Author: "Colin Ross" - Searchworks@Jio Institute Digital Library Search Results

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115 results on '"Colin Ross"'

1. A study of ECT on 278 children and adolescents; methodological, conceptual, and ethical concerns

Author: John Read, Colin Ross, and Sami Timimi
Subjects: adolescents, adverse effects, electroconvulsive therapy, memory loss, ethics, polypharmacy, Neurosciences. Biological psychiatry. Neuropsychiatry, RC321-571
Published: 2023
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2. A prospective study to explore the relationship between MTHFR C677T genotype, physiological folate levels, and postpartum psychopathology in at-risk women.

Author: Emily Morris, Catriona Hippman, Arianne Albert, Caitlin Slomp, Angela Inglis, Prescilla Carrion, Rolan Batallones, Heather Andrighetti, Colin Ross, Roger Dyer, William Honer, and Jehannine Austin
Subjects: Medicine, Science
Abstract: BackgroundThe etiology of postpartum psychopathologies are not well understood, but folate metabolism pathways are of potential interest. Demands for folate increase dramatically during pregnancy, low folate level has been associated with psychiatric disorders, and supplementation may improve symptomatology. The MTHFR C677T variant influences folate metabolism and has been implicated in depression during pregnancy.ObjectiveTo conduct a prospective longitudinal study to explore the relationship between MTHFR C677T genotype, folate levels, and postpartum psychopathology in at-risk women.HypothesisIn the first three months postpartum, folate will moderate a relationship between MTHFR genotype and depression, with TT homozygous women having more symptoms than CC homozygous women.MethodsWe recruited 365 pregnant women with a history of mood or psychotic disorder, and at 3 postpartum timepoints, administered the Edinburgh Postnatal Depression Scale (EPDS); Clinician-Administered Rating Scale for Mania (CARS-M) and the Positive and Negative Symptom Scale (PANSS) and drew blood for genotype/folate level analysis. We used robust linear regression to investigate interactions between genotype and folate level on the highest EPDS and CARS-M scores, and logistic regression to explore interactions with PANSS psychosis scores above/below cut-off.ResultsThere was no significant interaction effect between MTHFR genotype and folate level on highest EPDS (p = 0.36), but there was a significant interaction between genotype, folate level and log(CARS-M) (p = 0.02); post-hoc analyses revealed differences in the effect of folate level between CC/CT, and TT genotypes, with folate level in CC and CT having an inverse relationship with symptoms of mania, while there was no relationship in participants with TT genotype. There was no significant interaction between MTHFR genotype and folate level on the likelihood of meeting positive symptom criteria for psychosis on the PANSS (p = 0.86).DiscussionThese data suggest that perhaps there is a relationship between MTHFR C677T, folate level and some symptoms of postpartum psychopathology.
Published: 2020
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3. Alterations of plasma lipids in mice via adenoviral-mediated hepatic overexpression of human ABCA1

Author: Cheryl L. Wellington, Liam R. Brunham, Steven Zhou, Roshni R. Singaraja, Henk Visscher, Allison Gelfer, Colin Ross, Erick James, Guoqing Liu, Mary T. Huber, Yu-Zhou Yang, Robin J. Parks, Albert Groen, Jamila Fruchart-Najib, and Michael R. Hayden
Subjects: ATP binding cassette transporter A1, HDL cholesterol, adenovirus, bacterial artificial chromosome transgenic, hepatocytes, regulation, Biochemistry, QD415-436
Abstract: ATP binding cassette transporter A1 (ABCA1) is a widely expressed lipid transporter essential for the generation of HDL. ABCA1 is particularly abundant in the liver, suggesting that the liver may play a major role in HDL homeostasis. To determine how hepatic ABCA1 affects plasma HDL cholesterol levels, we treated mice with an adenovirus (Ad)-expressing human ABCA1 under the control of the cytomegalovirus promoter. Treated mice showed a dose-dependent increase in hepatic ABCA1 protein, ranging from 1.2-fold to 8.3-fold using doses from 5 × 108 to 1.5 × 109 pfu, with maximal expression observed on Day 3 posttreatment. A selective increase in HDL cholesterol occurred at Day 3 in mice treated with 5 × 108 pfu Ad-ABCA1, but higher doses did not further elevate HDL cholesterol levels. In contrast, total cholesterol, triglycerides, phospholipids, non-HDL cholesterol, and apolipoprotein B levels all increased in a dose-dependent manner, suggesting that excessive overexpression of hepatic ABCA1 in the absence of its normal regulatory sequences altered total lipid homeostasis. At comparable expression levels, bacterial artificial chromosome transgenic mice, which express ABCA1 under the control of its endogenous regulatory sequences, showed a greater and more specific increase in HDL cholesterol than Ad-ABCA1-treated mice.Our results suggest that appropriate regulation of ABCA1 is critical for a selective increase in HDL cholesterol levels.
Published: 2003
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4. Pharmacogenetic-based efavirenz dose modification: suggestions for an African population and the different CYP2B6 genotypes.

Author: Jackson K Mukonzo, Joel S Owen, Jasper Ogwal-Okeng, Ronald B Kuteesa, Sarah Nanzigu, Nelson Sewankambo, Lehana Thabane, Lars L Gustafsson, Colin Ross, and Eleni Aklillu
Subjects: Medicine, Science
Abstract: Pharmacogenetics contributes to inter-individual variability in pharmacokinetics (PK) of efavirenz (EFV), leading to variations in both efficacy and toxicity. The purpose of this study was to assess the effect of genetic factors on EFV pharmacokinetics, treatment outcomes and genotype based EFV dose recommendations for adult HIV-1 infected Ugandans.In total, 556 steady-state plasma EFV concentrations from 99 HIV infected patients (64 female) treated with EFV/lamivudine/zidovidine were analyzed. Patient genotypes for CYP2B6 (*6 & *11), CYP3A5 (*3,*6 & *7) and ABCB1 c.4046A>G, baseline biochemistries and CD4 and viral load change from baseline were determined. A one-compartment population PK model with first-order absorption (NONMEM) was used to estimate genotype effects on EFV pharmacokinetics. PK simulations were performed based upon population genotype frequencies. Predicted AUCs were compared between the product label and simulations for doses of 300 mg, 450 mg, and 600 mg.EFV apparent clearance (CL/F) was 2.2 and 1.74 fold higher in CYP2B6*6 (*1/*1) and CYP2B6*6 (*1/*6) compared CYP2B6*6 (*6/*6) carriers, while a 22% increase in F1 was observed for carriers of ABCB1 c.4046A>G variant allele. Higher mean AUC was attained in CYP2B6 *6/*6 genotypes compared to CYP2B6 *1/*1 (p40 copies/mL after 84 days of treatment. No trend with exposure was noted for these six patients.Results of this study suggest that daily doses of 450 mg and 300 mg might meet the EFV treatment needs of HIV-1 infected Ugandans in general and individuals homozygous for CYP2B6*6 mutation, respectively.
Published: 2014
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5. A clinical tool for reducing central nervous system depression among neonates exposed to codeine through breast milk.

Author: Lauren E Kelly, Shahnaz A Chaudhry, Michael J Rieder, Geert 't Jong, Myla E Moretti, Andrea Lausman, Colin Ross, Howard Berger, Bruce Carleton, Michael R Hayden, Parvaz Madadi, and Gideon Koren
Subjects: Medicine, Science
Abstract: Neonates are commonly exposed to maternal codeine through breast milk. Central Nervous System (CNS) depression has been reported in up to 24% of nurslings following codeine exposure. In 2009, we developed guidelines to improve the safety of codeine use during breastfeeding based on previously established pharmacogenetic and clinical risk factors. The primary objective of this study was to prospectively evaluate the effectiveness of these guidelines in ensuring neonatal safety.Women taking codeine for pain following caesarean section were given safety guidelines, including advice to use the lowest codeine dose for no longer than four days and to switch to a non-opioid when possible. Mothers provided a saliva sample for analysis of genes involved in opioid disposition, metabolism and response. A total of 238 consenting women participated. Neonatal sedation was reported in 2.1% (5/238) of breastfeeding women taking codeine according to our safety guidelines. This rate was eight fold lower than that reported in previous prospective studies. Women reporting sedated infants were taking codeine for a significantly longer period of time (4.80±2.59 days vs. 2.52±1.58 days, p = 0.0018). While following the codeine safety guidelines, mothers were less likely to supplement with formula, reported lower rates of sedation in themselves and breastfed more frequently throughout the day when compared to previously reported rates. Genotyping analysis of cytochrome p450 2D6 (CYP2D6), uridine-diphosphate glucuronosyltransferase (UGT) 2B7, p-glycoprotein (ABCB1), the mu-opioid receptor (OPRM1) and catechol-o-demethyltransferase (COMT) did not predict codeine response in breastfeeding mother/infant pairs when following the safety guidelines.The only cases of CNS depression occurred when the length of codeine use exceeded the guideline recommendations. Neonatal safety of codeine can be improved using evidence-based guidelines, even in those deemed by genetics to be at high risk for toxicity.
Published: 2013
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6. Sidérurgie

Author: Guilleaume Venator, Colin Ross, Guilleaume Venator, Colin Ross
Published: 2020

7. Metallurgy of iron

Author: William Venator, Colin Ross, William Venator, Colin Ross
Published: 2019

8. Südamerika, die aufsteigende Welt

Author: Colin Ross
Published: 2020

9. The Osiris Complex: Case Studies in Multiple Personality Disorder

Author: Colin Ross
Published: 2019

10. Characterisation of PtMo and PtW electrocatalysts for fuel cells using in-situ XAS and INS techniques

Author: King, Colin Ross
Subjects: 621.312429
Abstract: The continuing development of catalysts for hydrogen oxidation in Polymer Electrolyte Membrane Fuel Cells (PEMFCs) requires a greater understanding of the catalyst structure and how this relates to the performance, as well as knowledge of the mechanism taking place. The electrocatalytic activity of a series of carbon supported PtMo and PtW anode catalysts towards the electro-oxidation of CO and oxidation of methanol was studied. An in-situ X-ray Absorption Spectroscopy (XAS) mini cell was used in order to obtain data using fluorescence detection. It was found that catalysts prepared by the co-deposited method were the most well-mixed, although not at all alloyed, with the samples consisting of Pt-rich cores with oxides of the secondary metal being prominent at the surface. Operating conditions were seen to be significant, with the co-deposited PtMo samples capable of being oxidised with potential in both half cell and mini cell conditions. A PtMo catalyst with a 2: 1 ratio had the highest activity for hydrogen oxidation when operating with reformate fuel streams. Preparation of a surface modified PtMo/C catalyst was achieved using an organometallic precursor and found to offer good control of the deposition of the Mo. Inelastic Neutron Scattering (INS) studies were carried out on Pt and PtMo-based electrocatalysts to investigate the interactions of the H₂ molecule and hydrogen and carbon monoxide modified surfaces. For the Pt/C catalyst it was found that the hydrogen atoms are located predominantly in hollow (three-fold) sites on Pt(111), with some contribution from hydrogen on multi-fold adsorption sites on a Pt(110) plane. Dihydrogen molecules were seen to interact strongly with the H/Pt surface for the Pt and PtMo based catalysts, while only a weak interaction was observed with the carbon monoxide-modified surface.
Published: 2007

11. Towards a practical ecclesiology for the Church of England

Author: McFadyen, Donald Colin Ross
Subjects: 200
Published: 2006

12. A study of ECT on 278 children and adolescents; methodological, conceptual, and ethical concerns

Author: John Read, Colin Ross, and Sami Timimi
Subjects: Behavioral Neuroscience
Published: 2022

13. Noninvasive testing for mycophenolate exposure in children with renal transplant using urinary metabolomics

Author: Khalid Taha, Atul Sharma, Kristine Kroeker, Colin Ross, Bruce Carleton, David Wishart, Mara Medeiros, and Tom D. Blydt‐Hansen
Subjects: Transplantation, Pediatrics, Perinatology and Child Health
Abstract: Despite the common use of mycophenolate in pediatric renal transplantation, lack of effective therapeuic drug monitoring increases uncertainty over optimal drug exposure and risk for adverse reactions. This study aims to develop a novel urine test to estimate MPA exposure based using metabolomics.Urine samples obtained on the same day of MPA pharmacokinetic testing from two prospective cohorts of pediatric kidney transplant recipients were assayed for 133 unique metabolites by mass spectrometry. Partial least squares (PLS) discriminate analysis was used to develop a top 10 urinary metabolite classifier that estimates MPA exposure. An independent cohort was used to test pharmacodynamic validity for allograft inflammation (urinary CXCL10 levels) and eGFR ratio (12mo/1mo eGFR) at 1 year.Fifty-two urine samples from separate children (36.5% female, 12.0 ± 5.3 years at transplant) were evaluated at 1.6 ± 2.5 years post-transplant. Using all detected metabolites (n = 90), the classifier exhibited strong association with MPA AUC by principal component regression (r = 0.56, p .001) and PLS (r = 0.75, p .001). A practical classifier (top 10 metabolites; r = 0.64, p .001) retained similar accuracy after cross-validation (LOOCV; r = 0.52, p .001). When applied to an independent cohort (n = 97 patients, 1053 samples), estimated mean MPA exposure over Year 1 was inversely associated with mean urinary CXCL10:Cr (r = -0.28, 95% CI -0.45, -0.08) and exhibited a trend for association with eGFR ratio (r = 0.35, p = .07), over the same time period.This urinary metabolite classifier can estimate MPA exposure and correlates with allograft inflammation. Future studies with larger samples are required to validate and evaluate its clinical application.
Published: 2022

14. The multi-object adaptive optics system for the Gemini infra-red multi-object spectrograph

Author: Scott C. Chapman, Uriel Conod, Paolo Turri, Kate J. Jackson, Olivier Lardière, Suresh Sivanandam, David Andersen, Carlos M. Correia, Masen Lamb, Colin Ross, Gaetano Sivo, and Jean-Pierre Véran
Published: 2022

15. Abstract P2079: Rbl2 Regulates Cardiac Sensitivity To AnthracyclineChemotherapy

Author: Jingrui Chen, Peng Xia, Yadav Sapkota, Erika N Scott, Yuening A Liu, Melissa Hudson, Shahrad R Rassekh, Bruce C Carleton, Colin Ross, Eric Chow, and Zhaokang Cheng
Subjects: Physiology, Cardiology and Cardiovascular Medicine
Abstract: Anthracycline chemotherapies cause heart failure in a subset of cancer patients. Emerging evidence suggests that genetic factors might contribute to the interindividual variations in cardiac sensitivity to anthracyclines. We previously reported that the anthracycline doxorubicin (DOX) induces cardiotoxicity through activation of cyclin-dependent kinase 2 (CDK2). The aim of this study was to determine whether retinoblastoma-like 2 (RBL2/p130), an emerging CDK2 inhibitor, regulates CDK2 activity and anthracycline sensitivity in the heart. Here, we showed that loss of endogenous Rbl2 increased basal cardiac CDK2 activity. Mice lacking Rbl2 were more sensitive to DOX-induced cardiotoxicity, as evidenced by rapid deterioration of heart function and loss of heart mass. Disruption of Rbl2 exacerbated DOX-induced mitochondrial damage and cardiomyocyte apoptosis. Mechanistically, Rbl2 deficiency enhanced CDK2-dependent activation of forkhead box O1 (FOXO1), leading to upregulation of the pro-apoptotic protein Bim. Inhibition of CDK2 desensitized Rbl2-depleted cardiomyocytes to DOX. In wild-type cardiomyocytes, DOX exposure induced Rbl2 expression in a FOXO1-dependent manner. Importantly, human RBL2 gene single nucleotide polymorphism (rs17800727) was also associated with anthracycline cardiotoxicity in childhood cancer survivors. In conclusion, loss of Rbl2 provokes cardiac CDK2 activation, resulting in increased sensitivity to DOX-induced cardiotoxicity. Rbl2 is an endogenous CDK2 inhibitor in the heart and represses FOXO1-mediated pro-apoptotic gene expression. Our findings suggest that RBL2 could be used as a biomarker to predict the risk of cardiotoxicity in individual patient prior to initiation of anthracycline-based chemotherapy.
Published: 2022

16. A Novel Approach to Bio-Friendly Microplastic Extraction with Ascidians

Author: Yuntong Li, Rowan Ross, and Colin Ross
Subjects: General Medicine, General Chemistry
Abstract: Microplastic pollution in water is now recognized as a devastating problem by many organizations, such as the National Oceanic and Atmospheric Administration, with recent studies estimating that the average American consumes around 52,000 of these plastic, toxic particles a year. A successful solution for the extraction of microplastics from oceans must be feasible to be implemented on a large scale and bio-friendly to not further disrupt the environment. To this end, the efficacy of using filter feeders (Ascidians) as biofilters to reduce microplastic pollution was explored. The efficacy of this filtration method was evaluated by adding ascidians to saltwater tanks contaminated with microplastics (experimental group) and comparing the water’s plastic concentration over time against a control. Water samples were then systematically tested with a fluorescence-activating microscope and fluorescent scanner. Fluorescent microplastics were used which allowed for the collection of both quantitative and qualitative data. The samples from the experimental group demonstrated a 24.7% (29.64mg) reduction in microplastics within the first day and a 94.7% (113.64mg) decrease by day 4. The control group showed negligible deviation in microplastic concentration. It is concluded that the Ascidians filtered microplastics from water through their natural feeding and respiratory process. We extrapolate that a 1m x 1m x 1m cage of Ascidians would filter approximately 300g of microplastics every day. This research demonstrates that microplastic filtration with invertebrate filter feeders is an effective and feasible option for extracting microplastics from polluted water.
Published: 2022

17. Parvovirus infection alters the nucleolar structure

Author: Mattola, Salla, primary, Leclerc, Simon, additional, Hakanen, Satu, additional, Aho, Vesa, additional, Parrish, Colin Ross, additional, and Vihinen-Ranta, Maija, additional
Published: 2022
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18. Learning for Change

Author: Suet Lin Hung, Kwok-kin Fung, and Colin Ross
Published: 2021

19. A super-regenerative-oscillator wake-up receiver for underwater applications with improved PVT immunity

Author: Colin Ross, Ximing Fu, and Kamal El-Sankary
Subjects: Computer science, Transconductance, 020208 electrical & electronic engineering, 020206 networking & telecommunications, Biasing, 02 engineering and technology, Low-noise amplifier, Surfaces, Coatings and Films, CMOS, Hardware and Architecture, Signal Processing, Hardware_INTEGRATEDCIRCUITS, 0202 electrical engineering, electronic engineering, information engineering, Electronic engineering, Automatic gain control, Sensitivity (control systems), Underwater acoustic communication, Loop gain
Abstract: A novel super-regenerative wake-up receiver for underwater communication systems is presented. Optimized wake-up receiver design for underwater communications plays an important role in increasing the deployment duration of sensor nodes through reduced power consumption. In this work, the super-regenerative oscillator (SRO) based receiver is designed to receive 20 kHz underwater acoustic signal. To enable high sensitivity without compromising the loop gain, a novel current-reuse SRO architecture is proposed using adaptive bulk biasing to increase negative transconductance $$ - G_{m} $$ under the same biasing current with improved sensitivity and start-up time. Differential input transistors with dynamic threshold control techniques are used to increase input transconductance and improve the gain without the need of a front-end low noise amplifier. A differential switch-controlled charge-pump is adopted to provide the quenching mechanism for the SRO. Furthermore, additional digital automatic gain control, frequency-lock loop, and common mode feedback are designed to improve the SRO immunity under process–voltage–temperature variations. The proposed super-regenerative receiver is implemented in TSMC 180 nm CMOS technology with center frequency of 20 kHz. It achieves sensitivity of − 83 dBm with data rate of 100 kbps and power consumption of 114 μW.
Published: 2019

20. Optical design study for the 860 GHz first-light camera module of CCAT-p (Erratum)

Author: Doug W. Henke, Douglas I. Johnstone, Lewis Knee, Scott C. Chapman, Colin Ross, Michel Fich, Thomas Nikola, Steve K. Choi, Michael D. Niemack, Stephen C. Parshley, Gordon J. Stacey, and Eve M. Vavagiakis
Published: 2021

21. Geology, Alteration, and Geochronology of the Cerro Vetas Porphyry Gold-Copper Deposit, Middle Cauca Belt, Colombia

Author: Colin Ross, Jeremy P. Richards, and Ross Sherlock
Abstract: The Cerro Vetas porphyry deposit is part of the Titiribi district of the Middle Cauca porphyry-epithermal belt of western Colombia. The Cerro Vetas porphyry stock consists of a premineral diorite intruded by a late-mineral quartz monzonite, with intrusion and contact breccias. These units intrude pre-Cenozoic basement metabasalts and schists, Oligocene-Miocene Amagá Formation sedimentary rocks with intercalated andesite flows. Two phases of potassic alteration are recognized, a biotite-dominant phase in the diorite, and secondary K-feldspar in the quartz-monzonite intrusion. An overprinting and grade destructive, calcic-sodic alteration (actinolite + albite ± magnetite) affects both porphyries. Biotite alteration is overprinted by weak-moderate phyllic alteration in the upper 100 m in the deposit. Below 100 m, phyllic alteration assemblages are constrained to structural zones. Mineralization is dominated by a chalcopyrite-gold-pyrite assemblage associated with biotite that is hosted in a truncated stockwork in the apical portion of the deposit with metal ratios typical of a gold-rich copper-gold porphyry. The intrusions were dated, using U-Pb in zircon laser ablation inductively coupled plasma-mass spectroscopy, to between 7.65 to 7.24 Ma, consistent with other deposits in the Middle Cauca belt. Lithologic, alteration, and stratigraphic relationships at the deposit suggest that the Cerro Vetas porphyry was emplaced at shallow depths and that the upper portion of the deposit has been eroded.
Published: 2021

22. A 350 micron camera module for the Prime-Cam instrument on CCAT-prime

Author: Michael D. Niemack, Terry Herter, Colin Ross, Gordon J. Stacey, Steve K. Choi, Michel Fich, Scott Chapman, Thomas Nikola, Steve Parshley, Eve M. Vavagiakis, and Cody J. Duell
Subjects: Physics, Astrophysics::Instrumentation and Methods for Astrophysics, Intensity mapping, Astronomy, Astrophysics::Cosmology and Extragalactic Astrophysics, Astronomical survey, Galaxy, law.invention, Telescope, Observatory, law, Broadband, Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Earth and Planetary Astrophysics, Reionization, Astrophysics::Galaxy Astrophysics, Camera module
Abstract: The Cerro Chajnantor Atacama Telescope prime (CCAT-p) Observatory is a widefield, 6 meter aperture submillimeter telescope. Prime-Cam will be a powerful, first light camera for CCAT-p with imagers working at several wavelengths and a spectroscopic instrument aimed at intensity mapping during the epoch of reionization. We present the design of an instrument module in Prime-Cam, operating at 350 microns — the shortest wavelength on the instrument, and the most novel for astronomical surveys, taking full advantage of the atmospheric transparency at the high 5600 meter CCAT-p siting on Cerro Chajnantor. This instrument module will provide unprecedented broadband intensity and polarization measurement capabilities to address pressing astrophysical questions regarding galaxy formation, Big Bang cosmology, and star formation within our own Galaxy. We present the overall optical and mechanical design for the module, and laboratory characterization of the 860-GHz KID array.
Published: 2020

23. The multi-object adaptive optics system for the Gemini infra-red multi-object spectrograph

Author: Paolo Turri, Jean-Pierre Véran, Kathryn Jackson, Gaetano Sivo, Masen Lamb, Scott Chapman, David Andersen, Suresh Sivanandam, Colin Ross, Uriel Conod, Olivier Lardière, and Carlos M. Correia
Subjects: Physics, Supermassive black hole, Tomographic reconstruction, Optics, business.industry, Planet, Milky Way, Field of view, business, Adaptive optics, Spectrograph, Galaxy
Abstract: The Gemini Infra-Red Multi-Object Spectrograph (GIRMOS) is a four-arm, Multi-Object Adaptive Optics (MOAO) IFU spectrograph being built for Gemini (commissioning in 2024). GIRMOS is being planned to interface with the new Gemini-North Adaptive Optics (GNAO) system, and is base lined with a requirement of 50% EE within a 0.100 spaxel at H-band. We present a design and forecast the error budget and performance of GIRMOS-MOAO working behind GNAO. The MOAO system will patrol the 20 field of regard of GNAO, utilizing closed loop GLAO or MCAO for lower order correction. GIRMOS MOAA will perform tomographic reconstruction of the turbulence using the GNAO WFS, and utilize order 16x16 actuator DMs operating in open loop to perform an additional correction from the Pseudo Open Loop (POL) slopes, achieving close to diffraction limited performance from the combined GNAO+MOAO correction. This high performance AO spectrograph will have the broadest impact in the study of the formation and evolution of galaxies, but will also have broad reach in fields such as star and planet formation within our Milky Way and supermassive black holes in nearby galaxies.
Published: 2020

