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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
  4. 1.01 Articoli in rivista
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/29688
Title: Demographics of Star-forming Galaxies since z ̃ 2.5. I. The UVJ Diagram in CANDELS
Authors: Fang, Jerome J.
Faber, S. M.
Koo, David C.
Rodríguez-Puebla, Aldo
Guo, Yicheng
Barro, Guillermo
Behroozi, Peter
Brammer, Gabriel
Chen, Zhu
Dekel, Avishai
Ferguson, Henry C.
Gawiser, Eric
Giavalisco, Mauro
Kartaltepe, Jeyhan
Kocevski, Dale D.
Koekemoer, Anton M.
McGrath, Elizabeth J.
McIntosh, Daniel
Newman, Jeffrey A.
Pacifici, Camilla
Pandya, Viraj
Pérez-González, Pablo G.
Primack, Joel R.
Salmon, Brett
Trump, Jonathan R.
Weiner, Benjamin
Willner, S. P.
Acquaviva, Viviana
Dahlen, Tomas
Finkelstein, Steven L.
Finlator, Kristian
FONTANA, Adriano 
Galametz, Audrey
Grogin, Norman A.
Gruetzbauch, Ruth
Johnson, Seth
Mobasher, Bahram
Papovich, Casey J.
Pforr, Janine
Salvato, Mara
SANTINI, Paola 
VAN DER WEL, ARJEN
Wiklind, Tommy
Wuyts, Stijn
Issue Date: 2018
Journal: THE ASTROPHYSICAL JOURNAL 
Number: 858
Issue: 2
First Page: 100
Abstract: This is the first in a series of papers examining the demographics of star-forming (SF) galaxies at 0.2 < z < 2.5 in CANDELS. We study 9100 galaxies from GOODS-S and UDS, having published values of redshifts, masses, star formation rates (SFRs), and dust attenuation (A <SUB> V </SUB>) derived from UV-optical spectral energy distribution fitting. In agreement with previous works, we find that the UVJ colors of a galaxy are closely correlated with its specific star formation rate (SSFR) and A <SUB> V </SUB>. We define rotated UVJ coordinate axes, termed S <SUB>SED</SUB> and C <SUB>SED</SUB>, that are parallel and perpendicular to the SF sequence and derive a quantitative calibration that predicts SSFR from C <SUB>SED</SUB> with an accuracy of ̃0.2 dex. SFRs from UV-optical fitting and from UV+IR values based on Spitzer/MIPS 24 μm agree well overall, but systematic differences of order 0.2 dex exist at high and low redshifts. A novel plotting scheme conveys the evolution of multiple galaxy properties simultaneously, and dust growth, as well as star formation decline and quenching, exhibit “mass-accelerated evolution” (“downsizing”). A population of transition galaxies below the SF main sequence is identified. These objects are located between SF and quiescent galaxies in UVJ space, and have lower A <SUB> V </SUB> and smaller radii than galaxies on the main sequence. Their properties are consistent with their being in transit between the two regions. The relative numbers of quenched, transition, and SF galaxies are given as a function of mass and redshift.
URI: http://hdl.handle.net/20.500.12386/29688
URL: https://iopscience.iop.org/article/10.3847/1538-4357/aabcba
ISSN: 0004-637X
DOI: 10.3847/1538-4357/aabcba
Bibcode ADS: 2018ApJ...858..100F
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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