PHAT: PHoto-<i>z</i>Accuracy Testing

2010250 citationsJournal Articlebronze Open Access

Authors

H. Hildebrandt · Leiden University

S. Arnouts · Canada–France–Hawaii Telescope

P. Capak · California Institute of Technology

L. A. Moustakas · Jet Propulsion Laboratory

C. Wolf · University of Oxford

F. B. Abdalla · University College London

R. J. Assef · The Ohio State University

M. Banerji ·

Abstract

Context. Photometric redshifts (photo-z's) have become an essential tool in extragalactic astronomy. Many current and upcoming observing programmes require great accuracy of photo-z's to reach their scientific goals. Aims. Here we introduce PHAT, the PHoto-z Accuracy Testing programme, an international initiative to test and compare different methods of photo-z estimation. Methods. Two different test environments are set up, one (PHAT0) based on simulations to test the basic functionality of the different photo-z codes, and another one (PHAT1) based on data from the GOODS survey including 18-band photometry and 2000 spectroscopic redshifts.

Topics & Keywords

Galaxies: Formation, Evolution, Phenomena Astronomy and Astrophysical Research Stellar, planetary, and galactic studies

Publication Details

Published in: Astronomy and Astrophysics

Volume 523, pp. A31-A31

DOI: 10.1051/0004-6361/201014885

Field-Weighted Citation Impact: 10.62

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PHAT: PHoto-<i>z</i>Accuracy Testing

Authors

Abstract

Topics & Keywords

Publication Details