Photometric Redshifts of Galaxies in the Hubble Deep Field

Details Photometric Redshifts of Galaxies in the Hubble Deep Field Photometric Redshifts of Galaxies in the Hubble Deep Field

1997-09-17

arxiv.org/abs/astro-ph/9709166v1

Astronomy and Astrophysics

Astrophysics

21 pages, LaTex, 9 figures, to be published in The Hubble Deep Field, proceedings of the Space Telescope Science Institute 199

Scientific paper

We describe our application of broad-band photometric redshift techniques to faint galaxies in the Hubble Deep Field. To magnitudes AB(8140) < 26, the accuracy of the photometric redshifts is a few tenths and the reliability of the photometric redshifts approaches 100%. At fainter magnitudes the effects of photometric error on the photometric redshifts can be rigorously quantified and accounted for. We argue that broad-band photometric redshift techniques can be applied to accurately and reliably estimate redshifts of galaxies that are up to many magnitudes fainter than the spectroscopic limit.

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