Search

Your search keyword '"M. E. Dickinson"' showing total 2 results
Start Over Author "M. E. Dickinson" Topic astrophysics of galaxies (astro-ph.ga)
2 results on '"M. E. Dickinson"'

1. The Hawk-I UDS and GOODS Survey (HUGS): Survey design and deep K-band number counts

Author

Stefano Zibetti, Nimish P. Hathi, C. J. Conselice, Alvio Renzini, Eros Vanzella, Andrea Grazian, D. Paris, E. Merlin, Ranga-Ram Chary, Omar Almaini, Anton M. Koekemoer, K. Boutsia, Stijn Wuyts, Claudia Scarlata, A. Cooray, Ross J. McLure, David J. Rosario, Marco Castellano, James Dunlop, Ray A. Lucas, H.-W. Rix, David C. Koo, M. Giavalisco, Emanuele Daddi, Adriano Fontana, Daniel P. Stark, T. A. Targett, Henry C. Ferguson, M. E. Dickinson, Michele Cirasuolo, Karina Caputi, A. van der Wel, Mario Nonino, V. Sommariva, P. Santini, Vivienne Wild, S. M. Faber, Laura Pentericci, Norman A. Grogin, Giovanni G. Fazio, Haojing Yan, E. Giallongo, A. Galametz, INAF - Osservatorio Astronomico di Roma (OAR), Istituto Nazionale di Astrofisica (INAF), Département d'Astrophysique (ex SAP) (DAP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire d'Astrophysique de Marseille (LAM), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), European Project: 312725,EC:FP7:SPA,FP7-SPACE-2012-1,ASTRODEEP(2013), European Project: 306299,EC:FP7:ERC,ERC-2012-StG_20111012,SEDMORPH(2012), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Astronomy, European Research Council, and University of St Andrews. School of Physics and Astronomy

Subjects
SAMPLE, TELESCOPE, SOUTH FIELD, FOS: Physical sciences, Astrophysics, Surveys, MUSIC, surveys, K band, Range (statistics), STAR-FORMING GALAXIES, QB Astronomy, MULTICOLOR CATALOG, EXTRAGALACTIC LEGACY SURVEY, PHOTOMETRIC REDSHIFTS, QC, QB, Physics, CANDELS, Astronomy and Astrophysics, Survey research, evolution [Galaxies], FAINT, Astrophysics - Astrophysics of Galaxies, Galaxy, Data set, QC Physics, Physics and Astronomy, Space and Planetary Science, LUMINOSITY FUNCTION, Data quality, Astrophysics of Galaxies (astro-ph.GA), Magnitude (astronomy), MUSIC SAMPLE, galaxies: evolution, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Data reduction
Abstract

We present the results of a new, ultra-deep, near-infrared imaging survey executed with the Hawk-I imager at the ESO VLT, of which we make all the data public. This survey, named HUGS (Hawk-I UDS and GOODS Survey), provides deep, high-quality imaging in the K and Y bands over the CANDELS UDS and GOODS-South fields. We describe here the survey strategy, the data reduction process, and the data quality. HUGS delivers the deepest and highest quality K-band images ever collected over areas of cosmological interest, and ideally complements the CANDELS data set in terms of image quality and depth. The seeing is exceptional and homogeneous, confined to the range 0.38"-0.43". In the deepest region of the GOODS-S field, (which includes most of the HUDF) the K-band exposure time exceeds 80 hours of integration, yielding a 1-sigma magnitude limit of ~28.0 mag/sqarcsec. In the UDS field the survey matches the shallower depth of the CANDELS images reaching a 1-sigma limit per sq.arcsec of ~27.3mag in the K band and ~28.3mag in the Y-band, We show that the HUGS observations are well matched to the depth of the CANDELS WFC3/IR data, since the majority of even the faintest galaxies detected in the CANDELS H-band images are also detected in HUGS. We present the K-band galaxy number counts produced by combining the HUGS data from the two fields. We show that the slope of the number counts depends sensitively on the assumed distribution of galaxy sizes, with potential impact on the estimated extra-galactic background light (abridged)., Accepted for publication on Astronomy and Astrophysics