24. Optical design study for the 860 GHz first-light camera module of CCAT-p

Author: Michael D. Niemack, Michel Fich, Thomas Nikola, L. B. G. Knee, Scott Chapman, D. Johnstone, Gordon J. Stacey, Eve M. Vavagiakis, Colin Ross, Doug Henke, Stephen C. Parshley, and Steve K. Choi
Subjects: Telescope, Spectrometer, law, Sky, media_common.quotation_subject, Detector, Cosmic microwave background, Astronomy, First light, Feed horn, Camera module, law.invention, media_common
Abstract: *Doug.Henke@nrc-cnrc.gc.ca Optical design study for an 850 GHz commissioning camera module for CCAT-prime Doug Henke*a, Doug Johnstonea,b, Lewis B.G. Kneea, Scott Chapmanc, Colin Rossc, Michel Fichd, Thomas Nikolae, Steve K. Choif, Michael D. Niemackf,g, Stephen C. Parshleyf, Gordon J. Staceyf, Eve Vavagiakisf aNRC Herzberg Astronomy and Astrophysics Research Centre, Victoria, BC V9E 2E7, Canada; bDept. of Physics and Astronomy, Univ. of Victoria, Victoria, BC V8W 2Y2, Canada; cDept. of Physics and Atmospheric Science, Dalhousie Univ., Halifax, NS B3H 4R2, Canada; dDept. of Physics and Astronomy, Univ. of Waterloo, Waterloo, ON N2L 3G1, Canada; eCornell Center for Astrophysics and Planetary Science, Cornell Univ., Ithaca, NY 14853, USA; fDept. of Astronomy, Cornell Univ., Ithaca, NY 14853, USA; gDept. of Physics, Cornell Univ., Ithaca, NY 14853, USA ABSTRACT The CCAT-prime telescope, also known as the Fred Young Submillimeter Telescope (FYST), has an unblocked 6-m aperture designed for an extraordinarily wide field-of-view to be used in cosmological and galactic studies. Located at 5600 m near ALMA, the site has extremely dry conditions which make it particularly suited for observations at shorter sub-mm wavelengths. These attributes make CCAT-prime a potential platform for the next generation “Stage IV” cosmic microwave background experiment to conduct cosmology surveys of the extragalactic sky. CCAT-prime is also ideal for polarization studies within the galaxy and time-domain observations of nearby protostars. Prime-Cam is the wide-field, first-light instrument for CCAT-prime which, when complete, will contain seven instrument modules, including cameras and spectrometers, spanning mm through sub-mm wavelengths. Not all receiver modules are currently funded—including the 350 mm (~850 GHz) camera module that motivates the extraordinary high site of CCAT-p. Recognizing that an 850 GHz commissioning camera may be needed within the next 1–2 years, an optical design study was initiated where we purposely chose to reduce the scope, cost, and complexity while still preserving diffraction-limited optics, allowing for early science until the more powerful wide field science-grade camera module replaced it. In order to minimize the cost and scope of an 850 GHz commissioning camera, the optics plan for reuse of existing detectors (ACT MBAC TES detectors or BLAST-TNG MKIDs) and interface with the existing instrument module cartridge planned for Prime-Cam. Further simplifications include restricting the field-of-view and utilizing on-axis HDPE lenses without an anti-reflection layer. Discussion of optimal detector array F-lambda scaling, analysis of power loading, and feed horn coupling efficiency is included.
Published: 2020

25. Results of gravitational lensing and primordial gravitational waves from the POLARBEAR experiment

Author: Peter A. R. Ade, Davide Poletti, C. Verges, Shunsuke Adachi, Kam Arnold, Yuji Chinone, A. Suzuki, Yuto Minami, Chang Feng, J. Peloton, Nathan Whitehorn, Oliver Jeong, N. W. Halverson, Yuki Inoue, T. Hamada, Akito Kusaka, Y. Zhou, A. Zahn, A. Cukierman, M. Aguilar, Carole Tucker, D. Beck, Nicoletta Krachmalnicoff, Rolando Dünner, Brian Keating, Paul L. Richards, Stephen M. Feeney, J. C. Groh, Julian Borrill, C. Tsai, Joshua Montgomery, Darcy Barron, Theodore Kisner, R. Stompor, G. Hall, D. Boettger, Tucker Elleflot, Josquin Errard, Frederick Matsuda, L. N. Lowry, D. Leon, Takayuki Tomaru, Reijo Keskitalo, Benjamin Westbrook, M. Navaroli, D. Kaneko, K. Cheung, Osamu Tajima, A. T. P. Pham, Eric V. Linder, Giulio Fabbian, A. J. Gilbert, L. Howe, Neil Goeckner-Wald, H. El-Bouhargani, Max Silva-Feaver, Hans P. Paar, M. A. Dobbs, S. Takatori, Federico Bianchini, Colin Ross, Christian L. Reichardt, John Groh, Praween Siritanasak, Julien Carron, Tomotake Matsumura, T. Fujino, Y. Akiba, H. Nishino, G. Jaehnig, Giuseppe Puglisi, Charles A. Hill, D. Tanabe, Andrew H. Jaffe, Masashi Hazumi, Nicholas Galitzki, Blake D. Sherwin, S. Kikuchi, Carlo Baccigalupi, E. M. Leitch, S. Beckman, N. Katayama, Grant Teply, A. Ducout, Aashrita Mangu, M. LeJeune, Adrian T. Lee, Nathan Stebor, Masaya Hasegawa, S. Takakura, Y. Segawa, Scott Chapman, Kevin T. Crowley, Chinone, Y, Adachi, S, Ade, P, Aguilar, M, Akiba, Y, Arnold, K, Baccigalupi, C, Barron, D, Beck, D, Beckman, S, Bianchini, F, Boettger, D, Borrill, J, Elbouhargani, H, Carron, J, Chapman, S, Cheung, K, Crowley, K, Cukierman, A, Dunner, R, Dobbs, M, Ducout, A, Elleflot, T, Errard, J, Fabbian, G, Feeney, S, Feng, C, Fujino, T, Galitzki, N, Gilbert, A, Goeckner-Wald, N, Groh, J, Hall, G, Halverson, N, Hamada, T, Hasegawa, M, Hazumi, M, Hill, C, Howe, L, Inoue, Y, Jaehnig, G, Jaffe, A, Jeong, O, Lejeune, M, Kaneko, D, Katayama, N, Keating, B, Keskitalo, R, Kikuchi, S, Kisner, T, Krachmalnicoff, N, Kusaka, A, Lee, A, Leitch, E, Leon, D, Linder, E, Lowry, L, Mangu, A, Matsuda, F, Matsumura, T, Minami, Y, Montgomery, J, Navaroli, M, Nishino, H, Paar, H, Peloton, J, Pham, A, Poletti, D, Puglisi, G, Reichardt, C, Richards, P, Ross, C, Segawa, Y, Sherwin, B, Silva-Feaver, M, Siritanasak, P, Stebor, N, Stompor, R, Suzuki, A, Tajima, O, Takakura, S, Takatori, S, Tanabe, D, Teply, G, Tomaru, T, Tsai, C, Tucker, C, Verges, C, Westbrook, B, Whitehorn, N, Zahn, A, Zhou, Y, AstroParticule et Cosmologie (APC (UMR_7164)), 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)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), POLARBEAR, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)
Subjects: History, satellite: Planck, Cosmic microwave background, gravitational lensing, cosmic background radiation: polarization, detector: noise, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Gravity waves, power spectrum, 01 natural sciences, Education, Primary mirror, symbols.namesake, Settore FIS/05 - Astronomia e Astrofisica, gravitation: lens, Polarization, 0103 physical sciences, Planck, mirror, 010303 astronomy & astrophysics, Physics, COSMIC cancer database, 010308 nuclear & particles physics, Gravitational wave, Settore FIS/05, POLARBEAR experiment, Gravitational effects, gravitational radiation: primordial, Astrophysics::Instrumentation and Methods for Astrophysics, Polarization (waves), Galaxy, Computer Science Applications, Gravitational lens, B-mode, symbols, [PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc], galaxy
Abstract: POLARBEAR is a Cosmic Microwave Background radiation (CMB) polarization experiment that is located in the Atacama Desert in Chile. The scientific goals of the experiment are to characterize the B-mode signal from gravitational lensing, as well as to search for B-mode signals created by primordial gravitational waves (PGWs). Polarbear started observations in 2012 and has published a series of results. These include the first measurement of a nonzero B-mode angular auto-power spectrum at sub-degree scales where the dominant signal is gravitational lensing of the CMB. In addition, we have achieved the first measurement of crosscorrelation between the lensing potential, which was reconstructed from the CMB polarization data alone by Polarbear, and the cosmic shear field from galaxy shapes by the Subaru Hyper Suprime-Cam (HSC) survey. In 2014, we installed a continuously rotating half-wave plate (CRHWP) at the focus of the primary mirror to search for PGWs and demonstrated the control of low-frequency noise. We have found that the low-frequency B-mode power in the combined dataset with the Planck high-frequency maps is consistent with Galactic dust foreground, thus placing an upper limit on the tensor-to-scalar ratio of r < 0.90 at the 95% confidence level after marginalizing over the foregrounds.
Published: 2020

26. SuperSpec, The On-Chip Spectrometer: Improved NEP and Antenna Performance

Author: George Che, Carole Tucker, J. Redford, Jordan Wheeler, Peter S. Barry, Jonas Zmuidzinas, Christopher M. McKenney, Charles M. Bradford, Ryan McGeehan, S. Hailey-Dunsheath, C. Shiu, T. Reck, Philip Daniel Mauskopf, Colin Ross, Simon Doyle, Henry G. LeDuc, Matthew I. Hollister, Jason Glenn, Jordan A. Turner, Erik Shirokoff, Attila Kovács, Samuel Gordon, Samantha Walker, and Scott Chapman
Subjects: Physics, Spectrometer, business.industry, Detector, Slot antenna, 02 engineering and technology, Grating, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Atomic and Molecular Physics, and Optics, Redshift, 010309 optics, Responsivity, Optics, 0103 physical sciences, General Materials Science, Millimeter, 0210 nano-technology, business, Microwave
Abstract: SuperSpec is a new technology for mm and sub-mm spectroscopy. It is an on-chip spectrometer being developed for multi-object, moderate-resolution ( R∼300 ), large bandwidth survey spectroscopy of high-redshift galaxies for the 1 mm atmospheric window. This band accesses the CO ladder in the redshift range of z= 0–4 and the [CII] 158 μ m line from redshift z= 5–9. SuperSpec employs a novel architecture in which detectors are coupled to a series of resonant filters along a single microwave feedline instead of using dispersive optics. This construction allows for the creation of a full spectrometer occupying only ∼10cm2 of silicon, a reduction in size of several orders of magnitude when compared to standard grating spectrometers. This small profile enables the production of future multi-beam spectroscopic instruments envisioned for the millimeter band to measure the redshifts of dusty galaxies efficiently. The SuperSpec collaboration is currently pushing toward the deployment of a SuperSpec demonstration instrument in fall of 2018. The progress with the latest SuperSpec prototype devices is presented; reporting increased responsivity via a reduced inductor volume (2.6 μm3 ) and the incorporation of a new broadband antenna. A detector NEP of 3–4 ×10−18 W/Hz 0.5 is obtained, sufficient for background-limited observation on mountaintop sites. In addition, beam maps and efficiency measurements of a new wide-band dual bow-tie slot antenna are shown.
Published: 2018

27. Treatment Outcomes Across Ten Months of Combined Inpatient and Outpatient Treatment In a Traumatized and Dissociative Patient Group

Author: Colin Ross, Caitlin Goode, and Elizabeth Schroeder
Abstract: Thirty-seven inpatients in a hospital-based Trauma Program completed a set of measures at admission and at 6 and 10-months follow-up. On the Dissociative Disorders Interview Schedule, the average number of secondary features of dissociative identity disorder at baseline was 3.6 (SD ⇤ 4.2), and the average score on the Dissociative Experiences Scale (DES) was 37.8 (SD ⇤ 21.9). At 10 months follow-up, average scores on the DES had declined significantly from 37.8 to 31.1; average scores on the Beck Depression Inventory-II had declined from 36.9 to 24.3; and average scores on the Somatoform Dissociation Questionnaire had declined from 41.5 to 32.5. Treatment outcomes for complex dissociative disorders are supported by replicated prospective studies and are evidence based at Level II according to the criteria of the United States Preventive Services Task Force
Published: 2018

