The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
ON THE EVOLUTION OF THE MOLECULAR GAS FRACTION OF STAR-FORMING GALAXIES
Open accessAbstract
We present IRAM Plateau de Bure interferometric detections of CO ( J = 1 → 0) emission from a 24 μm-selected sample of star-forming galaxies at z = 0.4. The galaxies have polycyclic aromatic hydrocarbon 7.7 μm-derived star formation rates of SFR ∼30–60 M ☉ yr −1 and stellar masses M ⋆ ∼ 10 11 M ☉ . The CO ( J = 1 → 0) luminosities of the galaxies imply that the disks still contain a large reservoir of molecular gas, contributing ∼20% of the baryonic mass, but have star formation "efficiencies" similar to local quiescent disks and gas-dominated disks at z ∼ 1.5–2. We reveal evidence that the average molecular gas fraction has undergone strong evolution since z ∼ 2, with f gas ∝ (1 + z ) ∼2±0.5 . The evolution of f gas encodes fundamental information about the relative depletion/replenishment of molecular fuel in galaxies and is expected to be a strong function of halo mass. We show that the latest predictions for the evolution of the molecular gas fraction in semi-analytic models of galaxy formation within a ΛCDM universe are supported by these new observations.
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Citations
Cites
THE STAR FORMATION EFFICIENCY IN NEARBY GALAXIES: MEASURING WHERE GAS FORMS STARS EFFECTIVELY
Leroy, A. K., Walter, F., Brinks, E., Bigiel, F., de Blok, W. J. G., Madore, B., & Thornley, M. D. (2008) · The Astronomical Journal · doi:10.1088/0004-6256/136/6/2782 · Cited by 1,919
Cited by
Physical Models of Galaxy Formation in a Cosmological Framework
Somerville, R. S., & Davé, R. (2015) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev-astro-082812-140951 · Cited by 1,442
Cool Gas in High-Redshift Galaxies
Carilli, C. L., & Walter, F. (2013) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev-astro-082812-140953 · Cited by 1,107
Dusty star-forming galaxies at high redshift
Casey, C. M., Narayanan, D., & Cooray, A. (2014) · Physics Reports · doi:10.1016/j.physrep.2014.02.009 · Cited by 800
Davé, R., Finlator, K., & Oppenheimer, B. D. (2011) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2011.20148.x · Cited by 512
CANDELS: THE PROGENITORS OF COMPACT QUIESCENT GALAXIES AT z∼ 2
Barro, G., Faber, S. M., Pérez-González, P. G., Koo, D. C., Williams, C. C., Kocevski, D. D., Trump, J. R., Mozena, M., McGrath, E., van der Wel, A., et al. (2013) · The Astrophysical Journal · doi:10.1088/0004-637x/765/2/104 · Cited by 462
Metadata
- Authors
- Geach, J. E., Smail, I., Moran, S. M., MacArthur, L. A., Lagos, C. D. P., & Edge, A. C.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2011-03-04
- Volume
- 730
- Issue
- 2
- Pages
- L19
- ISSN
- 2041-8205 (ISSN-L)
- 2041-8213
- OpenAlex
- W2102080842
- Cited by
- 223
- References
- 1
- FWCI
- 11.06
- Type
- journal article
- Language
- en
- Open access
- bronze
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- The paper
- Geach, J. E., Smail, I., Moran, S. M., MacArthur, L. A., Lagos, C. D. P., & Edge, A. C. (2011). ON THE EVOLUTION OF THE MOLECULAR GAS FRACTION OF STAR-FORMING GALAXIES. The Astrophysical Journal. https://doi.org/10.1088/2041-8205/730/2/l19
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