publication . Other literature type . Research . Article . Preprint . 2018

An Older, More Quiescent Universe from Panchromatic SED Fitting of the 3D-HST Survey

Joel Leja; Benjamin D. Johnson; Charlie Conroy; Pieter van Dokkum; Joshua S. Speagle; Gabriel Brammer; Ivelina Momcheva; Rosalind Skelton; Katherine E. Whitaker; Marijn Franx; ...
  • Published: 01 Dec 2018
  • Publisher: American Astronomical Society
Abstract
Galaxy observations are influenced by many physical parameters: stellar masses, star formation rates (SFRs), star formation histories (SFHs), metallicities, dust, black hole activity, and more. As a result, inferring accurate physical parameters requires high-dimensional models which capture or marginalize over this complexity. Here we re-assess inferences of galaxy stellar masses and SFRs using the 14-parameter physical model Prospector-$\alpha$ built in the Prospector Bayesian inference framework. We fit the photometry of 58,461 galaxies from the 3D-HST catalogs at $0.5 < z < 2.5$. The resulting stellar masses are $\sim0.1-0.3$ dex larger than the fiducial mas...
Subjects
arXiv: Astrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Galaxy AstrophysicsAstrophysics::Solar and Stellar AstrophysicsAstrophysics::Earth and Planetary Astrophysics
free text keywords: Space and Planetary Science, Astronomy and Astrophysics, Stellar mass, Universe, media_common.quotation_subject, media_common, Stars, Photometry (optics), Astrophysics, Physics, Redshift, Astronomy, Galaxy, Star formation, Black hole, Astrophysics - Astrophysics of Galaxies
Related Organizations
Funded by
NSF| Bringing Galaxy Evolution into Focus by Pushing SED Models to the Limit
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 1701487
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Astronomical Sciences
163 references, page 1 of 11

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Astropy Collaboration, Robitaille, T. P., Tollerud, E. J., et al. 2013, A&A, 558, A33

Astropy Collaboration, Price-Whelan, A. M., Sipo}cz, B. M., et al. 2018, AJ, 156, 123

Behroozi, P., Wechsler, R., Hearin, A., & Conroy, C. 2018, ArXiv e-prints, arXiv:1806.07893

Behroozi, P. S., Conroy, C., & Wechsler, R. H. 2010, ApJ, 717, 379

Bell, E. F., & de Jong, R. S. 2001, ApJ, 550, 212

Bell, E. F., Papovich, C., Wolf, C., et al. 2005, ApJ, 625, 23

Berta, S., Lutz, D., Santini, P., et al. 2013, A&A, 551, A100

Bezanson, R., Franx, M., & van Dokkum, P. G. 2015a, ApJ, 799, 148

Bezanson, R., Wake, D. A., Brammer, G. B., et al. 2015b, ArXiv e-prints, arXiv:1510.07049

Bouche, N., Dekel, A., Genzel, R., et al. 2010, ApJ, 718, 1001

Brammer, G. B., van Dokkum, P. G., & Coppi, P. 2008, ApJ, 686, 1503

Brinchmann, J., & Ellis, R. S. 2000, ApJL, 536, L77

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163 references, page 1 of 11
Abstract
Galaxy observations are influenced by many physical parameters: stellar masses, star formation rates (SFRs), star formation histories (SFHs), metallicities, dust, black hole activity, and more. As a result, inferring accurate physical parameters requires high-dimensional models which capture or marginalize over this complexity. Here we re-assess inferences of galaxy stellar masses and SFRs using the 14-parameter physical model Prospector-$\alpha$ built in the Prospector Bayesian inference framework. We fit the photometry of 58,461 galaxies from the 3D-HST catalogs at $0.5 < z < 2.5$. The resulting stellar masses are $\sim0.1-0.3$ dex larger than the fiducial mas...
Subjects
arXiv: Astrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Galaxy AstrophysicsAstrophysics::Solar and Stellar AstrophysicsAstrophysics::Earth and Planetary Astrophysics
free text keywords: Space and Planetary Science, Astronomy and Astrophysics, Stellar mass, Universe, media_common.quotation_subject, media_common, Stars, Photometry (optics), Astrophysics, Physics, Redshift, Astronomy, Galaxy, Star formation, Black hole, Astrophysics - Astrophysics of Galaxies
Related Organizations
Funded by
NSF| Bringing Galaxy Evolution into Focus by Pushing SED Models to the Limit
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 1701487
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Astronomical Sciences
163 references, page 1 of 11

Acquaviva, V., Gawiser, E., & Guaita, L. 2011, ApJ, 737, 47

Acquaviva, V., Raichoor, A., & Gawiser, E. 2015, ApJ, 804, 8

Astropy Collaboration, Robitaille, T. P., Tollerud, E. J., et al. 2013, A&A, 558, A33

Astropy Collaboration, Price-Whelan, A. M., Sipo}cz, B. M., et al. 2018, AJ, 156, 123

Behroozi, P., Wechsler, R., Hearin, A., & Conroy, C. 2018, ArXiv e-prints, arXiv:1806.07893

Behroozi, P. S., Conroy, C., & Wechsler, R. H. 2010, ApJ, 717, 379

Bell, E. F., & de Jong, R. S. 2001, ApJ, 550, 212

Bell, E. F., Papovich, C., Wolf, C., et al. 2005, ApJ, 625, 23

Berta, S., Lutz, D., Santini, P., et al. 2013, A&A, 551, A100

Bezanson, R., Franx, M., & van Dokkum, P. G. 2015a, ApJ, 799, 148

Bezanson, R., Wake, D. A., Brammer, G. B., et al. 2015b, ArXiv e-prints, arXiv:1510.07049

Bouche, N., Dekel, A., Genzel, R., et al. 2010, ApJ, 718, 1001

Brammer, G. B., van Dokkum, P. G., & Coppi, P. 2008, ApJ, 686, 1503

Brinchmann, J., & Ellis, R. S. 2000, ApJL, 536, L77

Bruzual, G., & Charlot, S. 2003, MNRAS, 344, 1000

163 references, page 1 of 11
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publication . Other literature type . Research . Article . Preprint . 2018

An Older, More Quiescent Universe from Panchromatic SED Fitting of the 3D-HST Survey

Joel Leja; Benjamin D. Johnson; Charlie Conroy; Pieter van Dokkum; Joshua S. Speagle; Gabriel Brammer; Ivelina Momcheva; Rosalind Skelton; Katherine E. Whitaker; Marijn Franx; ...