Advanced search
Add to list

The SFR-M* relation and empirical star formation histories from zFourGE at 0.5 < z < 4

Author
Organization
Abstract
We explore star formation histories (SFHs) of galaxies based on the evolution of the star formation rate stellar mass relation (SFR-M-*). Using data from the FourStar Galaxy Evolution Survey (ZFOURGE) in combination with far-IR imaging from the Spitzer and Herschel observatories we measure the SFR-M-* relation at 0.5 < z < 4. Similar to recent works we find that the average infrared spectral energy distributions of galaxies are roughly consistent with a single infrared template across a broad range of redshifts and stellar masses, with evidence for only weak deviations. We find that the SFR-M-* relation is not consistent with a single power law of the form SFR proportional to M-*(alpha) at any redshift; it has a power law slope of alpha similar to 1 at low masses, and becomes shallower above a turnover mass (M-0) that ranges from 10(9.5) to 10(10.8) M-circle dot, with evidence that M-0 increases with redshift. We compare our measurements to results from state-of-the-art cosmological simulations, and find general agreement in the slope of the SFR-M-* relation albeit with systematic offsets. We use the evolving SFR-M-* sequence to generate SFHs, finding that typical SFRs of individual galaxies rise at early times and decline after reaching a peak. This peak occurs earlier for more massive galaxies. We integrate these SFHs to generate mass growth histories and compare to the implied mass growth from the evolution of the stellar mass function (SMF). We find that these two estimates are in broad qualitative agreement, but that there is room for improvement at a more detailed level. At early times the SFHs suggest mass growth rates that are as much as 10x higher than inferred from the SMF. However, at later times the SFHs under-predict the inferred evolution, as is expected in the case of additional growth due to mergers.
Keywords
DEEP-FIELD-SOUTH, STELLAR MASS FUNCTION, SPECTRAL ENERGY-DISTRIBUTIONS, HIGH-Z GALAXIES, SIMILAR-TO 2, FORMING GALAXIES, FORMATION RATES, MAIN-SEQUENCE, QUIESCENT GALAXIES, POPULATION SYNTHESIS, galaxies: evolution, galaxies: luminosity function - mass function, galaxies: star formation

Citation

Please use this url to cite or link to this publication:

MLA
Tomczak, Adam R, Ryan F Quadri, Kim-Vy H Tran, et al. “The SFR-M* Relation and Empirical Star Formation Histories from zFourGE at 0.5 < z < 4.” ASTROPHYSICAL JOURNAL 817.2 (2016): n. pag. Print.
APA
Tomczak, A. R., Quadri, R. F., Tran, K.-V. H., Labbe, I., Straatman, C., Papovich, C., Glazebrook, K., et al. (2016). The SFR-M* relation and empirical star formation histories from zFourGE at 0.5 < z < 4. ASTROPHYSICAL JOURNAL, 817(2).
Chicago author-date
Tomczak, Adam R, Ryan F Quadri, Kim-Vy H Tran, Ivo Labbe, Caroline Straatman, Casey Papovich, Karl Glazebrook, et al. 2016. “The SFR-M* Relation and Empirical Star Formation Histories from zFourGE at 0.5 < z < 4.” Astrophysical Journal 817 (2).
Chicago author-date (all authors)
Tomczak, Adam R, Ryan F Quadri, Kim-Vy H Tran, Ivo Labbe, Caroline Straatman, Casey Papovich, Karl Glazebrook, Rebecca Allen, Gabreil B Brammer, Michael Cowley, Mark Dickinson, David Elbaz, Hanae Inami, Glenn G Kacprzak, Glenn E Morrison, Themiya Nanayakkara, S Eric Persson, Glen A Rees, Brett Salmon, Corentin Schreiber, Lee R Spitler, and Katherine E Whitaker. 2016. “The SFR-M* Relation and Empirical Star Formation Histories from zFourGE at 0.5 < z < 4.” Astrophysical Journal 817 (2).
Vancouver
1.
Tomczak AR, Quadri RF, Tran K-VH, Labbe I, Straatman C, Papovich C, et al. The SFR-M* relation and empirical star formation histories from zFourGE at 0.5 < z < 4. ASTROPHYSICAL JOURNAL. 2016;817(2).
IEEE
[1]
A. R. Tomczak et al., “The SFR-M* relation and empirical star formation histories from zFourGE at 0.5 < z < 4,” ASTROPHYSICAL JOURNAL, vol. 817, no. 2, 2016.
@article{8582615,
  abstract     = {We explore star formation histories (SFHs) of galaxies based on the evolution of the star formation rate stellar mass relation (SFR-M-*). Using data from the FourStar Galaxy Evolution Survey (ZFOURGE) in combination with far-IR imaging from the Spitzer and Herschel observatories we measure the SFR-M-* relation at 0.5 < z < 4. Similar to recent works we find that the average infrared spectral energy distributions of galaxies are roughly consistent with a single infrared template across a broad range of redshifts and stellar masses, with evidence for only weak deviations. We find that the SFR-M-* relation is not consistent with a single power law of the form SFR proportional to M-*(alpha) at any redshift; it has a power law slope of alpha similar to 1 at low masses, and becomes shallower above a turnover mass (M-0) that ranges from 10(9.5) to 10(10.8) M-circle dot, with evidence that M-0 increases with redshift. We compare our measurements to results from state-of-the-art cosmological simulations, and find general agreement in the slope of the SFR-M-* relation albeit with systematic offsets. We use the evolving SFR-M-* sequence to generate SFHs, finding that typical SFRs of individual galaxies rise at early times and decline after reaching a peak. This peak occurs earlier for more massive galaxies. We integrate these SFHs to generate mass growth histories and compare to the implied mass growth from the evolution of the stellar mass function (SMF). We find that these two estimates are in broad qualitative agreement, but that there is room for improvement at a more detailed level. At early times the SFHs suggest mass growth rates that are as much as 10x higher than inferred from the SMF. However, at later times the SFHs under-predict the inferred evolution, as is expected in the case of additional growth due to mergers.},
  articleno    = {118},
  author       = {Tomczak, Adam R and Quadri, Ryan F and Tran, Kim-Vy H and Labbe, Ivo and Straatman, Caroline and Papovich, Casey and Glazebrook, Karl and Allen, Rebecca and Brammer, Gabreil B and Cowley, Michael and Dickinson, Mark and Elbaz, David and Inami, Hanae and Kacprzak, Glenn G and Morrison, Glenn E and Nanayakkara, Themiya and Persson, S Eric and Rees, Glen A and Salmon, Brett and Schreiber, Corentin and Spitler, Lee R and Whitaker, Katherine E},
  issn         = {0004-637X},
  journal      = {ASTROPHYSICAL JOURNAL},
  keywords     = {DEEP-FIELD-SOUTH,STELLAR MASS FUNCTION,SPECTRAL ENERGY-DISTRIBUTIONS,HIGH-Z GALAXIES,SIMILAR-TO 2,FORMING GALAXIES,FORMATION RATES,MAIN-SEQUENCE,QUIESCENT GALAXIES,POPULATION SYNTHESIS,galaxies: evolution,galaxies: luminosity function - mass function,galaxies: star formation},
  language     = {eng},
  number       = {2},
  pages        = {16},
  title        = {The SFR-M* relation and empirical star formation histories from zFourGE at 0.5 < z < 4},
  url          = {http://dx.doi.org/10.3847/0004-637X/817/2/118},
  volume       = {817},
  year         = {2016},
}

Altmetric
View in Altmetric
Web of Science
Times cited: