in Publications of the Korean Astronomical Society more...
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- 2017
146. Ultra-Red Galaxies Signpost Candidate Proto-Clusters at High Redshift
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Axel Weiss, M. Bremer, A. Omont, Elisabetta Valiante, G. de Zotti, V. Arumugam, S. J. Maddox, S. J. Oliver, P. N. Best, Steve Eales, Julie Wardlow, I. Oteo, Loretta Dunne, Julian M Simpson, A. J. R. Lewis, P. van der Werf, Steve Serjeant, Scott Chapman, Z-Y. Zhang, Helmut Dannerbauer, Rob Ivison, D. L. Clements, Dominik Riechers, Science and Technology Facilities Council (STFC), and Science and Technology Facilities Council more...
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submillimeter: galaxies ,0306 Physical Chemistry (Incl. Structural) ,media_common.quotation_subject ,MU-M ,FOS: Physical sciences ,galaxies [submillimeter] ,galaxies: starburst ,RADIO GALAXIES ,Astrophysics ,Astronomy & Astrophysics ,01 natural sciences ,0305 Organic Chemistry ,galaxies [infrared] ,infrared: galaxies ,Photometry (optics) ,galaxies: high-redshift ,BOLOMETER CAMERA ,0103 physical sciences ,STAR-FORMING GALAXIES ,clusters: general [galaxies] ,MIDINFRARED COUNTERPARTS ,NUMBER COUNTS ,010303 astronomy & astrophysics ,Galaxy cluster ,media_common ,Photometric redshift ,Physics ,DEGREE EXTRAGALACTIC SURVEY ,Science & Technology ,SUBMILLIMETER GALAXIES ,010308 nuclear & particles physics ,starburst [galaxies] ,Astronomy and Astrophysics ,Astrophysics - Astrophysics of Galaxies ,Redshift ,Galaxy ,Universe ,0201 Astronomical And Space Sciences ,Space and Planetary Science ,galaxies: clusters: general ,Astrophysics of Galaxies (astro-ph.GA) ,Physical Sciences ,DENSITY RELATION ,DEEP-FIELD-SOUTH ,high-redshift [galaxies] - Abstract
We present images obtained with LABOCA on the APEX telescope of a sample of 22 galaxies selected via their red Herschel SPIRE 250-, 350- and $500\textrm{-}\mu\textrm{m}$ colors. We aim to see if these luminous, rare and distant galaxies are signposting dense regions in the early Universe. Our $870\textrm{-}\mu\textrm{m}$ survey covers an area of $\approx0.8\,\textrm{deg}^2$ down to an average r.m.s. of $3.9\,\textrm{mJy beam}^{-1}$, with our five deepest maps going $\approx2\times$ deeper still. We catalog 86 DSFGs around our 'signposts', detected above a significance of $3.5\sigma$. This implies a $100\pm30\%$ over-density of $S_{870}>8.5\,\textrm{mJy}$ DSFGs, excluding our signposts, when comparing our number counts to those in 'blank fields'. Thus, we are $99.93\%$ confident that our signposts are pinpointing over-dense regions in the Universe, and $\approx95\%$ confident that these regions are over-dense by a factor of at least $\ge1.5\times$. Using template SEDs and SPIRE/LABOCA photometry we derive a median photometric redshift of $z=3.2\pm0.2$ for our signposts, with an interquartile range of $z=2.8\textrm{-}3.6$. We constrain the DSFGs likely responsible for this over-density to within $|\Delta z|\le0.65$ of their respective signposts. These 'associated' DSFGs are radially distributed within $1.6\pm0.5\,\textrm{Mpc}$ of their signposts, have median SFRs of $\approx(1.0\pm0.2)\times10^3\,M_{\odot}\,\textrm{yr}^{-1}$ (for a Salpeter stellar IMF) and median gas reservoirs of $\sim1.7\times10^{11}\,M_{\odot}$. These candidate proto-clusters have average total SFRs of at least $\approx (2.3\pm0.5)\times10^3\,M_{\odot}\,\textrm{yr}^{-1}$ and space densities of $\sim9\times10^{-7}\,\textrm{Mpc}^{-3}$, consistent with the idea that their constituents may evolve to become massive ETGs in the centers of the rich galaxy clusters we see today., Comment: 24 pages, 13 figures, 5 tables, submitted for publication in ApJ more...
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147. Cyber Deterrence and Stability
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Rustam Goychayev, Geoffrey A. Carr, Rachel A. Weise, David A. Donnelly, Samuel L. Clements, Jacob M. Benz, Kabrena E. Rodda, Rachel A. Bartholomew, Archibald D. McKinnon, and Richard B. Andres
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- 2017
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148. Stacked average far-infrared spectrum of dusty star-forming galaxies from the Herschel/SPIRE Fourier Transform Spectrometer
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Michał J. Michałowski, Georgios E. Magdis, Chris P. Pearson, Gianfranco De Zotti, Duncan Farrah, Dimitra Rigopoulou, Matteo Bonato, Asantha Cooray, Julie Wardlow, Charles M. Bradford, Ivan Valtchanov, Derek Wilson, David L. Clements, Lingyu Wang, Hooshang Nayyeri, Tanio Díaz-Santos, and Astronomy more...
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Infrared ,APM 08279+5255 ,0306 Physical Chemistry (Incl. Structural) ,Milky Way ,FOS: Physical sciences ,Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astronomy & Astrophysics ,PHOTODISSOCIATION REGIONS ,01 natural sciences ,7. Clean energy ,0305 Organic Chemistry ,Spectral line ,Luminosity ,C-II LINE ,Far infrared ,galaxies: high-redshift ,0103 physical sciences ,BRIGHT GALAXIES ,Astrophysics::Solar and Stellar Astrophysics ,NEARBY GALAXIES ,010303 astronomy & astrophysics ,Astrophysics::Galaxy Astrophysics ,ISM: general ,Physics ,Science & Technology ,INTERSTELLAR-MEDIUM ,010308 nuclear & particles physics ,Astrophysics::Instrumentation and Methods for Astrophysics ,Astronomy and Astrophysics ,Astrophysics - Astrophysics of Galaxies ,LENSED SUBMILLIMETER GALAXIES ,Galaxy ,Redshift ,MOLECULAR GAS ,Interstellar medium ,HOST GALAXIES ,0201 Astronomical And Space Sciences ,13. Climate action ,Space and Planetary Science ,Astrophysics of Galaxies (astro-ph.GA) ,Physical Sciences ,Astrophysics::Earth and Planetary Astrophysics ,HIGH-REDSHIFT ,galaxies: ISM - Abstract
We present stacked average far-infrared spectra of a sample of 197 dusty, star-forming galaxies (DSFGs) at $0.005 < z < 4$ using close to 90% of the SPIRE Fourier Transform Spectrometer (FTS) extragalactic data archive from the Herschel Space Observatory based on 3.5 years of science operations. These spectra explore an observed-frame $\rm 447\,GHz-1568\,GHz$ ($\rm 191\,��m-671\,��m$) frequency (wavelength) range allowing us to observe the main atomic and molecular lines emitted by gas in the interstellar medium. The sample is sub-divided into five redshift bins at $0.005 < z < 0.05$, $0.05 < z < 0.2$, $0.2 < z < 0.5$, $0.8 < z, 30 pages, 19 figures more...