28. Treatment strategies for programming and ritual abuse

Author: Colin Ross
Published: 2019

29. Deployment of Polarbear-2A

Author: Chang Feng, Radek Stompor, Takayuki Tomaru, Rolando Dünner, Josquin Errard, D. Tanabe, Praween Siritanasak, N. Stebor, Julien Carron, D. Leon, Davide Poletti, K. Cheung, C. Tsai, S. Takakura, Grant Teply, Yuto Minami, Yuki Inoue, Stephen M. Feeney, Yuji Chinone, Frederick Matsuda, D. Beck, Akito Kusaka, Y. Akiba, A. Suzuki, Nicoletta Krachmalnicoff, Adrian T. Lee, M. Aguilar Faúndez, J. Peloton, Colin Ross, Osamu Tajima, D. Boettger, B. Westbrook, A. T. P. Pham, M. Navaroli, N. W. Halverson, Y. Zhou, Federico Bianchini, A. Cukierman, Aashrita Mangu, Nobuhiko Katayama, T. Hamada, Tucker Elleflot, Y. Segawa, Masaya Hasegawa, G. Hall, Julian Borrill, Peter A. R. Ade, Eric V. Linder, Giulio Fabbian, H. Nishino, G. Jaehnig, Giuseppe Puglisi, Charles A. Hill, Shunsuke Adachi, S. Takatori, L. Howe, A. J. Gilbert, H. El-Bouhargani, Christian L. Reichardt, Kam Arnold, John Groh, Masashi Hazumi, Neil Goeckner-Wald, Nicholas Galitzki, S. Beckman, Brian Keating, M. A. Dobbs, Carlo Baccigalupi, Clara Vergès, Theodore Kisner, Reijo Keskitalo, Daisuke Kaneko, T. Fujino, S. Kikuchi, Darcy Barron, L. N. Lowry, Scott Chapman, Maximiliano Silva-Feaver, Oliver Jeong, Kevin T. Crowley, AstroParticule et Cosmologie (APC (UMR_7164)), 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)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Kaneko, D, Adachi, S, Ade, P, Aguilar Faundez, M, Akiba, Y, Arnold, K, Baccigalupi, C, Barron, D, Beck, D, Beckman, S, Bianchini, F, Boettger, D, Borrill, J, Carron, J, Chapman, S, Cheung, K, Chinone, Y, Crowley, K, Cukierman, A, Dobbs, M, Dunner, R, El-Bouhargani, H, Elleflot, T, Errard, J, Fabbian, G, Feeney, S, Feng, C, Fujino, T, Galitzki, N, Gilbert, A, Goeckner-Wald, N, Groh, J, Hall, G, Halverson, N, Hamada, T, Hasegawa, M, Hazumi, M, Hill, C, Howe, L, Inoue, Y, Jaehnig, G, Jeong, O, Katayama, N, Keating, B, Keskitalo, R, Kikuchi, S, Kisner, T, Krachmalnicoff, N, Kusaka, A, Lee, A, Leon, D, Linder, E, Lowry, L, Mangu, A, Matsuda, F, Minami, Y, Navaroli, M, Nishino, H, Peloton, J, Pham, A, Poletti, D, Puglisi, G, Reichardt, C, Ross, C, Segawa, Y, Silva-Feaver, M, Siritanasak, P, Stebor, N, Stompor, R, Suzuki, A, Tajima, O, Takakura, S, Takatori, S, Tanabe, D, Teply, G, Tomaru, T, Tsai, C, Verges, C, Westbrook, B, Zhou, Y, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)
Subjects: [PHYS]Physics [physics], Settore FIS/05, Gravitational wave, Cosmic microwave background, Millimeter wave, First light, CMB, Condensed Matter Physics, 7. Clean energy, 01 natural sciences, Atomic and Molecular Physics, and Optics, 010305 fluids & plasmas, Microwave emission, Settore FIS/05 - Astronomia e Astrofisica, TES bolometer, Planet, Software deployment, 0103 physical sciences, Extremely high frequency, B-mode polarization, General Materials Science, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Remote sensing
Abstract: International audience; Polarbear-2A is the first of three receivers in the Simons array, a cosmic microwave background experiment located on the Atacama Plateau in Chile. Polarbear-2A was deployed and achieved the first light in January 2019 by mapping the microwave emission from planet observations. Commissioning work is underway to prepare the receiver for science observations.
Published: 2019

30. The SCUBA-2 Web Survey : I. observations of CO(3–2) in hyper-luminous QSO fields

Author: Trystyn A. M. Berg, Ryley Hill, Colin Ross, Frank Bertoldi, Scott Chapman, Ian Smail, Yuichi Matsuda, Gwen C. Rudie, Douglas Scott, Kevin Lacaille, Yu Gao, Charles C. Steidel, Arif Babul, Melanie Krips, Ryan F. Trainor, Institut de RadioAstronomie Millimétrique (IRAM), and Centre National de la Recherche Scientifique (CNRS)
Subjects: QSOS, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Astrophysics::High Energy Astrophysical Phenomena, galaxies: active, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, 0103 physical sciences, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, Physics, 010308 nuclear & particles physics, Astronomy and Astrophysics, Continuum flux, Astrophysics - Astrophysics of Galaxies, Redshift, quasars: emission lines, Interferometry, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], submillimetre: galaxies, Web survey, Order of magnitude, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: A primary goal of the SCUBA-2 Web survey is to perform tomography of the early inter-galactic medium by studying systems containing some of the brightest quasi-stellar objects (QSOs; 2.510^14 L_odot) QSOs with previous submillimetre continuum detections were followed up with CO(3-2) observations using the NOEMA interferometer. All but two of the QSOs are detected in CO(3-2); for one non-detection, our observations show a tentative 2sigma line at the expected position and redshift, and for the other non-detection we find only continuum flux density an order of magnitude brighter than the other sources. In three of the fields, a companion potentially suitable for tomography is detected in CO line emission within 25 arcsec of the QSO. We derive gas masses, dynamical masses and far-infrared luminosities, and show that the QSOs in our sample have similar properties as compared to less luminous QSOs and SMGs in the literature, despite the fact that their black-hole masses (which are proportional to L_AGN) are 1-2 orders of magnitude larger. We discuss two interpretations of these observations: this is due to selection effects, such as preferential face-on viewing angles and picking out objects in the tail ends of the scatter in host-galaxy mass and black-hole mass relationships; or the black hole masses have been overestimated because the accretion rates are super-Eddington., Comment: 16 pages, 7 figures. Latest version published in MNRAS
Published: 2019

31. H3N8 and H3N2 Canine Influenza Viruses: Understanding These New Viruses in Dogs

Author: Colin Ross, Parrish and Ian Eugene Huber, Voorhees
Subjects: Influenza A Virus, H3N8 Subtype, Dogs, Orthomyxoviridae Infections, Influenza A Virus, H3N2 Subtype, Animals, Dog Diseases, Communicable Diseases, Emerging
Abstract: Two different influenza A viruses have infected and spread among dogs since 2000, and both have been widespread in dogs in North America. The H3N8 canine influenza virus arose in the United States as a variant of equine influenza virus. The H3N2 canine influenza virus arose in Asia by transfer of an avian influenza virus to dogs. Both viruses cause mild respiratory disease and are associated with outbreaks in densely housed dogs or those with frequent connections to other dogs. The 2 canine influenza viruses each caused widespread epidemics over at least several years that were associated with localized outbreaks.
Published: 2019

32. Post-politics and the Housing Accords and Special Housing Areas Act 2013 : a thesis presented in partial fulfilment of the requirements for the degree of Master of Resources and Environmental Planning at Massey University, Manawatū, New Zealand

Author: McLeay, Colin Ross and McLeay, Colin Ross
Abstract: This thesis draws on concepts of post-politics in an analysis of the Housing Accords and Special Housing Areas Act 2013. A short-term means for improving housing affordability by facilitating an increase in land and housing supply, the Housing Accords and Special Housing Areas Act 2013 had implications for the planning and development of select cities and districts in New Zealand. Introduced by a National-led Government, the Housing Accords and Special Housing Areas Act 2013 was enacted in sympathy with existing neo-liberal political and planning norms. The application of a post-political lens facilitates identification of the democratic limitations of the Housing Accords and Special Housing Areas Act 2013. Analysis of submissions to the select committee addressing the Housing Accords and Special Housing Areas Act 2013 and debates in the House of Representatives provides evidence of both limitations of the debates that shaped the enactment of the legislation and challenges to the content of the legislation. The ways in which debates were narrowed align with post-political themes of the acceptance of the neoliberal consensus, the erosion of democracy, the status of knowledge, scope of possible outcomes, and empty signifiers. The consensus that characterises post-political conditions is open to challenge, with scholars reporting on the potential of agonistic pluralism to facilitate democratic participatory planning.
Published: 2019

33. Evaluations of Interactive Learning Tools Among Engineering Students: Effects of Grit and Gender

Author: Colin Ross Harbke, Prathivadi Ravikumar, Eun Go, Blair McDonald, Il-Seop Shin, and Khaled Zbeeb
Subjects: Mathematics education, Grit, Psychology, Interactive Learning
Abstract: This study explores what determines engineering students’ evaluations of interactive learning tools (ILTs). Engineering students (n = 323) from large U.S. universities who had used McGraw-Hill’s SmartBook and Connect participated in the study. This study confirms that grit and gender are important factors in opinions and attitudes toward such tools. Specifically, among males, those with higher grit found ILTs as more useful and usable. Moreover, higher levels of grit were related to favorable attitudes toward ILTs. Interesting to note was that females reported more favorable evaluations on ILTs overall. These findings suggest strategies for the use of interactive learning tools for engineering students to succeed. Implications and recommendations for future research will also discussed.
Published: 2018

34. The multi-object adaptive optics system for the GIRMOS spectrograph on Gemini-South

Author: Jean-Pierre Veran, David R. Andersen, Olivier Lardière, Scott Chapman, Gaetano Sivo, Colin Ross, Masen Lamb, Suresh Sivanadam, Carlos Correia, and Colin Bradley
Subjects: Telescope, Supermassive black hole, Pathfinder, Conceptual design, Planet, Computer science, law, Strehl ratio, Astronomy, Adaptive optics, Spectrograph, law.invention
Abstract: GIRMOS is a new concept for a Multi-Object Adaptive Optics (MOAO) spectrograph for Gemini (commissioning in 2023). We present an overview of the GIRMOS-MOAO conceptual design and simulation results. This instrument will become a facility instrument at Gemini and carry out scientific follow-up for JWST, but will also act as a Thirty-Meter Telescope (TMT) pathfinder, laying the scientific and technical ground-work for developing a second generation instrument for TMT. Technical Innovations for GIRMOS include a modular, high performance MOAO system, and high throughput infrared imaging spectroscopy. These technological innovations will have the broadest impact in the study of the formation and evolution of galaxies, but will also have broad reach in fields such as star and planet formation within our Milky Way and supermassive black holes in nearby galaxies. The MOAO system will patrol the 2' field of regard of GeMS, and utilize 16×16 actuator DMs feeding 4 IFU spectrographs, to yield diffraction limited performance with a goal of 50% Strehl at H-band.
Published: 2018

35. SuperSpec: the on-chip spectrometer: characterization of a full 300 channel filterbank (Conference Presentation)

Author: Charles M. Bradford, Matthew I. Hollister, Jason Glenn, Scott Chapman, Henry G. LeDuc, Simon Doyle, Jonas Zmuidzinas, Christopher M. McKenney, Samuel Gordon, Erik Shirokoff, S. Hailey-Dunsheath, Peter S. Barry, Colin Ross, Ryan McGeehan, C. Shiu, Atilla Kovacs, George Che, Carole Tucker, Theodore Reck, Jordan Wheeler, Philip Daniel Mauskopf, Jordan A. Turner, and Joeseph G. Redford
Subjects: Physics, Resonator, Responsivity, Optics, Spectrometer, business.industry, Transmission line, Detector, business, Noise-equivalent power, Microstrip, Microwave
Abstract: SuperSpec is a new technology for millimeter and submillimeter spectroscopy. It is an on-chip spectrometer being developed for multi-object, moderate resolution (R = ~300), large bandwidth survey spectroscopy of high-redshift galaxies for the 1 mm atmospheric window. SuperSpec targets the CO ladder in the redshift range of z = 0 to 4, the [CII] 158 um line from z = 5 to 9, and the [NII] 205 um line from z = 4-7. All together these lines offer complete redshift coverage from z = 0 to 9. SuperSpec employs a novel architecture in which detectors are coupled to a series of resonant filters along a single microwave feedline instead of using dispersive optics. This construction allows for the creation of a full spectrometer occupying only 20 cm squared of silicon, a reduction in size of several orders of magnitude when compared to standard grating spectrometers. This small profile enables the production of future multi-object spectroscopic instruments required as the millimeter-wave spectroscopy field matures. SuperSpec uses a lens-coupled antenna to deliver astrophysical radiation to a microstrip transmission line. The radiation then propagates down this transmission line where upon proximity coupled half wavelength microstrip resonators pick off specific frequencies of radiation. Careful tuning of the proximity of the resonators to the feedline dials in the desired resolving power of the SuperSpec filterbank by tuning the coupling quality factor. The half wavelength resonators are then in turn coupled to the inductive meander of kinetic inductance detectors (KIDs), which serve as the power detectors for the SuperSpec filterbank. Each SuperSpec filter bank contains hundreds of titanium nitride TiN KIDs and the natural multiplexibility of these detectors allow for readout of the large numbers of required detectors. The unique coupling scheme employed by SuperSpec allows for the creation of incredibly low volume (2.6 cubic microns), high responsivity, TiN KIDs. Since responsivity is proportional to the inverse of quasiparticle-occupied volume, this allows SuperSpec to reach the low NEPs required by moderate resolution spectroscopy to be photon limited from the best ground-based observing sites. We will present the latest results from SuperSpec devices. In particular, detector NEPs, measured filter bank efficiency (including transmission line losses), and spectral profiles for a full ~ 300-channel filterbank. Finally, we will report on our system end to end efficiency and total system NEP.
Published: 2018

36. Electrical characterization and tuning of the integrated POLARBEAR-2a focal plane and readout (Conference Presentation)

Author: J. Borrill, Paul L. Richards, Stephen M. Feeney, A. T. P. Pham, J. Peloton, Darcy Barron, Mario Aguilar, Josquin Errard, L. N. Lowry, D. Beck, A. Cukierman, Akito Kusaka, M. Le Jeune, Neil Goeckner-Wald, Max Silva Feaver, W. L. Holzapfel, Nicoletta Krachmalnicoff, Gabriele Coppi, H. Roberts, Peter Ashton, A. Tikhomirov, M. A. Dobbs, Osamu Tajima, D. Leon, Masashi Hazumi, P. A. R. Ade, Grant Teply, Nathan J. Miller, Colin Ross, Nicholas Galitzki, P. Siritanasak, Blake D. Sherwin, Tucker Elleflot, Y. Akiba, K. M. Rotermund, S. Beckman, A. J. Gilbert, Christian L. Reichardt, R. Dunner, Gary A. Fuller, Oliver Jeong, Eric V. Linder, A. Madurowicz, Giulio Fabbian, John Groh, Jessica Avva, Yuki Inoue, S. Takatori, G. Jaehnig, Carlo Baccigalupi, Giuseppe Puglisi, Charles A. Hill, S. Takakura, Andrew May, Scott Chapman, D. Plambeck, Kevin T. Crowley, D. Tanabe, Kam Arnold, Brian Keating, Aamir Ali, Benjamin Westbrook, M. Navroli, Adrian T. Lee, Jennifer Ito, Masaya Hasegawa, Aritoki Suzuki, Federico Bianchini, Theodore Kisner, Julien Carron, Tomotake Matsumura, Reijo Keskitalo, Daisuke Kaneko, Y. Segawa, T. Natoli, Frederick Matsuda, Yuji Chinone, N. W. Halverson, R. Stompor, T. de Haan, T. Hamada, A. Zahn, Amy N. Bender, D. Boettger, Takayuki Tomaru, R. Tat, A. Lowitz, Chang Feng, C. Tsai, Lucio Piccirillo, Leo Steinmetz, Nobuhiko Katayama, Daisy Mak, Davide Poletti, C. Verges, L. Howe, Haruki Nishino, A. Anderson, Yuto Minami, Gabriel M. Rebeiz, Nathan Whitehorn, Christopher Raum, Joshua Montgomery, 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), 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)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), 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, and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)
Subjects: temperature: transition, Cosmic microwave background, cosmic background radiation: polarization, frequency-division multiplexing, Astrophysics::Cosmology and Extragalactic Astrophysics, SQUID, 01 natural sciences, 010305 fluids & plasmas, law.invention, cosmic background radiation: B-mode, Optics, bolometer, gravitation: lens, law, 0103 physical sciences, millimeter-wave, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], inflation, 010306 general physics, Physics, Gravitational wave, business.industry, superconductivity, Detector, Bolometer, Astrophysics::Instrumentation and Methods for Astrophysics, gravitational radiation: primordial, Spectral density, cosmic microwave background polarization, stability, Polarization (waves), transition-edge sensor, Extremely high frequency, resonance: frequency, power spectrum: angular dependence, readout, dfmux, Transition edge sensor, business, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract: International audience; POLARBEAR is a cosmic microwave background (CMB) polarization experiment located in the Atacama desert in Chile. The science goals of the POLARBEAR project are to do a deep search for CMB B-mode polarization created by inflationary gravitational waves, as well as characterize the CMB B-mode signal from gravitational lensing. POLARBEAR-1 started observations in 2012, and the POLARBEAR team has published a series of results from its first two seasons of observations, including the first measurement of a non-zero B-mode polarization angular power spectrum, measured at sub-degree scales where the dominant signal is gravitational lensing of the CMB. The Simons Array expands POLARBEAR to include an additional two telescopes with next-generation POLARBEAR-2 multi-chroic receivers, observing at 95, 150, 220, and 270 GHz.The POLARBEAR-2A focal plane has 7,588 transition-edge sensor bolometers, read out with frequency-division multiplexing, with 40 frequency channels within the readout bandwidth of 1.5 to 4.5 MHz. The frequency channels are defined by a low-loss lithographed aluminum spiral inductor and interdigitated capacitor in series with each bolometer, creating a resonant frequency for each channel's unique voltage bias and current readout. Characterization of the readout includes measuring resonant peak locations and heights and fitting to a circuit model both above and below the bolometer superconducting transition temperature. This information is used determine the optimal detector bias frequencies and characterize stray impedances which may affect bolometer operation and stability. The detector electrical characterization includes measurements of the transition properties by sweeping in temperature and in voltage bias, measurements of the bolometer saturation power, as well as measuring and removing any biases introduced by the readout circuit. We present results from the characterization, tuning, and operation of the fully integrated focal plane and readout for the first POLARBEAR-2 receiver, POLARBEAR-2A, during its pre-deployment integration run.
Published: 2018

37. POLARBEAR-2: a new CMB polarization receiver system for the Simons array (Conference Presentation)

Author: Frederick Matsuda, Colin Ross, Josquin Errard, Dominic Beck, Theodore Kisner, Masashi Hazumi, Peter A. R. Ade, Reijo Keskitalo, Daisuke Kaneko, Nicholas Galitzki, Davide Poletti, N. W. Halverson, W. L. Holzapfel, Carlo Baccigalupi, Junichi Suzuki, Rolando Dünner, Gabriel M. Rebeiz, Blake D. Sherwin, H. Roberts, Scott Chapman, Haruki Nishino, Paul L. Richards, Clara Vergès, Amy N. Bender, Yuto Minami, Raymond Tat, Takahiro Okamura, Akito Kusaka, Suet Ying D. Mak, Nathan Whitehorn, Kevin T. Crowley, Stephen M. Feeney, Richard Plambeck, Giuseppe Puglisi, Chang Feng, Charles Hill, T. Hamada, Nicoletta Krachmalnicoff, D. Tanabe, Takayuki Tomaru, D. Leon, Julian Borrill, M. Navaroli, Federico Bianchini, S. Beckman, Andrew H. Jaffe, Neil Goeckner-Wald, D. Boettger, C. Tsai, A. T. P. Pham, Lucio Piccirillo, Tijmen de Haan, Maximiliano Silva-Feaver, Aamir Ali, Kaja Rotermund, Oliver Jeong, Yuji Chinone, Maude Jeune, Andrew Gilbert, Christopher Raum, A. Zahn, Radek Stompor, Osamu Tajima, Joshua Montgomery, Brian Keating, J. Peloton, George M. Fuller, Yuki Inoue, Darcy Barron, L. N. Lowry, Mario Aguilar, S. Takatori, Gabriele Coppi, Nathan J. Miller, Christian L. Reichardt, John Groh, Kam Arnold, Jennifer Ito, Greg Jaehnig, Tucker Elleflot, Eric V. Linder, Giulio Fabbian, L. Howe, Peter Ashton, Leo Steinmetz, Grant Teply, Y. Akiba, Ali Cukierman, Praween Siritanasak, Alex Madurowicz, Nobuhiko Katayama, Matt Dobbs, Andrew May, Ben Westbrook, Aritoki Suzuki, Adrian T. Lee, Julien Carron, Masaya Hasegawa, Y. Segawa, Tomotake Matsumura, S. Takakura, AstroParticule et Cosmologie (APC (UMR_7164)), 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)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), 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)-Centre National d’Études Spatiales [Paris] (CNES), 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), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), 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), 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 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, and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)
Subjects: 010504 meteorology & atmospheric sciences, Cosmic microwave background, optics: design, cosmic background radiation: polarization, Astrophysics::Cosmology and Extragalactic Astrophysics, 7. Clean energy, 01 natural sciences, Multiplexing, neutrino mass, law.invention, Telescope, Optics, bolometer, law, Polarization, 0103 physical sciences, Cosmic Microwave Background, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010303 astronomy & astrophysics, activity report, detector: design, 0105 earth and related environmental sciences, Physics, business.industry, Bolometer, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Polarization (waves), Inflation, Cardinal point, TES bolometer, B-mode, cryogenics, electronics: readout, Neutrino, interference: quantum, business, performance
Abstract: International audience; POLARBEAR-2 is a new receiver system, which will be deployed on the Simons Array telescope platform, for the measurement of Cosmic Microwave Background (CMB) polarization. The science goals with POLARBEAR-2 are to characterize the B-mode signal both at degree and sub-degree angular-scales. The degree-scale polarization data can be used for quantitative studies on inflation, such as the reconstruction of the energy scale of inflation. The sub-degree polarization data is an excellent tracer of large-scale structure in the universe, and will lead to precise constraints on the sum of the neutrino masses. In order to achieve these goals, POLARBEAR-2 employs 7588 polarization-sensitive antenna-coupled transition-edge sensor (TES) bolometers on the focal plane cooled to 0.27K with a three-stage Helium sorption refrigerator, which is ~6 times larger array over the current receiver system. The large TES bolometer array is read-out by an upgraded digital frequency-domain multiplexing system capable of multiplexing 40 bolometers through a single superconducting quantum interference device (SQUID). The first POLARBEAR-2 receiver, POLARBEAR-2A is constructed and the end-to-end testing to evaluate the integrated performance of detector, readout, and optics system is being conducted in the laboratory with various types of test equipments. The POLARBEAR-2A is scheduled to be deployed in 2018 at the Atacama desert in Chile. To further increase measurement sensitivity, two more POLARBEAR-2 type receivers will be deployed soon after the deployment (Simons Array project). The Simons Array will cover four frequency bands at 95GHz, 150GHz, 220GH and 270GHz for better control of the foreground signal. The projected constraints on a tensor-to-scalar ratio (amplitude of inflationary B-mode signal) is σ(r=0.1) = $6.0 \times 10^{-3}$ after foreground removal ($4.0 \times 10^{-3}$ (stat.)), and the sensitivity to the sum of the neutrino masses when combined with DESI spectroscopic galaxy survey data is 40 meV at 1-sigma after foreground removal (19 meV(stat.)). We will present an overview of the design, assembly and status of the laboratory testing of the POLARBEAR-2A receiver system as well as the Simons Array project overview.
Published: 2018

38. Maladaptive Daydreaming and Dissociation: Both a Continuum and a Taxon

Author: Colin Ross
Published: 2019

39. H3N8 and H3N2 Canine Influenza Viruses

Author: Parrish, Colin Ross, primary and Voorhees, Ian Eugene Huber, additional
Published: 2019
Full Text: View/download PDF

40. Evaluations of Interactive Learning Tools Among Engineering Students: Effects of Grit and Gender

Author: Shin, Il-Seop, Go, Eun, Harbke, Colin Ross, Ravikumar, Prathivadi, McDonald, Blair, Zbeeb, Khaled, Shin, Il-Seop, Go, Eun, Harbke, Colin Ross, Ravikumar, Prathivadi, McDonald, Blair, and Zbeeb, Khaled
Abstract: This study explores what determines engineering students’ evaluations of interactive learning tools (ILTs). Engineering students (n = 323) from large U.S. universities who had used McGraw-Hill’s SmartBook and Connect participated in the study. This study confirms that grit and gender are important factors in opinions and attitudes toward such tools. Specifically, among males, those with higher grit found ILTs as more useful and usable. Moreover, higher levels of grit were related to favorable attitudes toward ILTs. Interesting to note was that females reported more favorable evaluations on ILTs overall. These findings suggest strategies for the use of interactive learning tools for engineering students to succeed. Implications and recommendations for future research will also discussed.
Published: 2018

