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Demographics of star-forming galaxies since z ∼ 2.5, I : the UVJ diagram in CANDELS

Author
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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 (Av) 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(v). We define rotated UVJ coordinate axes, termed S-SED and C-SED, that are parallel and perpendicular to the SF sequence and derive a quantitative calibration that predicts SSFR from C-SED with an accuracy of-0.2 dex. SFRs from UV-optical fitting and from UV-FIR values based on Spitzer IMIPS 24 itm 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 Av 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.
Keywords
galaxies: evolution, galaxies: fundamental parameters, galaxies: high redshift, galaxies: star formation, galaxies: structure, QUIESCENT GALAXIES, INFRARED-EMISSION, MASSIVE GALAXIES, FORMATION RATES, STELLAR MASSES, EVOLUTION, DUST, SEQUENCE, REDSHIFT, GAS

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Citation

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MLA
Fang, Jerome J., et al. “Demographics of Star-Forming Galaxies since z ∼ 2.5, I : The UVJ Diagram in CANDELS.” ASTROPHYSICAL JOURNAL, vol. 858, no. 2, 2018, doi:10.3847/1538-4357/aabcba.
APA
Fang, J. J., Faber, S., Koo, D. C., Rodríguez-Puebla, A., Guo, Y., Barro, G., … Wuyts, S. (2018). Demographics of star-forming galaxies since z ∼ 2.5, I : the UVJ diagram in CANDELS. ASTROPHYSICAL JOURNAL, 858(2). https://doi.org/10.3847/1538-4357/aabcba
Chicago author-date
Fang, Jerome J, SM Faber, David C Koo, Aldo Rodríguez-Puebla, Yicheng Guo, Guillermo Barro, Peter Behroozi, et al. 2018. “Demographics of Star-Forming Galaxies since z ∼ 2.5, I : The UVJ Diagram in CANDELS.” ASTROPHYSICAL JOURNAL 858 (2). https://doi.org/10.3847/1538-4357/aabcba.
Chicago author-date (all authors)
Fang, Jerome J, SM Faber, David C Koo, Aldo Rodríguez-Puebla, Yicheng Guo, Guillermo Barro, Peter Behroozi, Gabriel Brammer, Zhu Chen, Avishai Dekel, Henry C Ferguson, Eric Gawiser, Mauro Giavalisco, Jeyhan Kartaltepe, Dale D Kocevski, Anton M Koekemoer, Elizabeth J McGrath, Daniel McIntosh, Jeffrey A Newman, Camilla Pacifici, Viraj Pandya, Pablo G Pérez-González, Joel R Primack, Brett Salmon, Jonathan R Trump, Benjamin Weiner, SP Willner, Viviana Acquaviva, Tomas Dahlen, Steven L Finkelstein, Kristian Finlator, Adriano Fontana, Audrey Galametz, Norman A Grogin, Ruth Gruetzbauch, Seth Johnson, Bahram Mobasher, Casey J Papovich, Janine Pforr, Mara Salvato, P Santini, Arjen van der Wel, Tommy Wiklind, and Stijn Wuyts. 2018. “Demographics of Star-Forming Galaxies since z ∼ 2.5, I : The UVJ Diagram in CANDELS.” ASTROPHYSICAL JOURNAL 858 (2). doi:10.3847/1538-4357/aabcba.
Vancouver
1.
Fang JJ, Faber S, Koo DC, Rodríguez-Puebla A, Guo Y, Barro G, et al. Demographics of star-forming galaxies since z ∼ 2.5, I : the UVJ diagram in CANDELS. ASTROPHYSICAL JOURNAL. 2018;858(2).
IEEE
[1]
J. J. Fang et al., “Demographics of star-forming galaxies since z ∼ 2.5, I : the UVJ diagram in CANDELS,” ASTROPHYSICAL JOURNAL, vol. 858, no. 2, 2018.
@article{8562682,
  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 (Av) 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(v). We define rotated UVJ coordinate axes, termed S-SED and C-SED, that are parallel and perpendicular to the SF sequence and derive a quantitative calibration that predicts SSFR from C-SED with an accuracy of-0.2 dex. SFRs from UV-optical fitting and from UV-FIR values based on Spitzer IMIPS 24 itm 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 Av 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.}},
  articleno    = {{100}},
  author       = {{Fang, Jerome J and Faber, SM and Koo, David C and Rodríguez-Puebla, Aldo and Guo, Yicheng and Barro, Guillermo and Behroozi, Peter and Brammer, Gabriel and Chen, Zhu and Dekel, Avishai and Ferguson, Henry C and Gawiser, Eric and Giavalisco, Mauro and Kartaltepe, Jeyhan and Kocevski, Dale D and Koekemoer, Anton M and McGrath, Elizabeth J and McIntosh, Daniel and Newman, Jeffrey A and Pacifici, Camilla and Pandya, Viraj and Pérez-González, Pablo G and Primack, Joel R and Salmon, Brett and Trump, Jonathan R and Weiner, Benjamin and Willner, SP and Acquaviva, Viviana and Dahlen, Tomas and Finkelstein, Steven L and Finlator, Kristian and Fontana, Adriano and Galametz, Audrey and Grogin, Norman A and Gruetzbauch, Ruth and Johnson, Seth and Mobasher, Bahram and Papovich, Casey J and Pforr, Janine and Salvato, Mara and Santini, P and van der Wel, Arjen and Wiklind, Tommy and Wuyts, Stijn}},
  issn         = {{0004-637X}},
  journal      = {{ASTROPHYSICAL JOURNAL}},
  keywords     = {{galaxies: evolution,galaxies: fundamental parameters,galaxies: high redshift,galaxies: star formation,galaxies: structure,QUIESCENT GALAXIES,INFRARED-EMISSION,MASSIVE GALAXIES,FORMATION RATES,STELLAR MASSES,EVOLUTION,DUST,SEQUENCE,REDSHIFT,GAS}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{29}},
  title        = {{Demographics of star-forming galaxies since z ∼ 2.5, I : the UVJ diagram in CANDELS}},
  url          = {{http://doi.org/10.3847/1538-4357/aabcba}},
  volume       = {{858}},
  year         = {{2018}},
}

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