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- 2017
149. Do denture processing techniques affect the mechanical properties of denture teeth?
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Antheunis Versluis, Daranee Tantbirojn, David R. Cagna, and Jody L. Clements
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Dental Stress Analysis ,Denture Bases ,Materials science ,Chemical Phenomena ,Compressive Strength ,medicine.medical_treatment ,Acrylic Resins ,Compression molding ,Tooth Fracture ,02 engineering and technology ,Bending ,Injections ,03 medical and health sciences ,Dental Materials ,0302 clinical medicine ,stomatognathic system ,Elastic Modulus ,Materials Testing ,medicine ,Pressure ,Humans ,Denture Design ,Elastic modulus ,Acrylic resin ,Dentures ,Orthodontics ,Analysis of Variance ,Chemistry, Physical ,technology, industry, and agriculture ,030206 dentistry ,021001 nanoscience & nanotechnology ,stomatognathic diseases ,Compressive strength ,visual_art ,visual_art.visual_art_medium ,Stress, Mechanical ,Oral Surgery ,0210 nano-technology - Abstract
Statement of problem Denture tooth fracture may limit the longevity of dental prostheses. Whether the strength of the denture tooth material is affected by the denture processing technique is unclear. Purpose The purpose of this in vitro study was to investigate whether the denture processing technique affects the mechanical properties of denture tooth materials. Material and methods Two denture processing techniques, injection and compression molding, were tested for 3 types of denture teeth: nanohybrid composite (NHC), interpenetrating network (IPN), and microfiller-reinforced polyacrylic (MRP). Denture teeth were processed by using an injection-molded resin or a compression-molded resin. Unprocessed denture teeth served as the control. After teeth were processed, they were sectioned into rectangular beams for 3-point bend testing (n=20 to 24). Elastic moduli were determined from load deflection and maximum stress from maximum bending load. The results were statistically analyzed by using 2-way ANOVA and multiple comparisons (α=.05). Results The processing technique and the type of denture tooth affected both the elastic modulus and the maximum stress. The injection-molded technique resulted in significantly higher (24% to 26%) elastic modulus for NHC and IPN (12% higher in MRP, but not statistically significant) and higher (12% to 17%) maximum stresses for IPN and MRP (3% lower in NHC, but not statistically significant). Compression-molded technique increased the elastic modulus of IPN and NHC by 10% to 17% (3% lower in MRP but not statistically significant), but maximum stresses were not statistically significantly different in any of the tested teeth. Regardless of processing, MRP teeth had the highest elastic modulus (8.0 to 9.2 GPa) but the lowest maximum stresses (97 to 124 MPa), whereas IPN teeth had the lowest elastic modulus (5.5 GPa) but high or highest maximum stress (171 to 192 MPa). Conclusions The injection-molded technique significantly increased the elastic modulus of NHC and IPN teeth and significantly increased the maximum stress of IPN teeth. The compression-molded technique did not significantly affect mechanical properties of denture teeth. more...
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150. Previvors’ Perceptions of Hereditary Breast and Ovarian Cancer Health-related Information
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Marleah Dean, Rachel Koruo, Meredith L. Clements, Amy A. Ross, and Courtney L. Scherr
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Oncology ,medicine.medical_specialty ,business.industry ,Internal medicine ,medicine ,Health related information ,Hereditary Cancer ,General Medicine ,Health information ,business ,Ovarian cancer ,medicine.disease - Abstract
The purpose of this study is to identify female previvors’ perceptions of hereditary breast and ovarian cancer (HBOC) health-related information. Previvors are individuals who have tested positive for a harmful BRCA genetic mutation, which increases their lifetime risk for HBOC, but who have never been diagnosed with cancer. As a part of a larger research project where 25 qualitative interviews were conducted, this manuscript reports on the analysis of ten interviews which are most relevant to the research focus. Using the constant comparative method, themes were created and developed from the interview data. The results indicate previvors view information as a source of power. These women reported feeling personally responsible for seeking and sharing information, while also relying on medical professionals to provide credible sources of information. Furthermore, previvors emphasized a desire for medical professionals to be more informed about BRCA in order to assist them in making personal health decisions. This study presents the perceptions regarding HBOC information as reported by this population of previvors. The findings indicate that information is not provided in an organized way relative to their specific needs. Therefore, the authors recommend an educational intervention tool for previvors and their medical professionals. KEYWORDS: BRCA; Communication; Qualitative; Hereditary Cancer; Health Experiences; Previvors; Medicine; Patient Perspectives; Health Information more...
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