Angular Sizes of Faint Field Disk Galaxies: Intrinsic Luminosity Evolution

Details Angular Sizes of Faint Field Disk Galaxies: Intrinsic Luminosity Evolution Angular Sizes of Faint Field Disk Galaxies: Intrinsic Luminosity Evolution

1996-06-07

arxiv.org/abs/astro-ph/9606049v1

Astronomy and Astrophysics

Astrophysics

plain tex file + 3 postscript figures. To be published in ApJL

Scientific paper

10.1086/310202

In order to explain the small scale-lengths detected in the recent deep field observations performed from large ground-based telescopes and from the Hubble Space Telescope, we investigate the predictions at high redshifts for disk galaxies that formed by infall. Changes with redshift in the observed properties of field galaxies are directly related to the evolution of the disks and of the stellar populations. We see that changes in the rest frame luminosity of a galaxy induce smaller values of half-light radii than are predicted assuming no evolution. Comparisons are presented with two observed samples from Mutz et al. (1994) and Smail et al. (1995).

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