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The O ii Luminosity Density of the Universe

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Hogg, David W., Cohen, Judith G., Blandford, Roger, Pahre, Michael A.·1998·The Astrophysical Journal

Abstract

Equivalent widths of [O II] 3727 Å lines are measured in 375 faint galaxy spectra taken as part of the Caltech Faint Galaxy Redshift Survey centered on the Hubble Deep Field. The sensitivity of the survey spectra to the [O II] line is computed as a function of magnitude, color, and redshift. The luminosity function of galaxies in the [O II] line, and the integrated luminosity density of the universe in the [O II] line, are computed as a function of redshift. It is found that the luminosity density in the [O II] line was a factor of ~10 higher at redshifts z ~ 1 than it is at the present day. The simplest interpretation is that the star formation rate density of the universe has declined dramatically since z ~ 1.

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Metadata

Authors
Hogg, D. W., Cohen, J. G., Blandford, R., & Pahre, M. A.
Venue
The Astrophysical Journal
Published
1998-09-10
Volume
504
Issue
2
Pages
622-628
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
OpenAlex
W3124605204
Cited by
176
References
0
FWCI
9.34
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: The O ii Luminosity Density of the Universe. https://app.cochat.ai/papers/10.1086/306122
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Hogg, D. W., Cohen, J. G., Blandford, R., & Pahre, M. A. (1998). The O ii Luminosity Density of the Universe. The Astrophysical Journal. https://doi.org/10.1086/306122

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