41. The POLARBEAR-2 and Simons Array Focal Plane Fabrication Status

Author: Adrian T. Lee, Neil Goeckner-Wald, D. Beck, D. Leon, A. Cukierman, M. Navaroli, Brian Keating, Y. Segawa, Tucker Elleflot, Masaya Hasegawa, Maximiliano Silva-Feaver, Peter A. R. Ade, Y. Akiba, Matt Dobbs, Julian Borrill, Paul L. Richards, Stephen M. Feeney, Rolando Dünner, K. M. Rotermund, C. Tsai, Oliver Jeong, Osamu Tajima, A. T. P. Pham, Eric V. Linder, Gabriel M. Rebeiz, Josquin Errard, S. Takakura, D. Plambeck, Lucio Piccirillo, Nathan Whitehorn, Yuji Chinone, S. Beckman, Giulio Fabbian, L. Howe, M. Le Jeune, Federico Bianchini, Christopher Raum, Daisy Mak, Grant Teply, W. L. Holzapfel, Andrew May, Joshua Montgomery, Carlo Baccigalupi, H. Roberts, S. Takatori, Christian L. Reichardt, Reijo Keskitalo, A. J. Gilbert, Gary A. Fuller, R. Tat, Akito Kusaka, Nobuhiko Katayama, D. Boettger, A. Tikhomirov, John Groh, Benjamin Westbrook, Giuseppe Puglisi, Charles A. Hill, Scott Chapman, Nicoletta Krachmalnicoff, Colin Ross, Amy N. Bender, A. Madurowicz, Darcy Barron, J. Peloton, N. W. Halverson, L. N. Lowry, Aritoki Suzuki, Chang Feng, Andrew H. Jaffe, Takayuki Tomaru, Davide Poletti, A. Zahn, Radek Stompor, Mario Ferrada Aguilar, Theodore Kisner, T. de Haan, T. Hamada, Gabriele Coppi, Yuto Minami, Yuki Inoue, Nathan J. Miller, D. Tanabe, H. Nishino, G. Jaehnig, Masashi Hazumi, Nicholas Galitzki, Blake D. Sherwin, Kevin D. Crowley, Kam Arnold, Frederick Matsuda, D. Kaneko, Praween Siritanasak, AstroParticule et Cosmologie (APC (UMR_7164)), 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), 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), 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)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), 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), Westbrook, B, Ade, P, Aguilar, M, Akiba, Y, Arnold, K, Baccigalupi, C, Barron, D, Beck, D, Beckman, S, Bender, A, Bianchini, F, Boettger, D, Borrill, J, Chapman, S, Chinone, Y, Coppi, G, Crowley, K, Cukierman, A, de Haan, T, Dunner, R, Dobbs, M, Elleflot, T, Errard, J, Fabbian, G, Feeney, S, Feng, C, Fuller, G, Galitzki, N, Gilbert, A, Goeckner-Wald, N, Groh, J, Halverson, N, Hamada, T, Hasegawa, M, Hazumi, M, Hill, C, Holzapfel, W, Howe, L, Inoue, Y, Jaehnig, G, Jaffe, A, Jeong, O, Kaneko, D, Katayama, N, Keating, B, Keskitalo, R, Kisner, T, Krachmalnicoff, N, Kusaka, A, Le Jeune, M, Lee, A, Leon, D, Linder, E, Lowry, L, Madurowicz, A, Mak, D, Matsuda, F, May, A, Miller, N, Minami, Y, Montgomery, J, Navaroli, M, Nishino, H, Peloton, J, Pham, A, Piccirillo, L, Plambeck, D, Poletti, D, Puglisi, G, Raum, C, Rebeiz, G, Reichardt, C, Richards, P, Roberts, H, Ross, C, Rotermund, K, Segawa, Y, Sherwin, B, Silva-Feaver, M, Siritanasak, P, Stompor, R, Suzuki, A, Tajima, O, Takakura, S, Takatori, S, Tanabe, D, Tat, R, Teply, G, Tikhomirov, A, Tomaru, T, Tsai, C, Whitehorn, N, Zahn, A, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), and 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)
Subjects: Cosmic microwave background, cosmic background radiation: polarization, CMB, Dichroic glass, 01 natural sciences, law.invention, law, Atomic and Molecular Physics, Polarization, General Materials Science, silicon: nitrogen, Instrumentation, Mathematical Physics, 010302 applied physics, Physics, Settore FIS/05, superconductivity, Detector, Detectors, Polarization (waves), Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Cardinal point, Materials Science (all), silicon: oxygen, Astrophysics - Instrumentation and Methods for Astrophysics, Transition edge sensor, performance, Astrophysics - Cosmology and Nongalactic Astrophysics, Fabrication, Sinuous antenna, Inflation, General Physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Classical Physics, FOS: Physical sciences, Telescope, Optics, Settore FIS/05 - Astronomia e Astrofisica, bolometer, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Instrumentation and Methods for Astrophysics (astro-ph.IM), detector: design, activity report, business.industry, Bolometer, and Optics, business
Abstract: 著者人数: 93名（所属. 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS): 羽澄, 昌史), Accepted: 2018-08-27, 資料番号: SA1180208000
Published: 2017

42. Erratum: 'A Measurement of the Cosmic Microwave Background B-Mode Polarization Power Spectrum at Sub-degree Scales with POLARBEAR' (2014, ApJ, 794, 171)

Author: Masashi Hazumi, P. Hyland, Kam Arnold, Y. Akiba, Frederick Matsuda, Paul L. Richards, M. Atlas, Yuji Chinone, A. E. Anthony, Amit P. S. Yadav, P. A. R. Ade, Y. Hori, A Orlando, S. Moyerman, Aaron Lee, Reijo Keskitalo, M. Navaroli, Nathan Stebor, I. Schanning, Bryan Steinbach, N. W. Halverson, Yuki Inoue, Chase Owen Shimmin, Zigmund Kermish, H. Nishino, Tucker Elleflot, M. J. Myers, G. Fabbian, Christian L. Reichardt, Eric V. Linder, Masaya Hasegawa, Kaori Hattori, E. M. Leitch, Helmuth Spieler, Theodore Kisner, Chang Feng, Meir Shimon, J. Howard, Praween Siritanasak, Brian Keating, O. Zahn, J. Peloton, Julian Borrill, D. Boettger, Darcy Barron, Radek Stompor, Marius Lungu, H. Morii, S. Takakura, A. Shimizu, Tomotake Matsumura, Hans P. Paar, William F. Grainger, Gabriel M. Rebeiz, E. Quealy, Graeme Smecher, X. Meng, D. E. Schenck, Scott Chapman, Takayuki Tomaru, A. J. Gilbert, Josquin Errard, D. Poletti, B. Wilson, W. L. Holzapfel, Aritoki Suzuki, Daniel Flanigan, Colin Ross, Nathan J. Miller, M. Le Jeune, M. A. Dobbs, Blake D. Sherwin, G. Jaehnig, Andrew H. Jaffe, Cardiff University, The Graduate University for Advanced Studies (SOKENDAI), Shonan International Village, Hayama-cho, University of Colorado, Department of Astrophysical and Planetary Sciences, Center for Astrophysics and Space Astronomy (CASA), Department of Physics, Le Conte Hall, University of California, Computational Cosmology Center, Lawrence Berkeley National Laboratory, Berkeley, Department of Physics and Atmospheric Science, Dalhousie University, Department of Physics, University of California, Berkeley, CA 94720, USA, Physics Department, McGill University, AstroParticule et Cosmologie (APC (UMR_7164)), 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), Scuola Internazionale Superiore di Studi Avanzati (SISSA), STFC Rutherford Appleton Laboratory, High Energy Accelerator Research Organization (KEK), Physics Department, Austin College, Sherman, TX 75090, USA, Imperial College London, Department of Physics, Princeton University, Department of Astronomy and Astrophysics, University of Chicago, Lawrence Berkeley National Laboratory (LBNL), Observational Cosmology Laboratory (Code 665), NASA Goddard Space Flight Center, Greenbelt, Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), Todai Institutes for Advanced Study, University of California [San Diego] (UC San Diego), University of California (UC), and Department of Physics and Astronomy, University of British Columbia
Subjects: Physics, large-scale structure of universe, Science & Technology, 0306 Physical Chemistry (Incl. Structural), Cosmic microwave background, Spectral density, Molecular, Astronomy and Astrophysics, Astrophysics, cosmic background radiation, Astronomy & Astrophysics, Polarization (waves), 0305 Organic Chemistry, Atomic, observations [cosmology], 0201 Astronomical And Space Sciences, Particle and Plasma Physics, Space and Planetary Science, Physical Sciences, astro-ph.CO, Nuclear, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astronomical and Space Sciences, Physical Chemistry (incl. Structural)
Abstract: We report an improved measurement of the cosmic microwave background B-mode polarization power spectrum with the Polarbear experiment at 150 GHz. By adding new data collected during the second season of observations (2013-2014) to re-analyzed data from the first season (2012-2013), we have reduced twofold the band-power uncertainties. The band powers are reported over angular multipoles 500 ≤ ℓ ≤ 2100, where the dominant B-mode signal is expected to be due to the gravitational lensing of E-modes. We reject the null hypothesis of no B-mode polarization at a confidence of 3.1σ including both statistical and systematic uncertainties. We test the consistency of the measured B-modes with the Λ Cold Dark Matter (ΛCDM) framework by fitting for a single lensing amplitude parameter A L = 0.60 +0.26-0.24(stat)+0.00-0.04 (inst) ± 0.14(foreground) ± 0.04(multi), where A L = 1 relative to the Planck 2015 best-fit model prediction. We obtain ±0.14(foreground) ±0.04(multi), where is the fiducial ΛCDM value.
Published: 2017

43. The POLARBEAR-2 Experiment

Author: Kam Arnold, W. Holzapfel, Tomotake Matsumura, M. Sholl, R. Stompor, N. W. Halverson, M. Atlas, Guangyuan Feng, N. Katayama, Masashi Hazumi, Colin Ross, H. Yamaguchi, Y. Akiba, Kaja Rotermund, Praween Siritanasak, Tucker Elleflot, S. Takakura, J. Borrill, Paul L. Richards, Jun-ichi Suzuki, Giulio Fabbian, O. Zahn, H. Morii, H. Nishino, G. Jaehnig, Josquin Errard, Reijo Keskitalo, Y. Hori, A. Cukierman, Scott Chapman, Takahiro Okamura, Kaori Hattori, Frederick Matsuda, Yuki Inoue, Brian Keating, C. Reichart, Yuji Chinone, Aritoki Suzuki, Suguru Takada, M. A. Dobbs, Graeme Smecher, William F. Grainger, A. J. Gilbert, Takayuki Tomaru, B. Wilson, C. Aleman, Darcy Barron, S. Moyerman, Nathan Stebor, Masaya Hasegawa, Adrian T. Lee, Theodore Kisner, M. Myers, M. Navaroli, Zigmund Kermish, and Peter A. R. Ade
Subjects: Physics, Gravitational wave, business.industry, Cosmic microwave background, Astrophysics::Instrumentation and Methods for Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Condensed Matter Physics, Polarization (waves), Noise-equivalent temperature, Atomic and Molecular Physics, and Optics, Computational physics, symbols.namesake, Gravitational lens, Optics, symbols, General Materials Science, Planck, Neutrino, Transition edge sensor, business
Abstract: We present an overview of the design and development of the POLARBEAR-2 experiment. The POLARBEAR-2 experiment is a cosmic microwave background polarimetry experiment, which aims to characterize the small angular scale B-mode signal due to gravitational lensing and search for the large angular scale B-mode signal from inflationary gravitational waves. The experiment will have a 365 mm diameter multi-chroic focal plane filled with 7,588 polarization sensitive antenna-coupled Transition Edge Sensor bolometers and will observe at 95 and 150 GHz. The focal plane is cooled to 250 mK. The bolometers will be read-out by SQUIDs with $$32\times $$ frequency domain multiplexing. The experiment will utilize high purity alumina lenses and thermal filters to achieve the required high optical throughput. A continuously rotating, cooled half-wave plate will be used to give stringent control over systematic errors. The experiment is designed to achieve a noise equivalent temperature of 5.7 $$\mu $$ K $$\sqrt{s}$$ , and this allows us to constrain the signal from the inflationary primordial gravitational corresponding to a tensor-to-scalar ratio of $$r = 0.01$$ ( $$2\sigma $$ ). POLARBEAR-2 will also be able to put a constraint on the sum of neutrino masses to 90 meV ( $$1\sigma $$ ) with POLARBEAR-2 data alone and 65 meV ( $$1\sigma $$ ) when combined with the Planck satellite. We plan to start observations in 2014 in the Atacama Desert in Chile.
Published: 2014

44. The POLARBEAR Cosmic Microwave Background Polarization Experiment

Author: Tomotake Matsumura, M. A. Dobbs, S. Moyerman, Nathan Stebor, Chase Owen Shimmin, H. Morii, P. Hyland, Masashi Hazumi, Oliver Zahn, Scott Chapman, Hans P. Paar, A. Ghribi, Masaya Hasegawa, Josquin Errard, Praween Siritanasak, Eric V. Linder, M. Le Jeune, Peter A. R. Ade, W. L. Holzapfel, Andrew H. Jaffe, Yuji Chinone, Aritoki Suzuki, Adrian T. Lee, Julian Borrill, Nathan J. Miller, Gabriel M. Rebeiz, William F. Grainger, Brian Keating, A. E. Anthony, Kam Arnold, Theodore Kisner, Takayuki Tomaru, Paul L. Richards, N. W. Halverson, J. Peloton, Daniel Flanigan, Amit P. S. Yadav, M. J. Myers, Jonathon Howard, H. Nishino, G. Fabbian, D. Boettger, Reijo Keskitalo, G. Jaehnig, Bryan Steinbach, Zigmund Kermish, A. Shimizu, Colin Ross, Meir Shimon, Jennifer Edwards, X. Meng, Carole Tucker, Radek Stompor, M. Sholl, E. Quealy, Christian L. Reichardt, Gary A. Fuller, Kaori Hattori, Helmuth Spieler, Darcy Barron, Marius Lungu, and Frederick Matsuda
Subjects: Physics, Gravitational wave, Bolometer, Cosmic microwave background, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Lenslet, Condensed Matter Physics, Polarization (waves), Atomic and Molecular Physics, and Optics, law.invention, Cardinal point, Gravitational lens, law, Extremely high frequency, General Materials Science
Abstract: The polarbear cosmic microwave background (CMB) polarization experiment has been observing since early 2012 from its 5,200 m site in the Atacama Desert in Northern Chile. polarbear’s measurements will characterize the expected CMB polarization due to gravitational lensing by large scale structure, and search for the possible B-mode polarization signature of inflationary gravitational waves. polarbear’s 250 mK focal plane detector array consists of 1,274 polarization-sensitive antenna-coupled bolometers, each with an associated lithographed band-defining filter and contacting dielectric lenslet, an architecture unique in current CMB experiments. The status of the polarbear instrument, its focal plane, and the analysis of its measurements are presented.
Published: 2014

45. Making maps of cosmic microwave background polarization for B-mode studies: the POLARBEAR example

Author: Eric V. Linder, Josquin Errard, Davide Poletti, Tucker Elleflot, Osamu Tajima, Giulio Fabbian, Theodore Kisner, Julian Borrill, Maude Le Jeune, Grantland Hall, Aritoki Suzuki, Akito Kusaka, L. Howe, Praween Siritanasak, Yuji Chinone, Ari Cukierman, Brian Keating, D. Leon, M. Navaroli, Kam Arnold, Reijo Keskitalo, Giuseppe Puglisi, Bryan Steinbach, Stephen M. Feeney, Frederick Matsuda, Colin Ross, J. Peloton, Nathan Whitehorn, Charles Hill, Andrew H. Jaffe, Masashi Hazumi, Christian L. Reichardt, John Groh, Neil Goeckner-Wald, Yuki Inoue, Scott Chapman, Darcy Barron, L. N. Lowry, Nathan Stebor, Masaya Hasegawa, Oliver Jeong, S. Beckman, Hans P. Paar, Carlo Baccigalupi, Nobuhiko Katayama, Grant Teply, Radek Stompor, A. Ducout, Adrian T. Lee, Science and Technology Facilities Council, Science and Technology Facilities Council (STFC), AstroParticule et Cosmologie (APC (UMR_7164)), 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), Institut Lagrange de Paris, Sorbonne Universités, 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), 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), AstroParticule et Cosmologie ( APC - UMR 7164 ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Observatoire de Paris-Université Paris Diderot - Paris 7 ( UPD7 ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ), Laboratoire de Physique Nucléaire et de Hautes Énergies ( LPNHE ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Paris Diderot - Paris 7 ( UPD7 ) -Centre National de la Recherche Scientifique ( CNRS ), 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)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Sorbonne Université (SU), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Poletti, D, Fabbian, G, Le Jeune, M, Peloton, J, Arnold, K, Baccigalupi, C, Barron, D, Beckman, S, Borrill, J, Chapman, S, Chinone, Y, Cukierman, A, Ducout, A, Elleflot, T, Errard, J, Feeney, S, Goeckner-Wald, N, Groh, J, Hall, G, Hasegawa, M, Hazumi, M, Hill, C, Howe, L, Inoue, Y, Jaffe, A, Jeong, O, Katayama, N, Keating, B, Keskitalo, R, Kisner, T, Kusaka, A, Lee, A, Leon, D, Linder, E, Lowry, L, Matsuda, F, Navaroli, M, Paar, H, Puglisi, G, Reichardt, C, Ross, C, Siritanasak, P, Stebor, N, Steinbach, B, Stompor, R, Suzuki, A, Tajima, O, Teply, G, and Whitehorn, N
Subjects: Computer science, POWER SPECTRUM, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Cosmic microwave background, cosmic background radiation: polarization, cosmic background radiation, STATISTICAL-ANALYSIS, 01 natural sciences, Spectral line, estimator, 010303 astronomy & astrophysics, [ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], media_common, Settore FIS/05, Estimator, Polarization (waves), observations [cosmology], 3. Good health, PLANCK, B-mode, DATA SETS, Cosmology: Observation, Physical Sciences, astro-ph.CO, Astrophysics - Instrumentation and Methods for Astrophysics, Algorithm, cosmology: observations, performance, Astronomical and Space Sciences, Astrophysics - Cosmology and Nongalactic Astrophysics, noise, Cosmology and Nongalactic Astrophysics (astro-ph.CO), media_common.quotation_subject, Infrasound, FOS: Physical sciences, Astronomy & Astrophysics, Settore FIS/05 - Astronomia e Astrofisica, 0103 physical sciences, DESTRIPING TECHNIQUE, structure, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], FIELD, numerical calculations, Instrumentation and Methods for Astrophysics (astro-ph.IM), Science & Technology, 010308 nuclear & particles physics, MAKING ALGORITHM, Astronomy and Astrophysics, 0201 Astronomical And Space Sciences, frequency: low, Space and Planetary Science, Sky, correlation, atmosphere, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], astro-ph.IM
Abstract: Analysis of cosmic microwave background (CMB) datasets typically requires some filtering of the raw time-ordered data. Filtering is frequently used to minimize the impact of low frequency noise, atmospheric contributions and/or scan synchronous signals on the resulting maps. In this work we explicitly construct a general filtering operator, which can unambiguously remove any set of unwanted modes in the data, and then amend the map-making procedure in order to incorporate and correct for it. We show that such an approach is mathematically equivalent to the solution of a problem in which the sky signal and unwanted modes are estimated simultaneously and the latter are marginalized over. We investigate the conditions under which this amended map-making procedure can render an unbiased estimate of the sky signal in realistic circumstances. We then study the effects of time-domain filtering on the noise correlation structure in the map domain, as well as impact it may have on the performance of the popular pseudo-spectrum estimators. We conclude that although maps produced by the proposed estimators arguably provide the most faithful representation of the sky possible given the data, they may not straightforwardly lead to the best constraints on the power spectra of the underlying sky signal and special care may need to be taken to ensure this is the case. By contrast, simplified map-makers which do not explicitly correct for time-domain filtering, but leave it to subsequent steps in the data analysis, may perform equally well and be easier and faster to implement. We focus on polarization-sensitive measurements targeting the B-mode component of the CMB signal and apply the proposed methods to realistic simulations based on characteristics of an actual CMB polarization experiment, POLARBEAR., Comment: 26 pages
Published: 2016

46. Erratum to: The SCUBA-2 web survey: I. Observations of CO(3–2) in hyper-luminous QSO fields

Author: Douglas Scott, Arif Babul, Yuichi Matsuda, Colin Ross, Melanie Krips, Ryley Hill, Yu Gao, Charles C. Steidel, Ryan F. Trainor, Kevin Lacaille, Trystyn A. M. Berg, Gwen C. Rudie, Scott Chapman, Frank Bertoldi, and Ian Smail
Subjects: Physics, Space and Planetary Science, Astronomy, Astronomy and Astrophysics, Web survey
Published: 2019

47. SuperSpec: development towards a full-scale filter bank

Author: Erik Shirokoff, Philip Daniel Mauskopf, Roger O'Brient, Henry G. LeDuc, R. Williamson, Christopher M. McKenney, T. Reck, Jonas Zmuidzinas, Colin Ross, Steve Hailey-Dunsheath, Peter S. Barry, Jordan Wheeler, Ryan McGeehan, Matthew I. Hollister, Scott Chapman, Stephen Padin, Jason Glenn, Charles M. Bradford, George Che, Carole Tucker, C. Shiu, Attila Kovács, Holland, Wayne S., and Zmuidzinas, Jonas
Subjects: Physics, Spectrometer, business.industry, Noise (signal processing), Detector, 02 engineering and technology, 021001 nanoscience & nanotechnology, Filter bank, 01 natural sciences, Responsivity, Optics, 0103 physical sciences, Extremely high frequency, 010306 general physics, 0210 nano-technology, business, Noise-equivalent power, Microwave
Abstract: SuperSpec is a new spectrometer-on-a-chip technology for submm/mm-wave spectroscopy. SuperSpec stands out from other direct-detection submm spectrometer technologies in that the detectors are coupled to a series of resonant filters along a single microwave feedline instead of using dispersive optics. SuperSpec makes use of kinetic inductance detectors (KIDs) to detect radiation in this filter bank. The small profile of this design makes SuperSpec a natural choice to produce a multi-object spectrometer for tomographic mapping or galaxy redshift surveys. We have recently fabricated a device that is a 50 channel subset of a full 280 channel filter bank, which would cover the 190 - 310 GHz range at R = 275. Analysis of the data from this device informs us of the potential design modifications to enable a high-yield background-limited SuperSpec spectrometer. The results indicate that this subset filter bank can scale up to a full filter bank with only a few collisions in readout space and less than 20% variation in responsivity for the detectors. Additionally, the characterization of this and other prototype devices suggests that the noise performance is limited by generation-recombination noise. Finally, we find that the detectors are sufficiently sensitive for ground-based spectroscopy at R = 100, appropriate for tomographic mapping experiments. Further modifications are required to reach the background limit for R = 400, ideal for spectroscopy of individual galaxies.
Published: 2016

48. Sexual Trauma at the Salpetriere

Author: Colin, Ross
Subjects: Adult, Hospitals, Psychiatric, Paris, Young Adult, Dissociative Identity Disorder, Sex Offenses, Hysteria, Humans, Female, History, 19th Century, Middle Aged
Abstract: Jean-Martin Charcot who studied hysteria at the Salpetriere hospital in Paris late in the nineteenth century is often portrayed as a great neurologist. According to standard accounts, his female hysterical patients imitated the seizures of epileptic patients at the Salpetriere in order to get attention because of their dramatic, self-centered natures. They were also prone to making false allegations of childhood sexual abuse. In fact, the so-called hysterical seizures were often abreactions of rapes. The patients commonly had extensive childhood sexual abuse histories, and sexual misconduct by doctors was endemic at the Salpetriere. The pathological counter-transference towards "hysterical women" at the Salpetriere has been repeated in the twentieth and twenty-first centuries in attitudes expressed towards dissociative identity disorder.
Published: 2016

