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Your search keyword '"Behroozi, P."' showing total 10 results
Start Over Author "Behroozi, P." Topic fos: physical sciences
10 results on '"Behroozi, P."'

1. Galaxy Morphology from $z\sim6$ through the eyes of JWST

Author

Huertas-Company, M., Iyer, K. G., Angeloudi, E., Bagley, M. B., Finkelstein, S. L., Kartaltepe, J., Sarmiento, R., Vega-Ferrero, J., Haro, P. Arrabal, Behroozi, P., Buitrago, F., Cheng, Y., Costantin, L., Dekel, A., Dickinson, M., Elbaz, D., Grogin, N. A., Hathi, N. P., Holwerda, B. W., Koekemoer, A. M., Lucas, R. A., Papovich, C., Pérez-González, P. G., Pirzkal, N., Seillé, L-M., de la Vega, A., Wuyts, S., Yang, G., Yung, L. Y. A., Observatoire de Paris - Site de Paris (OP), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Université Paris 13 (UP13), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Astrophysique de Marseille (LAM), and Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO), Astrophysics of Galaxies (astro-ph.GA), FOS: Physical sciences, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We analyze the Near Infrared ($\sim0.8-1\mu$m) rest-frame morphologies of galaxies with $\log M_*/M_\odot>9$ in the redshift range $010.5$) at $z\sim5$, and bulge-dominated galaxies also exist at these early epochs, confirming a rich and evolved morphological diversity of galaxies $\sim1$ Gyr after the Big Bang. Finally, we find that the morphology-quenching relation is already in place for massive galaxies at $z>3$, with massive quiescent galaxies ($\log M_*/M_\odot>10.5$) being predominantly bulge-dominated., Comment: Submitted to A&A, comments welcome

Published
2023

2. CEERS Key Paper VI: JWST/MIRI Uncovers a Large Population of Obscured AGN at High Redshifts

Author

Yang, G., Caputi, K. I., Papovich, C., Haro, P. Arrabal, Bagley, M. B., Behroozi, P., Bell, E. F., Bisigello, L., Buat, V., Burgarella, D., Cheng, Y., Cleri, N. J., Dave, R., Dickinson, M., Elbaz, D., Ferguson, H. C., Finkelstein, S. L., Grogin, N. A., Hathi, N. P., Hirschmann, M., Holwerda, B. W., Huertas-Company, M., Hutchison, T., Iani, E., Kartaltepe, J. S., Kirkpatrick, A., Kocevski, D. D., Koekemoer, A. M., Kokorev, V., Larson, R. L., Lucas, R. A., Perez-Gonzalez, P. G., Rinaldi, P., Shen, L., Trump, J. R., de la Vega, A., Yung, L. Y. A., and Zavala, J. A.

Subjects
Astrophysics of Galaxies (astro-ph.GA), FOS: Physical sciences, Astrophysics - Astrophysics of Galaxies
Abstract

Mid-infrared observations are powerful in identifying heavily obscured Active Galactic Nuclei (AGN) which have weak emission in other wavelengths. Data from the Mid-Infrared Instrument (MIRI) onboard JWST provides an excellent opportunity to perform such studies. We take advantage of the MIRI imaging data from the Cosmic Evolution Early Release Science Survey (CEERS) to investigate the AGN population in the distant universe. We estimate the source properties of MIRI-selected objects by utilizing spectral energy distribution (SED) modelling, and classify them into star-forming galaxies (SF), SF-AGN mixed objects, and AGN. The source numbers of these types are 418, 111, and 31, respectively, from 4 MIRI pointings covering $\sim 9$ arcmin$^2$. The sample spans a redshift range of $\approx 0$--5. We derive the median SEDs for all three source types, respectively, and publicly release them. The median MIRI SED of AGN is similar to the typical SEDs of hot dust-obscured galaxies and Seyfert 2s, for which the mid-IR SEDs are dominantly from AGN-heated hot dust. Based on our SED-fit results, we estimate the black-hole accretion density (BHAD; i.e., total BH growth rate per comoving volume) as a function of redshift. At $z3$, we identify a total of 27 AGN and SF-AGN mixed objects, leading to that our high-$z$ BHAD is substantially higher than the X-ray results ($\sim 0.5$ dex at $z \approx 3$--5). This difference indicates MIRI can identify a large population of heavily obscured AGN missed by X-ray surveys at high redshifts., ApJL in press, as part of the CEERS Focus Issue. 13 pages and 7 figures (median SEDs in Fig. 5 are available upon request)

Published
2023
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3. Observing Galaxy Evolution in the Context of Large-Scale Structure

Author

Dickinson, M., Wang, Y., Bartlett, J., Behroozi, P., Brinchmann, J., Capak, P., Chary, R., Cimatti, A., Coil, A., Conroy, C., Daddi, E., Donahue, M., Eisenhardt, P., Ferguson, H.C., Glazebrook, K., Furlanetto, S., Gonzalez, A., Helou, G., Hopkins, P.F., Kartaltepe, J., Lee, J., Malhotra, S., Marshall, J., Newman, J.A., Orsi, A., Rhoads, J., Rhodes, J., Shapley, A., and Wechsler, R.H.

Subjects
Astrophysics of Galaxies (astro-ph.GA), FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics - Astrophysics of Galaxies, Astrophysics::Galaxy Astrophysics
Abstract

Galaxies form and evolve in the context of their local and large-scale environments. Their baryonic content that we observe with imaging and spectroscopy is intimately connected to the properties of their dark matter halos, and to their location in the "cosmic web" of large-scale structure. Very large spectroscopic surveys of the local universe (e.g., SDSS and GAMA) measure galaxy positions (location within large-scale structure), statistical clustering (a direct constraint on dark matter halo masses), and spectral features (measuring physical conditions of the gas and stars within the galaxies, as well as internal velocities). Deep surveys with the James Webb Space Telescope (JWST) will revolutionize spectroscopic measurements of redshifts and spectral properties for galaxies out to the epoch of reionization, but with numerical statistics and over cosmic volumes that are too small to map large-scale structure and to constrain halo properties via clustering. Here, we consider advances in understanding galaxy evolution that would be enabled by very large spectroscopic surveys at high redshifts: very large numbers of galaxies (outstanding statistics) over large co-moving volumes (large-scale structure on all scales) over broad redshift ranges (evolution over most of cosmic history). The required observational facility can be established as part of the probe portfolio by NASA within the next decade., Comment: 8 pages (including cover page and references), 3 figures. Science white paper submitted to Astro2020. arXiv admin note: substantial text overlap with arXiv:1802.01539

Published
2019
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4. SATELLITE QUENCHING and GALACTIC CONFORMITY at 0.3 < z < 2.5

Author

Kawinwanichakij, L, Quadri, RF, Papovich, C, Kacprzak, GG, Labbé, I, Spitler, LR, Straatman, CMS, Tran, KVH, Allen, R, Behroozi, P, Cowley, M, Dekel, A, Glazebrook, K, Hartley, WG, Kelson, DD, Koo, DC, Lee, SK, Lu, Y, Nanayakkara, T, Persson, SE, Primack, J, Tilvi, V, Tomczak, AR, and Van Dokkum, P

Subjects
statistics [galaxies], Cosmology and Nongalactic Astrophysics (astro-ph.CO), Astrophysics::High Energy Astrophysical Phenomena, astro-ph.GA, FOS: Physical sciences, Molecular, Astrophysics::Cosmology and Extragalactic Astrophysics, Astronomy & Astrophysics, Atomic, Physical Chemistry, halos [galaxies], Particle and Plasma Physics, Astrophysics of Galaxies (astro-ph.GA), astro-ph.CO, Astrophysics::Solar and Stellar Astrophysics, Nuclear, Astrophysics::Earth and Planetary Astrophysics, Astrophysics::Galaxy Astrophysics, evolution [galaxies], high-redshift [galaxies], Astronomical and Space Sciences, Physical Chemistry (incl. Structural)
Abstract

We measure the evolution of the quiescent fraction and quenching efficiency of satellites around star-forming and quiescent central galaxies with stellar mass $\log(M_{\mathrm{cen}}/M_{\odot})>10.5$ at $0.39.3$. Satellites for both star-forming and quiescent central galaxies have higher quiescent fractions compared to field galaxies matched in stellar mass at all redshifts. We also observe "galactic conformity": satellites around quiescent centrals are more likely to be quenched compared to the satellites around star-forming centrals. In our sample, this conformity signal is significant at $\gtrsim3��$ for $0.6, Submitted to ApJ after first round of referee comments, 22 pages, 12 figures

Published
2016
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5. The galaxy stellar mass function at 3.5

Author

Grazian, A., Fontana, A., Santini, P., Dunlop, J. S., Ferguson, H. C., Castellano, M., Amorin, R., Ashby, M. L. N., Barro, G., Behroozi, P., Boutsia, K., Caputi, K. I., Chary, R. R., Dekel, A., Dickinson, M. A., Faber, S. M., Fazio, G. G., Finkelstein, S. L., Galametz, A., Giallongo, E., Giavalisco, M., Grogin, N. A., Guo, Y., Kocevski, D., Koekemoer, A. M., Koo, D. C., Lee, K. -S., Lu, Y., Merlin, E., Mobasher, B., Nonino, M., Papovich, C., Paris, D., Pentericci, L., Reddy, N., Renzini, A., Salmon, B., Salvato, M., Sommariva, V., Song, M., and Vanzella, E.

Subjects
Astrophysics of Galaxies (astro-ph.GA), astro-ph.GA, Astrophysics::Solar and Stellar Astrophysics, FOS: Physical sciences, Astrophysics::Earth and Planetary Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics::Galaxy Astrophysics
Abstract

The galaxy stellar mass function (GSMF) at high-z provides key information on star-formation history and mass assembly in the young Universe. We aimed to use the unique combination of deep optical/NIR/MIR imaging provided by HST, Spitzer and the VLT in the CANDELS-UDS, GOODS-South, and HUDF fields to determine the GSMF over the redshift range 3.54. These results confirm the unique synergy of the CANDELS+HUDF, HUGS, and SEDS surveys for the discovery and study of moderate/low-mass galaxies at high redshifts., 26 pages, 23 figures. Accepted for publication on A&A

Published
2014
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6. CEERS Key Paper V: A triality on the nature of HST-dark galaxies

Author

Pablo G. Pérez-González, Guillermo Barro, Marianna Annunziatella, Luca Costantin, Ángela García-Argumánez, Elizabeth J. McGrath, Rosa M. Mérida, Jorge A. Zavala, Pablo Arrabal Haro, Micaela B. Bagley, Bren E. Backhaus, Peter Behroozi, Eric F. Bell, Laura Bisigello, Véronique Buat, Antonello Calabrò, Caitlin M. Casey, Nikko J. Cleri, Rosemary T. Coogan, M. C. Cooper, Asantha R. Cooray, Avishai Dekel, Mark Dickinson, David Elbaz, Henry C. Ferguson, Steven L. Finkelstein, Adriano Fontana, Maximilien Franco, Jonathan P. Gardner, Mauro Giavalisco, Carlos Gómez-Guijarro, Andrea Grazian, Norman A. Grogin, Yuchen Guo, Marc Huertas-Company, Shardha Jogee, Jeyhan S. Kartaltepe, Lisa J. Kewley, Allison Kirkpatrick, Dale D. Kocevski, Anton M. Koekemoer, Arianna S. Long, Jennifer M. Lotz, Ray A. Lucas, Casey Papovich, Nor Pirzkal, Swara Ravindranath, Rachel S. Somerville, Sandro Tacchella, Jonathan R. Trump, Weichen Wang, Stephen M. Wilkins, Stijn Wuyts, Guang Yang, L. Y. Aaron Yung, Pérez-González, PG [0000-0003-4528-5639], Barro, G [0000-0001-6813-875X], Annunziatella, M [0000-0002-8053-8040], Costantin, L [0000-0001-6820-0015], García-Argumánez, Á [0000-0002-8365-5525], McGrath, EJ [0000-0001-8688-2443], Mérida, RM [0000-0001-8115-5845], Zavala, JA [0000-0002-7051-1100], Haro, PA [0000-0002-7959-8783], Bagley, MB [0000-0002-9921-9218], Backhaus, BE [0000-0001-8534-7502], Behroozi, P [0000-0002-2517-6446], Bell, EF [0000-0002-5564-9873], Bisigello, L [0000-0003-0492-4924], Buat, V [0000-0003-3441-903X], Calabrò, A [0000-0003-2536-1614], Casey, CM [0000-0002-0930-6466], Cleri, NJ [0000-0001-7151-009X], Coogan, RT [0000-0002-4343-0479], Cooper, MC [0000-0003-1371-6019], Cooray, AR [0000-0002-3892-0190], Dekel, A [0000-0003-4174-0374], Dickinson, M [0000-0001-5414-5131], Elbaz, D [0000-0002-7631-647X], Ferguson, HC [0000-0001-7113-2738], Finkelstein, SL [0000-0001-8519-1130], Fontana, A [0000-0003-3820-2823], Franco, M [0000-0002-3560-8599], Gardner, JP [0000-0003-2098-9568], Giavalisco, M [0000-0002-7831-8751], Gómez-Guijarro, C [0000-0002-4085-9165], Grazian, A [0000-0002-5688-0663], Grogin, NA [0000-0001-9440-8872], Guo, Y [0000-0002-4162-6523], Huertas-Company, M [0000-0002-1416-8483], Jogee, S [0000-0002-1590-0568], Kartaltepe, JS [0000-0001-9187-3605], Kewley, LJ [0000-0001-8152-3943], Kirkpatrick, A [0000-0002-1306-1545], Kocevski, DD [0000-0002-8360-3880], Koekemoer, AM [0000-0002-6610-2048], Long, AS [0000-0002-7530-8857], Lotz, JM [0000-0003-3130-5643], Lucas, RA [0000-0003-1581-7825], Papovich, C [0000-0001-7503-8482], Pirzkal, N [0000-0003-3382-5941], Ravindranath, S [0000-0002-5269-6527], Somerville, RS [0000-0002-6748-6821], Tacchella, S [0000-0002-8224-4505], Trump, JR [0000-0002-1410-0470], Wang, W [0000-0002-9593-8274], Wilkins, SM [0000-0003-3903-6935], Wuyts, S [0000-0003-3735-1931], Yang, G [0000-0001-8835-7722], Aaron Yung, LY [0000-0003-3466-035X], and Apollo - University of Cambridge Repository

Subjects
Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), FOS: Physical sciences, Astronomy and Astrophysics, 5109 Space Sciences, 51 Physical Sciences, Astrophysics - Astrophysics of Galaxies
Abstract

The new capabilities that JWST offers in the near- and mid-infrared (IR) are used to investigate in unprecedented detail the nature of optical/near-IR faint, mid-IR bright sources, HST-dark galaxies among them. We gather JWST data from the CEERS survey in the EGS, jointly with HST data, and analyze spatially resolved optical-to-mid-IR spectral energy distributions (SEDs) to estimate both photometric redshifts in 2 dimensions and stellar populations properties in a pixel-by-pixel basis. We select 138 galaxies with F150W-F356W>1.5 mag, F356W100 Gyr^-1); (2) 18% are quiescent/dormant (i.e., subject to reignition and rejuvenation) galaxies at 3, Comment: Published in CEERS ApJL Focus Issue, ApJL 946, L16

Published
2022
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7. CEERS Key Paper I: An Early Look into the First 500 Myr of Galaxy Formation with JWST

Author

Steven L. Finkelstein, Micaela B. Bagley, Henry C. Ferguson, Stephen M. Wilkins, Jeyhan S. Kartaltepe, Casey Papovich, L. Y. Aaron Yung, Pablo Arrabal Haro, Peter Behroozi, Mark Dickinson, Dale D. Kocevski, Anton M. Koekemoer, Rebecca L. Larson, Aurélien Le Bail, Alexa M. Morales, Pablo G. Pérez-González, Denis Burgarella, Romeel Davé, Michaela Hirschmann, Rachel S. Somerville, Stijn Wuyts, Volker Bromm, Caitlin M. Casey, Adriano Fontana, Seiji Fujimoto, Jonathan P. Gardner, Mauro Giavalisco, Andrea Grazian, Norman A. Grogin, Nimish P. Hathi, Taylor A. Hutchison, Saurabh W. Jha, Shardha Jogee, Lisa J. Kewley, Allison Kirkpatrick, Arianna S. Long, Jennifer M. Lotz, Laura Pentericci, Justin D. R. Pierel, Nor Pirzkal, Swara Ravindranath, Russell E. Ryan, Jonathan R. Trump, Guang Yang, Rachana Bhatawdekar, Laura Bisigello, Véronique Buat, Antonello Calabrò, Marco Castellano, Nikko J. Cleri, M. C. Cooper, Darren Croton, Emanuele Daddi, Avishai Dekel, David Elbaz, Maximilien Franco, Eric Gawiser, Benne W. Holwerda, Marc Huertas-Company, Anne E. Jaskot, Gene C. K. Leung, Ray A. Lucas, Bahram Mobasher, Viraj Pandya, Sandro Tacchella, Benjamin J. Weiner, Jorge A. Zavala, Finkelstein, SL [0000-0001-8519-1130], Bagley, MB [0000-0002-9921-9218], Ferguson, HC [0000-0001-7113-2738], Wilkins, SM [0000-0003-3903-6935], Kartaltepe, JS [0000-0001-9187-3605], Papovich, C [0000-0001-7503-8482], Yung, LY [0000-0003-3466-035X], Haro, PA [0000-0002-7959-8783], Behroozi, P [0000-0002-2517-6446], Dickinson, M [0000-0001-5414-5131], Kocevski, DD [0000-0002-8360-3880], Koekemoer, AM [0000-0002-6610-2048], Larson, RL [0000-0003-2366-8858], Le Bail, A [0000-0002-9466-2763], Morales, AM [0000-0003-4965-0402], Pérez-González, PG [0000-0003-4528-5639], Burgarella, D [0000-0002-4193-2539], Davé, R [0000-0003-2842-9434], Hirschmann, M [0000-0002-3301-3321], Somerville, RS [0000-0002-6748-6821], Wuyts, S [0000-0003-3735-1931], Bromm, V [0000-0003-0212-2979], Casey, CM [0000-0002-0930-6466], Fontana, A [0000-0003-3820-2823], Fujimoto, S [0000-0001-7201-5066], Gardner, JP [0000-0003-2098-9568], Giavalisco, M [0000-0002-7831-8751], Grazian, A [0000-0002-5688-0663], Grogin, NA [0000-0001-9440-8872], Hathi, NP [0000-0001-6145-5090], Hutchison, TA [0000-0001-6251-4988], Jha, SW [0000-0001-8738-6011], Jogee, S [0000-0002-1590-0568], Kewley, LJ [0000-0001-8152-3943], Kirkpatrick, A [0000-0002-1306-1545], Long, AS [0000-0002-7530-8857], Lotz, JM [0000-0003-3130-5643], Pentericci, L [0000-0001-8940-6768], Pierel, JDR [0000-0002-2361-7201], Pirzkal, N [0000-0003-3382-5941], Ravindranath, S [0000-0002-5269-6527], Ryan, RE [0000-0003-0894-1588], Trump, JR [0000-0002-1410-0470], Yang, G [0000-0001-8835-7722], Bhatawdekar, R [0000-0003-0883-2226], Bisigello, L [0000-0003-0492-4924], Buat, V [0000-0003-3441-903X], Calabrò, A [0000-0003-2536-1614], Castellano, M [0000-0001-9875-8263], Cleri, NJ [0000-0001-7151-009X], Cooper, MC [0000-0003-1371-6019], Croton, D [0000-0002-5009-512X], Daddi, E [0000-0002-3331-9590], Dekel, A [0000-0003-4174-0374], Elbaz, D [0000-0002-7631-647X], Franco, M [0000-0002-3560-8599], Gawiser, E [0000-0003-1530-8713], Holwerda, BW [0000-0002-4884-6756], Huertas-Company, M [0000-0002-1416-8483], Jaskot, AE [0000-0002-6790-5125], Leung, GCK [0000-0002-9393-6507], Lucas, RA [0000-0003-1581-7825], Mobasher, B [0000-0001-5846-4404], Pandya, V [0000-0002-2499-9205], Tacchella, S [0000-0002-8224-4505], Weiner, BJ [0000-0001-6065-7483], Zavala, JA [0000-0002-7051-1100], and Apollo - University of Cambridge Repository

Subjects
epoch simulations flares, cosmology legacy survey, deblended dust emission, uv luminosity functions, ultra-deep field, hubble frontier fields, FOS: Physical sciences, Astronomy and Astrophysics, initial mass function, 5109 Space Sciences, space-telescope observations, Astrophysics - Astrophysics of Galaxies, Space and Planetary Science, similar-to 10, Astrophysics of Galaxies (astro-ph.GA), 51 Physical Sciences, high-redshift galaxies
Abstract

We present an investigation into the first 500 Myr of galaxy evolution from the Cosmic Evolution Early Release Science (CEERS) survey. CEERS, one of 13 JWST ERS programs, targets galaxy formation from z~0.5 to z>10 using several imaging and spectroscopic modes. We make use of the first epoch of CEERS NIRCam imaging, spanning 35.5 sq. arcmin, to search for candidate galaxies at z>9. Following a detailed data reduction process implementing several custom steps to produce high-quality reduced images, we perform multi-band photometry across seven NIRCam broad and medium-band (and six Hubble broadband) filters focusing on robust colors and accurate total fluxes. We measure photometric redshifts and devise a robust set of selection criteria to identify a sample of 26 galaxy candidates at z~9-16. These objects are compact with a median half-light radius of ~0.5 kpc. We present an early estimate of the z~11 rest-frame ultraviolet (UV) luminosity function, finding that the number density of galaxies at M_UV ~ -20 appears to evolve very little from z~9 to z~11. We also find that the abundance (surface density [arcmin^-2]) of our candidates exceeds nearly all theoretical predictions. We explore potential implications, including that at z>10 star formation may be dominated by top-heavy initial mass functions, which would result in an increased ratio of UV light per unit halo mass, though a complete lack of dust attenuation and/or changing star-formation physics may also play a role. While spectroscopic confirmation of these sources is urgently required, our results suggest that the deeper views to come with JWST should yield prolific samples of ultra-high-redshift galaxies with which to further explore these conclusions., 41 pages, 20 figures, 6 tables, submitted to ApJL. Key results in Figures 13-15, discussed in Sections 7 and 8

Published
2022
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8. Galaxy Cluster Mass Reconstruction Project: II. Quantifying scatter and bias using contrasting mock catalogues

Author

Frazer R. Pearce, Trevor J. Ponman, Ramin A. Skibba, J. C. Muñoz-Cuartas, Michael R. Merrifield, Stuart I. Muldrew, Elmo Tempel, R. R. de Carvalho, Eduardo Rozo, Lyndsay Old, Meghan E. Gray, Daniel Gifford, R. Wojtak, Eli S. Rykoff, Steven P. Bamford, Alexandro Saro, R. J. Pearson, A. von der Linden, Gary A. Mamon, T. Sepp, Peter Behroozi, Darren J. Croton, Cristóbal Sifón, Volker Müller, Old, L., Wojtak, R., Mamon, G. A., Skibba, R. A., Pearce, F. R., Croton, D., Bamford, S., Behroozi, P., de Carvalho, R., Muñoz-Cuartas, J. C., Gifford, D., Gray, M. E., von der Linden, A., Merrifield, M. R., Muldrew, S. I., Müller, V., Pearson, R. J., Ponman, T. J., Rozo, E., Rykoff, E., Saro, A., Sepp, T., Sifón, C., and Tempel, E.

Subjects
statistical [Methods], Cosmology and Nongalactic Astrophysics (astro-ph.CO), FOS: Physical sciences, observation [Cosmology], Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, haloe [Galaxies], Set (abstract data type), Range (statistics), Cluster (physics), Galaxies: haloes, Galaxy cluster, Methods: statistical, Astrophysics::Galaxy Astrophysics, Physics, numerical [Methods], Series (mathematics), Methods: numerical, kinematics and dynamic [Galaxies], Cosmology: observations, Galaxies: kinematics and dynamics, Astronomy, Astronomy and Astrophysics, Function (mathematics), Astronomy and Astrophysic, Astrophysics - Astrophysics of Galaxies, Galaxy, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), Halo, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

This article is the second in a series in which we perform an extensive comparison of various galaxy-based cluster mass estimation techniques that utilise the positions, velocities and colours of galaxies. Our aim is to quantify the scatter, systematic bias and completeness of cluster masses derived from a diverse set of 25 galaxy-based methods using two contrasting mock galaxy catalogues based on a sophisticated halo occupation model and a semi-analytic model. Analysing 968 clusters, we find a wide range in the RMS errors in log M200c delivered by the different methods (0.18 to 1.08 dex, i.e., a factor of ~1.5 to 12), with abundance matching and richness methods providing the best results, irrespective of the input model assumptions. In addition, certain methods produce a significant number of catastrophic cases where the mass is under- or over-estimated by a factor greater than 10. Given the steeply falling high-mass end of the cluster mass function, we recommend that richness or abundance matching-based methods are used in conjunction with these methods as a sanity check for studies selecting high mass clusters. We see a stronger correlation of the recovered to input number of galaxies for both catalogues in comparison with the group/cluster mass, however, this does not guarantee that the correct member galaxies are being selected. We do not observe significantly higher scatter for either mock galaxy catalogues. Our results have implications for cosmological analyses that utilise the masses, richnesses, or abundances of clusters, which have different uncertainties when different methods are used., 25 pages, 19 figures, 7 tables. Accepted for publication in MNRAS

Published
2015

9. Galaxies In X-Ray Groups. I. Robust Membership Assignment And The Impact Of Group Environments On Quenching

Author

C. Faure, Giovanni Covone, Yen-Ting Lin, Matthew R. George, Jean-Paul Kneib, Alexie Leauthaud, Peter Capak, Kevin Bundy, Jeremy L. Tinker, Risa H. Wechsler, Emeric Le Floc'h, Anton M. Koekemoer, Olivier Ilbert, Stephanie L. Fiorenza, Simona Mei, Michael T. Busha, Masayuki Tanaka, Lodovico Coccato, Alexis Finoguenov, M. Wolk, Peter Behroozi, Herve Aussel, Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), George, M. R., Leauthaud, A., Bundy, K., Finoguenov, A., Tinker, J., Lin, Y. T., Mei, S., Kneib, J. P., Aussel, H., Behroozi, P. S., Busha, M. T., Capak, P., Coccato, L., Covone, Giovanni, Faure, C., Fiorenza, S. L., Ilbert, O., Le Floc'h, E., Koekemoer, A. M., Tanaka, M., Wechsler, R. H., Wolk, M., University of Zurich, and George, M R

Subjects
Digital Sky Survey, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Stellar mass, Similar-To 1, 530 Physics, South-Pole Telescope, Population, Cosmic microwave background, Dark-Matter Halos, Color-Magnitude Relation, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Star (graph theory), Wide-Field Survey, Star-Forming Galaxies, 01 natural sciences, 1912 Space and Planetary Science, galaxies: groups: general, 0103 physical sciences, Morphology-Density Relation, education, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, Physics, education.field_of_study, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Star formation, Astronomy and Astrophysics, Background Power Spectrum, Galaxy, Redshift, Atacama Cosmology Telescope, Space and Planetary Science, 10231 Institute for Computational Science, galaxies: star formation, 3103 Astronomy and Astrophysics, Halo, catalogs, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Understanding the mechanisms that lead dense environments to host galaxies with redder colors, more spheroidal morphologies, and lower star formation rates than field populations remains an important problem. As most candidate processes ultimately depend on host halo mass, accurate characterizations of the local environment, ideally tied to halo mass estimates and spanning a range in halo mass and redshift are needed. In this work, we present and test a rigorous, probabalistic method for assigning galaxies to groups based on precise photometric redshifts and X-ray selected groups drawn from the COSMOS field. The groups have masses in the range 10^13 < M_200c/M_sun < 10^14 and span redshifts 0, Comment: ApJ accepted. Catalogs will be posted at IRSA upon publication, currently available upon request

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10. ATLAS Probe: Breakthrough Science of Galaxy Evolution, Cosmology, Milky Way, and the Solar System

Author

Yun Wang, Massimo Robberto, Mark Dickinson, Lynne A. Hillenbrand, Wesley Fraser, Peter Behroozi, Jarle Brinchmann, Chia-Hsun Chuang, Andrea Cimatti, Robert Content, Emanuele Daddi, Henry C. Ferguson, Christopher Hirata, Michael J. Hudson, J. Davy Kirkpatrick, Alvaro Orsi, Russell Ryan, Alice Shapley, Mario Ballardini, Robert Barkhouser, James Bartlett, Robert Benjamin, Ranga Chary, Charlie Conroy, Megan Donahue, Olivier Doré, Peter Eisenhardt, Karl Glazebrook, George Helou, Sangeeta Malhotra, Lauro Moscardini, Jeffrey A. Newman, Zoran Ninkov, Michael Ressler, James Rhoads, Jason Rhodes, Daniel Scolnic, Stephen Smee, Francesco Valentino, Risa H. Wechsler, Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Wang Y., Robberto M., Dickinson M., Hillenbrand L.A., Fraser W., Behroozi P., Brinchmann J., Chuang C.-H., Cimatti A., Content R., Daddi E., Ferguson H.C., Hirata C., Hudson M.J., Kirkpatrick J.D., Orsi A., Ryan R., Shapley A., Ballardini M., Barkhouser R., Bartlett J., Benjamin R., Chary R., Conroy C., Donahue M., Dore O., Eisenhardt P., Glazebrook K., Helou G., Malhotra S., Moscardini L., Newman J.A., Ninkov Z., Ressler M., Rhoads J., Rhodes J., Scolnic D., Smee S., Valentino F., Wechsler R.H., Laboratoire AIM, and Université Paris Diderot - Paris 7 ( UPD7 ) -Centre d'Etudes de Saclay

Subjects
PE9_9, PE9_8, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Galaxies: evaluation, 01 natural sciences, law.invention, Instruments [Space vehicles], law, cosmology: Observations, Galaxies: Evaluation, space vehicles: Instruments, Galaxy group, Evaluation [Galaxies], space vehicles: instruments, [ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010303 astronomy & astrophysics, Weak gravitational lensing, Wide Field Infrared Survey Telescope, Earth and Planetary Astrophysics (astro-ph.EP), Physics, Astrophysics::Instrumentation and Methods for Astrophysics, cosmology: Observation, Astrophysics - Solar and Stellar Astrophysics, astro-ph.CO, Astrophysics::Earth and Planetary Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics and Astronomy, Cosmology and Nongalactic Astrophysics (astro-ph.CO), astro-ph.SR, astro-ph.GA, Milky Way, Dark matter, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Observations [Cosmology], NO, Telescope, 0103 physical sciences, Galaxy formation and evolution, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation and Methods for Astrophysics (astro-ph.IM), Solar and Stellar Astrophysics (astro-ph.SR), Astrophysics::Galaxy Astrophysics, 010308 nuclear & particles physics, PE9_14, Astronomy, Astronomy and Astrophysics, Astrophysics - Astrophysics of Galaxies, Galaxy, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), cosmology: observations, astro-ph.EP, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - Earth and Planetary Astrophysics, astro-ph.IM
Abstract

ATLAS (Astrophysics Telescope for Large Area Spectroscopy) Probe is a concept for a NASA probe-class space mission. It is the follow-up space mission to WFIRST, boosting its scientific return by obtaining deep IR slit spectroscopy for 70% of all galaxies imaged by a 2000 sq deg WFIRST High Latitude Survey at z>0.5. ATLAS will measure accurate and precise redshifts for 200M galaxies out to z < 7, and deliver spectra that enable a wide range of diagnostic studies of the physical properties of galaxies over most of cosmic history. ATLAS Probe science spans four broad categories: (1) Revolutionizing galaxy evolution studies by tracing the relation between galaxies and dark matter from galaxy groups to cosmic voids and filaments, from the epoch of reionization through the peak era of galaxy assembly; (2) Opening a new window into the dark Universe by weighing the dark matter filaments using 3D weak lensing with spectroscopic redshifts, and obtaining definitive measurements of dark energy and modification of General Relativity using galaxy clustering; (3) Probing the Milky Way's dust-enshrouded regions, reaching the far side of our Galaxy; and (4) Exploring the formation history of the outer Solar System by characterizing Kuiper Belt Objects. ATLAS Probe is a 1.5m telescope with a field of view of 0.4 sq deg, and uses Digital Micro-mirror Devices (DMDs) as slit selectors. It has a spectroscopic resolution of R = 1000 over 1-4 microns, and a spectroscopic multiplex factor >5,000. ATLAS is designed to fit within the NASA probe-class space mission cost envelope; it has a single instrument, a telescope aperture that allows for a lighter launch vehicle, and mature technology. ATLAS Probe will lead to transformative science over the entire range of astrophysics: from galaxy evolution to the dark Universe, from Solar System objects to the dusty regions of the Milky Way., 46 pages. Accepted by PASA

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