Cited by 22Galaxies: Formation, Evolution, PhenomenaAstrophysics and Star Formation StudiesStellar, planetary, and galactic studies

THE HISTORY OF STAR FORMATION IN GALAXY DISKS IN THE LOCAL VOLUME AS MEASURED BY THE ADVANCED CAMERA FOR SURVEYS NEARBY GALAXY SURVEY TREASURY

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Williams, Benjamin F., Dalcanton, Julianne J., Johnson, L. C., Weisz, Daniel R., Seth, Anil C., Dolphin, Andrew, Gilbert, Karoline M., Skillman, Evan +4 more·2011·The Astrophysical Journal

Abstract

We present a measurement of the age distribution of stars residing in spiral disks and dwarf galaxies. We derive a complete star formation history of the ∼140 Mpc 3 covered by the volume-limited sample of galaxies in the Advanced Camera for Surveys (ACS) Nearby Galaxy Survey Treasury (ANGST). The total star formation rate density history (ρ SFR ( t )) is dominated by the large spirals in the volume, although the sample consists mainly of dwarf galaxies. Our ρ SFR ( t ) shows a factor of ∼3 drop at z ∼ 2, in approximate agreement with results from other measurement techniques. While our results show that the overall ρ SFR ( t ) has decreased since z ∼ 1, the measured rates during this epoch are higher than those obtained from other measurement techniques. This enhanced recent star formation rate appears to be largely due to an increase in the fraction of star formation contained in low-mass disks at recent times. Finally, our results indicate that despite the differences at recent times, the epoch of formation of ∼50% of the stellar mass in dwarf galaxies was similar to that of ∼50% of the stellar mass in large spiral galaxies ( z ≳ 2), despite the observed galaxy-to-galaxy diversity among the dwarfs.

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Research works printed but not linked: 2

  1. [45]45. Weisz, D. R., et al. 2011a, arXiv:1101.1093 · arXiv
  2. [46]46. Weisz, D. R., et al. 2011b, arXiv:1101.1301 · arXiv

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Authors
Williams, B. F., Dalcanton, J. J., Johnson, L. C., Weisz, D. R., Seth, A. C., Dolphin, A., Gilbert, K. M., Skillman, E., Rosema, K., Gogarten, S. M., Holtzman, J., & de Jong, R. S.
Affiliations
  • University of Washington (US)
  • Harvard University (US)
  • RTX (United States) (US)
  • University of Minnesota (US)
  • New Mexico State University (US)
Venue
The Astrophysical Journal
Published
2011-05-20
Volume
734
Issue
1
Pages
L22
ISSN
  • 2041-8205 (ISSN-L)
  • 2041-8213
OpenAlex
W2055954854
Cited by
22
References
54
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 1 · 2022: 2 · 2018: 2 · 2017: 3 · 2016: 1 · 2013: 3 · 2012: 4
FWCI
1.53
Type
journal article
Language
en
Open access
Locations
  • The Astrophysical Journal Letters (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Galaxies: Formation, Evolution, Phenomena
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astrophysics and Star Formation Studies
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
Keywords
star formation history, galaxy disks, spiral galaxies, dwarf galaxies, star formation rate density, stellar age distribution, volume-limited galaxy sample, galaxy formation epoch, local universe

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