Published
2014

2. Stellar masses from the CANDELS survey: the GOODS-South and UDS fields

Author

Paola Santini, Dale D. Kocevski, Anton M. Koekemoer, Stijn Wuyts, Tomas Dahlen, Andrea Grazian, M. E. Dickinson, Bahram Mobasher, Benjamin J. Weiner, Michael C. Cooper, Ricardo Amorín, Guillermo Barro, Peter Kurczynski, Adriano Fontana, K. Boutsia, Nimish P. Hathi, Sang-Gak Lee, E. Merlin, Steve Finkelstein, Tommy Wiklind, Yicheng Guo, Li-Ting Hsu, Alice Mortlock, Marco Castellano, Audrey Galametz, C. J. Conselice, D. Paris, Jeffrey A. Newman, Henry C. Ferguson, Bomee Lee, Janine Pforr, Raymond C. Simons, L. Pentericci, Mauro Giavalisco, Mara Salvato, Steven P. Willner, Norman A. Grogin, Omar Almaini, INAF - Osservatorio Astronomico di Roma (OAR), Istituto Nazionale di Astrofisica (INAF), Space Telescope Science Institute (STSci), Institute of cosmology and gravitation, University of Portsmouth, Max-Planck-Institut für Extraterrestrische Physik (MPE), Excellence Cluster Universe, excellence cluster centre, Onsala Space Observatory, Chalmers University of Technology [Göteborg], Steward observatory, University of Arizona, Department of Astronomy, Stockholm University, Department of Astronomy [Amherst], University of Massachusetts [Amherst] (UMass Amherst), University of Massachusetts System (UMASS)-University of Massachusetts System (UMASS), INGENIERIE (INGENIERIE), Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Harvard-Smithsonian Center for Astrophysics (CfA), and Smithsonian Institution-Harvard University [Cambridge]

Subjects
Physics, COSMIC cancer database, Stellar mass, Star formation, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, stellar content [galaxies], Astrophysics - Astrophysics of Galaxies, Galaxy, Spectral line, Redshift, Photometry (optics), surveys, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), fundamental parameters [galaxies], Astrophysics::Solar and Stellar Astrophysics, Stellar isochrone, Astrophysics::Earth and Planetary Astrophysics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], catalogs, high-redshift [galaxies], Astrophysics::Galaxy Astrophysics
Abstract

We present the public release of the stellar mass catalogs for the GOODS-S and UDS fields obtained using some of the deepest near-IR images available, achieved as part of the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey (CANDELS) project. We combine the effort from ten different teams, who computed the stellar masses using the same photometry and the same redshifts. Each team adopted their preferred fitting code, assumptions, priors, and parameter grid. The combination of results using the same underlying stellar isochrones reduces the systematics associated with the fitting code and other choices. Thanks to the availability of different estimates, we can test the effect of some specific parameters and assumptions on the stellar mass estimate. The choice of the stellar isochrone library turns out to have the largest effect on the galaxy stellar mass estimates, resulting in the largest distributions around the median value (with a semi interquartile range larger than 0.1 dex). On the other hand, for most galaxies, the stellar mass estimates are relatively insensitive to the different parameterizations of the star formation history. The inclusion of nebular emission in the model spectra does not have a significant impact for the majority of galaxies (less than a factor of 2 for ~80% of the sample). Nevertheless, the stellar mass for the subsample of young galaxies (age < 100 Myr), especially in particular redshift ranges (e.g., 2.2 < z < 2.4, 3.2 < z < 3.6, and 5.5 < z < 6.5), can be seriously overestimated (by up to a factor of 10 for < 20 Myr sources) if nebular contribution is ignored., Accepted for publication by ApJ. Replaced to match the final version (two tables and one figure added in the appendix)

Published
2014
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results