Advanced search
1 file | 51.80 MB Add to list

A census of star formation histories of massive galaxies at 0.6 < z < 1 from spectrophotometric modeling using bagpipes and prospector

Author
Organization
Abstract
We present individual star formation histories (SFHs) of similar to 3000 massive galaxies (log(M-*/M-circle dot) > 10.5) from the Large Early Galaxy Astrophysics Census spectroscopic survey at a lookback time of similar to 7 billion yr and quantify the population trends leveraging 20 hr deep-integrated spectra of these similar to 1800 star-forming and similar to 1200 quiescent galaxies at 0.6 < z < 1.0. Essentially all galaxies at this epoch contain stars of age <3 Gyr, in contrast with older massive galaxies today, facilitating better recovery of previous generations of star formation at cosmic noon and earlier. We conduct spectrophotometric analysis using parametric and nonparametric Bayesian stellar population synthesis modeling tools-Bagpipes and Prospector-to constrain the median SFHs of this mass complete sample and characterize population trends. A consistent picture arises for the late-time stellar mass growth when quantified as t(50) and t(90), corresponding to the age of the Universe when galaxies formed 50% and 90% of their total stellar mass, although the two methods disagree at the earliest formation times (e.g., t(10)). Our results reveal trends in both stellar mass and stellar velocity dispersion as in the local Universe-low-mass galaxies with shallower potential wells grow their stellar masses later in cosmic history compared to high-mass galaxies. Unlike local quiescent galaxies, the median duration of late-time star formation (tau(SF,late) = t(90)-t(50)) does not consistently depend on the stellar mass. This census sets a benchmark for future deep spectrophotometric studies of the more distant Universe.
Keywords
STELLAR POPULATION PROPERTIES, DIGITAL SKY SURVEY, SPECTRAL ENERGY-DISTRIBUTIONS, POST-STARBURST GALAXIES, C SPECTROSCOPIC SURVEY, BROAD-BAND PHOTOMETRY, QUIESCENT GALAXIES, LEGA-C, VELOCITY DISPERSION, FORMING GALAXIES

Downloads

  • Kaushal 2024 ApJ 961 118.pdf
    • full text (Published version)
    • |
    • open access
    • |
    • PDF
    • |
    • 51.80 MB

Citation

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

MLA
Kaushal, Yasha, et al. “A Census of Star Formation Histories of Massive Galaxies at 0.6 < z < 1 from Spectrophotometric Modeling Using Bagpipes and Prospector.” ASTROPHYSICAL JOURNAL, vol. 961, no. 1, 2024, doi:10.3847/1538-4357/ad0c4e.
APA
Kaushal, Y., Nersesian, A., Bezanson, R., van der Wel, A., Leja, J., Carnall, A., … Martorano, M. (2024). A census of star formation histories of massive galaxies at 0.6 < z < 1 from spectrophotometric modeling using bagpipes and prospector. ASTROPHYSICAL JOURNAL, 961(1). https://doi.org/10.3847/1538-4357/ad0c4e
Chicago author-date
Kaushal, Yasha, Angelos Nersesian, Rachel Bezanson, Arjen van der Wel, Joel Leja, Adam Carnall, Anna Gallazzi, et al. 2024. “A Census of Star Formation Histories of Massive Galaxies at 0.6 < z < 1 from Spectrophotometric Modeling Using Bagpipes and Prospector.” ASTROPHYSICAL JOURNAL 961 (1). https://doi.org/10.3847/1538-4357/ad0c4e.
Chicago author-date (all authors)
Kaushal, Yasha, Angelos Nersesian, Rachel Bezanson, Arjen van der Wel, Joel Leja, Adam Carnall, Anna Gallazzi, Stefano Zibetti, Gourav Khullar, Marijn Franx, Adam Muzzin, Anna de Graaff, Camilla Pacifici, Katherine E. Whitaker, Eric F. Bell, and Marco Martorano. 2024. “A Census of Star Formation Histories of Massive Galaxies at 0.6 < z < 1 from Spectrophotometric Modeling Using Bagpipes and Prospector.” ASTROPHYSICAL JOURNAL 961 (1). doi:10.3847/1538-4357/ad0c4e.
Vancouver
1.
Kaushal Y, Nersesian A, Bezanson R, van der Wel A, Leja J, Carnall A, et al. A census of star formation histories of massive galaxies at 0.6 < z < 1 from spectrophotometric modeling using bagpipes and prospector. ASTROPHYSICAL JOURNAL. 2024;961(1).
IEEE
[1]
Y. Kaushal et al., “A census of star formation histories of massive galaxies at 0.6 < z < 1 from spectrophotometric modeling using bagpipes and prospector,” ASTROPHYSICAL JOURNAL, vol. 961, no. 1, 2024.
@article{01K21Q5BGESKAVHCXEQAMCSXST,
  abstract     = {{We present individual star formation histories (SFHs) of similar to 3000 massive galaxies (log(M-*/M-circle dot) > 10.5) from the Large Early Galaxy Astrophysics Census spectroscopic survey at a lookback time of similar to 7 billion yr and quantify the population trends leveraging 20 hr deep-integrated spectra of these similar to 1800 star-forming and similar to 1200 quiescent galaxies at 0.6 < z < 1.0. Essentially all galaxies at this epoch contain stars of age <3 Gyr, in contrast with older massive galaxies today, facilitating better recovery of previous generations of star formation at cosmic noon and earlier. We conduct spectrophotometric analysis using parametric and nonparametric Bayesian stellar population synthesis modeling tools-Bagpipes and Prospector-to constrain the median SFHs of this mass complete sample and characterize population trends. A consistent picture arises for the late-time stellar mass growth when quantified as t(50) and t(90), corresponding to the age of the Universe when galaxies formed 50% and 90% of their total stellar mass, although the two methods disagree at the earliest formation times (e.g., t(10)). Our results reveal trends in both stellar mass and stellar velocity dispersion as in the local Universe-low-mass galaxies with shallower potential wells grow their stellar masses later in cosmic history compared to high-mass galaxies. Unlike local quiescent galaxies, the median duration of late-time star formation (tau(SF,late) = t(90)-t(50)) does not consistently depend on the stellar mass. This census sets a benchmark for future deep spectrophotometric studies of the more distant Universe.}},
  articleno    = {{118}},
  author       = {{Kaushal, Yasha and Nersesian, Angelos and Bezanson, Rachel and van der Wel, Arjen and Leja, Joel and Carnall, Adam and Gallazzi, Anna and Zibetti, Stefano and Khullar, Gourav and Franx, Marijn and Muzzin, Adam and de Graaff, Anna and Pacifici, Camilla and Whitaker, Katherine E. and Bell, Eric F. and Martorano, Marco}},
  issn         = {{0004-637X}},
  journal      = {{ASTROPHYSICAL JOURNAL}},
  keywords     = {{STELLAR POPULATION PROPERTIES,DIGITAL SKY SURVEY,SPECTRAL ENERGY-DISTRIBUTIONS,POST-STARBURST GALAXIES,C SPECTROSCOPIC SURVEY,BROAD-BAND PHOTOMETRY,QUIESCENT GALAXIES,LEGA-C,VELOCITY DISPERSION,FORMING GALAXIES}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{22}},
  title        = {{A census of star formation histories of massive galaxies at 0.6 < z < 1 from spectrophotometric modeling using bagpipes and prospector}},
  url          = {{http://doi.org/10.3847/1538-4357/ad0c4e}},
  volume       = {{961}},
  year         = {{2024}},
}

Altmetric
View in Altmetric
Web of Science
Times cited: