2000/11/14 by Christian Wolf, Klaus Meisenheimer, Wolf, Christian +3
Engineering · Physics and Astronomy · #Adaptive optics and wavefront sensing #Astronomical Observations and Instrumentation #Astronomy and Astrophysical Research #Astrophysics (astro-ph) #FOS: Physical sciences #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0011267
6 pages, 2 figures, Proceedings of the conference held in Preston, UK, 21-24 August 2000
arxiv created 2000/11/14 · openalex publication_date 2000/11/14 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We simulate multi-color surveys, which use the same telescope time on different filter sets of broad-band and medium-band filters. We use a photometric classification method for identifying stars, galaxies and quasars and for estimating multi-color redshifts of extragalactic objects. A library of >65000 color templates is used for comparison with observed objects. Spectroscopy from the CADIS survey has proven the performance of the method. We learned, that medium-band surveys perform superior to broad-band surveys in terms of classification and redshift estimation although they collect less photons. A full account of this work is already in print.