49. Modeling Atmospheric Emission for CMB Ground-based Observations

Author: Nathan Stebor, Tomotake Matsumura, Christian L. Reichardt, Michael J. Myers, S. Takakura, Masaya Hasegawa, Giuseppe Puglisi, Adrian T. Lee, Kaori Hattori, Charles A. Hill, Julian Borrill, Nobuhiko Katayama, K. M. Rotermund, Stephen M. Feeney, Kam Arnold, Davide Poletti, E. M. Leitch, Darcy Barron, Neil Goeckner-Wald, Yuji Chinone, Peter A. R. Ade, Nathan Whitehorn, M. Atlas, Y. Akiba, Greg Jaehnig, Andrew H. Jaffe, Chang Feng, Scott Chapman, Gabriel M. Rebeiz, Brian Keating, A. Gilbert, Colin Ross, M. Navaroli, Aritoki Suzuki, Tucker Elleflot, Graeme Smecher, Hans P. Paar, Ted Kisner, J. Peloton, Oliver Jeong, Amit P. S. Yadav, Giulio Fabbian, J. P. Kaufman, D. E. Schenck, N. W. Halverson, A. Ducout, A. Tikhomirov, Masashi Hazumi, Takayuki Tomaru, Radek Stompor, Praween Siritanasak, Zigmund Kermish, Oliver Zahn, Blake D. Sherwin, D. Boettger, M. Le Jeune, Takahiro Okamura, A. Cukierman, B. Wilson, D. Leon, Nathan J. Miller, Reijo Keskitalo, Bryan Steinbach, M. A. Dobbs, Yuki Inoue, Josquin Errard, W. L. Holzapfel, Y. Hori, Jacques Delabrouille, Paul L. Richards, Frederick Matsuda, H. Nishino, Osamu Tajima, Eric V. Linder, Carlo Baccigalupi, Biological Imaging Core, Department of Biological Sciences, University of Notre Dame [Indiana] (UND), AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Regional Virus Laboratory, Royal Victoria Hospital, Laboratoire de glaciologie et géophysique de l'environnement (LGGE), 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 Joseph Fourier - Grenoble 1 (UJF)-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 Joseph Fourier - Grenoble 1 (UJF)-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), Department of Physics [Berkeley], University of California [Berkeley], University of California-University of California, Korea Research Institute for Human Settlements (KRIHS), Korea Research Institute for Human Settlements, Department of Endocrinology, Universiteit Gent = Ghent University [Belgium] (UGENT), Centre interdisciplinaire de recherches sur les valeurs, les idées, les identités et les compétences en Éducation et en formation (CIVIIC), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU), Department of Computer Science [Amherst], University of Massachusetts [Amherst] (UMass Amherst), University of Massachusetts System (UMASS)-University of Massachusetts System (UMASS), Department of Atmospheric Science [Laramie], University of Wyoming (UW), The University of Tokyo (UTokyo), Carnegie Mellon University [Pittsburgh] (CMU), Columbia University [New York], University of California [San Diego] (UC San Diego), University of California, 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), Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Joseph Fourier - Grenoble 1 (UJF)-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 Joseph Fourier - Grenoble 1 (UJF)-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)-Centre National de la Recherche Scientifique (CNRS), University of California [Berkeley] (UC Berkeley), University of California (UC)-University of California (UC), Universiteit Gent = Ghent University (UGENT), University of California (UC), 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), 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)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS), Ghent University [Belgium] (UGENT), The University of Tokyo, Science and Technology Facilities Council (STFC), Imperial College Trust, Science and Technology Facilities Council [2006-2012], 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), Errard, J, Ade, P, Akiba, Y, Arnold, K, Atlas, M, Baccigalupi, C, Barron, D, Boettger, D, Borrill, J, Chapman, S, Chinone, Y, Cukierman, A, Delabrouille, J, Dobbs, M, Ducout, A, Elleflot, T, Fabbian, G, Feng, C, Feeney, S, Gilbert, A, Goeckner-Wald, N, Halverson, N, Hasegawa, M, Hattori, K, Hazumi, M, Hill, C, Holzapfel, W, Hori, Y, Inoue, Y, Jaehnig, G, Jaffe, A, Jeong, O, Katayama, N, Kaufman, J, Keating, B, Kermish, Z, Keskitalo, R, Kisner, T, Le Jeune, M, Lee, A, Leitch, E, Leon, D, Linder, E, Matsuda, F, Matsumura, T, Miller, N, Myers, M, Navaroli, M, Nishino, H, Okamura, T, Paar, H, Peloton, J, Poletti, D, Puglisi, G, Rebeiz, G, Reichardt, C, Richards, P, Ross, C, Rotermund, K, Schenck, D, Sherwin, B, Siritanasak, P, Smecher, G, Stebor, N, Steinbach, B, Stompor, R, Suzuki, A, Tajima, O, Takakura, S, Tikhomirov, A, Tomaru, T, Whitehorn, N, Wilson, B, Yadav, A, and Zahn, O
Subjects: COMPONENT SEPARATION, POLARIZATION, Cosmology and Nongalactic Astrophysics (astro-ph.CO), 0306 Physical Chemistry (Incl. Structural), atmospheric effect, Cosmic microwave background, FOS: Physical sciences, Astronomy & Astrophysics, 0305 Organic Chemistry, 01 natural sciences, NOISE, Weather station, Atmosphere, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Settore FIS/05 - Astronomia e Astrofisica, 0103 physical sciences, Instrumentation and Methods for Astrophysics (astro-ph.IM), 010303 astronomy & astrophysics, Physics::Atmospheric and Oceanic Physics, ComputingMilieux_MISCELLANEOUS, SITES, Science & Technology, Settore FIS/05, 010308 nuclear & particles physics, Linear polarization, Detector, Astronomy and Astrophysics, FLUCTUATIONS, methods: data analysis, Computational physics, 0201 Astronomical And Space Sciences, Wavelength, methods: observational, 13. Climate action, Space and Planetary Science, Physical Sciences, astro-ph.CO, TURBULENCE, Environmental science, Millimeter, MICROWAVE BACKGROUND EXPERIMENTS, Astrophysics - Instrumentation and Methods for Astrophysics, methods: data analysi, Noise (radio), Astrophysics - Cosmology and Nongalactic Astrophysics, astro-ph.IM, atmospheric effects
Abstract: Atmosphere is one of the most important noise sources for ground-based cosmic microwave background (CMB) experiments. By increasing optical loading on the detectors, it amplifies their effective noise, while its fluctuations introduce spatial and temporal correlations between detected signals. We present a physically motivated 3d-model of the atmosphere total intensity emission in the millimeter and sub-millimeter wavelengths. We derive a new analytical estimate for the correlation between detectors time-ordered data as a function of the instrument and survey design, as well as several atmospheric parameters such as wind, relative humidity, temperature and turbulence characteristics. Using an original numerical computation, we examine the effect of each physical parameter on the correlations in the time series of a given experiment. We then use a parametric-likelihood approach to validate the modeling and estimate atmosphere parameters from the POLARBEAR-I project first season data set. We derive a new 1.0% upper limit on the linear polarization fraction of atmospheric emission. We also compare our results to previous studies and weather station measurements. The proposed model can be used for realistic simulations of future ground-based CMB observations., Comment: 20 pages, 16 figures
Published: 2015

50. The POLARBEAR-2 and the Simons Array Experiment

Author: Peter A. R. Ade, O. Zahn, Gabriel M. Rebeiz, Suguru Takada, Josquin Errard, D. Poletti, Zigmund Kermish, K. Mizukami, Carlo Baccigalupi, Darcy Barron, Neil Goeckner-Wald, Theodore Kisner, Christopher Raum, G. Hall, R. Dunner, Joshua Montgomery, Tucker Elleflot, Paul L. Richards, A. J. Gilbert, Stephen M. Feeney, M. Navaroli, T. Fujino, Nathan Stebor, Aritoki Suzuki, S. Takatori, D. Boettger, M. A. Dobbs, J. Kaufman, T. Yamashita, Eric V. Linder, Giulio Fabbian, Y. Akiba, Adrian T. Lee, A. Tikhomirov, B. Westbrook, Tomotake Matsumura, Jose H. Groh, Amy N. Bender, Masaya Hasegawa, Scott Chapman, Brian Keating, Colin Ross, Nathan J. Miller, Y. Hori, Radek Stompor, L. Howe, Reijo Keskitalo, A. Ducout, H. Nishino, A. Cukierman, G. Jaehnig, Takayuki Tomaru, I. Shirley, K. M. Rotermund, Osamu Tajima, Masashi Hazumi, D. Leon, Christian L. Reichardt, Kam Arnold, Blake D. Sherwin, Praween Siritanasak, J. Peloton, Kaori Hattori, T. Hamada, L. Lowry, M. Le Jeune, C. Aleman, Giuseppe Puglisi, Jun-ichi Suzuki, F. Irie, Akito Kusaka, W. Holzapfel, O. B. Jeong, Julian Borrill, Chang Feng, A. Zahn, Yuji Chinone, Nobuhiko Katayama, N. Whitehorn, Y. Segawa, K. Kazemzadeh, S. Takakura, Andrew H. Jaffe, N. W. Halverson, T. de Haan, Yuki Inoue, Frederick Matsuda, C. Hill, G. Fuller, Université Paris-Sorbonne (UP4), AstroParticule et Cosmologie (APC (UMR_7164)), 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), POLARBEAR, 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)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), 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), Suzuki, A, Ade, P, Akiba, Y, Aleman, C, Arnold, K, Baccigalupi, C, Barch, B, Barron, D, Bender, A, Boettger, D, Borrill, J, Chapman, S, Chinone, Y, Cukierman, A, Dobbs, M, Ducout, A, Dunner, R, Elleflot, T, Errard, J, Fabbian, G, Feeney, S, Feng, C, Fujino, T, Fuller, G, Gilbert, A, Goeckner-Wald, N, Groh, J, Haan, T, Hall, G, Halverson, N, Hamada, T, Hasegawa, M, Hattori, K, Hazumi, M, Hill, C, Holzapfel, W, Hori, Y, Howe, L, Inoue, Y, Irie, F, Jaehnig, G, Jaffe, A, Jeong, O, Katayama, N, Kaufman, J, Kazemzadeh, K, Keating, B, Kermish, Z, Keskitalo, R, Kisner, T, Kusaka, A, Jeune, M, Lee, A, Leon, D, Linder, E, Lowry, L, Matsuda, F, Matsumura, T, Miller, N, Mizukami, K, Montgomery, J, Navaroli, M, Nishino, H, Peloton, J, Poletti, D, Puglisi, G, Rebeiz, G, Raum, C, Reichardt, C, Richards, P, Ross, C, Rotermund, K, Segawa, Y, Sherwin, B, Shirley, I, Siritanasak, P, Stebor, N, Stompor, R, Suzuki, J, Tajima, O, Takada, S, Takakura, S, Takatori, S, Tikhomirov, A, Tomaru, T, Westbrook, B, Whitehorn, N, Yamashita, T, Zahn, A, Zahn, O, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Université Paris-Sorbonne ( UP4 ), AstroParticule et Cosmologie ( APC - UMR 7164 ), and Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Observatoire de Paris-Université Paris Diderot - Paris 7 ( UPD7 ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA )
Subjects: Cosmic microwave background, Inflation, Gravitational weak lensing, Polarization, B-mode, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], cosmic background radiation, 7. Clean energy, 01 natural sciences, pixel, optical, General Materials Science, neutrino: mass, [ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Weak gravitational lensing, Mathematical Physics, Physics, Settore FIS/05, Astrophysics::Instrumentation and Methods for Astrophysics, Polarization (waves), Condensed Matter Physics, Atomic and Molecular Physics, and Optics, astro-ph.CO, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics, General Physics, noise, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Frequency band, Classical Physics, Cosmic background radiation, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Noise-equivalent temperature, Optics, Settore FIS/05 - Astronomia e Astrofisica, gravitation: lens, bolometer, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Instrumentation and Methods for Astrophysics (astro-ph.IM), 010308 nuclear & particles physics, business.industry, Gravitational wave, gravitational radiation, temperature, sensitivity, Transition edge sensor, business, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], astro-ph.IM
Abstract: We present an overview of the design and status of the \Pb-2 and the Simons Array experiments. \Pb-2 is a Cosmic Microwave Background polarimetry experiment which aims to characterize the arc-minute angular scale B-mode signal from weak gravitational lensing and search for the degree angular scale B-mode signal from inflationary gravitational waves. The receiver has a 365~mm diameter focal plane cooled to 270~milli-Kelvin. The focal plane is filled with 7,588 dichroic lenslet-antenna coupled polarization sensitive Transition Edge Sensor (TES) bolometric pixels that are sensitive to 95~GHz and 150~GHz bands simultaneously. The TES bolometers are read-out by SQUIDs with 40 channel frequency domain multiplexing. Refractive optical elements are made with high purity alumina to achieve high optical throughput. The receiver is designed to achieve noise equivalent temperature of 5.8~$\mu$K$_{CMB}\sqrt{s}$ in each frequency band. \Pb-2 will deploy in 2016 in the Atacama desert in Chile. The Simons Array is a project to further increase sensitivity by deploying three \Pb-2 type receivers. The Simons Array will cover 95~GHz, 150~GHz and 220~GHz frequency bands for foreground control. The Simons Array will be able to constrain tensor-to-scalar ratio and sum of neutrino masses to $\sigma(r) = 6\times 10^{-3}$ at $r = 0.1$ and $\sum m_\nu (\sigma =1)$ to 40 meV., Comment: Accepted to Journal of Low Temperature Physics LTD16 Special Issue, Low Temperature Detector 16 Conference Proceedings, 5 pages, 1 figure
Published: 2015

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