The DOI matches its Crossref record; 43 of the 43 references it cites were found in a registry or an index.
On the Evolution of Star‐forming Galaxies
Open accessAbstract
The evolution in the comoving space density of the global average galaxy star formation rate (SFR) out to a redshift around unity is well established. Beyond z ≈ 1 there is growing evidence that this evolution is flat or even increasing, contrary to early indications of a turnover. Some recent analyses of z ≈ 6 photometric dropouts are suggestive of a decline from z = 3 to z ≈ 6, but there is still very little constraint on the extent of dust obscuration at such high redshifts. In less than a decade, numerous measurements of galaxy SFR density spanning z = 0 to as high as z ≈ 6 have rapidly broadened our understanding of galaxy evolution, and a summary of existing SFR density measurements is presented here. This global star formation history compilation is found to be consistent to within factors of about 3 over essentially the entire range 0 < z ≲ 6, and it can be used to constrain the evolution of the luminosity function (LF) for star-forming galaxies. The LF evolution for star-forming galaxies has been previously explored using optical source counts, as well as radio source counts at 1.4 GHz, and a well-known degeneracy between luminosity evolution [ L ∝ (1 + z ) Q ] and density evolution [ϕ ∝ (1 + z ) P ] is found. Combining the constraints from the global SFR density evolution with those from the 1.4 GHz radio source counts at submillijansky levels allows this degeneracy to be broken and a best-fitting evolutionary form to be established. The preferred evolution in a H 0 = 70, Ω M = 0.3, Ω Λ = 0.7 cosmology from these combined constraints is Q = 2.70 ± 0.60, P = 0.15 ± 0.60.
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Cites
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Cited by
On the Normalization of the Cosmic Star Formation History
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Self-citationCold streams in early massive hot haloes as the main mode of galaxy formation
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Metadata
- Authors
- Hopkins, A. M.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2004-11
- Volume
- 615
- Issue
- 1
- Pages
- 209-221
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2131053676
- Cited by
- 553
- References
- 43
- FWCI
- 25.40
- Type
- journal article
- Language
- en
- Open access
- bronze
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