The Redshift Distribution and Luminosity Functions of Galaxies in the Hubble Deep Field

Astronomy and Astrophysics – Astrophysics

Scientific paper

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10 pages, including 2 PostScript figures. Uses AASTex. Accepted for publication in Astrophysical Journal Letters

Scientific paper

10.1086/310237

Photometric redshifts have been determined for the galaxies in the Hubble Deep Field. The resulting redshift distribution shows two peaks: one at z~0.6 and one at z~2.2. Luminosity functions derived from the redshifts show strong luminosity evolution as a function of redshift. This evolution is consistent with the Babul & Rees (1992) scenario wherein massive galaxies form stars at high redshift while star formation in dwarf galaxies is delayed until after z=1.

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