Calibration update of the COMBO-17 CDFS catalogue

Details Calibration update of the COMBO-17 CDFS catalogue Calibration update of the COMBO-17 CDFS catalogue

2008-09-11

arxiv.org/abs/0809.2066v2

Astronomy and Astrophysics

Astrophysics

A&A research note, resubmitted 02 Oct 2008, 4 pages in print format

Scientific paper

10.1051/0004-6361:200810954

We present an update to the photometric calibration of the COMBO-17 catalogue on the Extended Chandra Deep Field South, which is now consistent with the GaBoDS and MUSYC catalogues. As a result, photometric redshifts become slightly more accurate, with <0.01 rms and little bias in the delta_z/(1+z) of galaxies with R<21 and of QSOs with R<24. With increasing photon noise the rms of galaxies reaches 0.02 for R<23 and 0.035 at R~23.5. Consequences for the rest-frame colours of galaxies at z<1 are discussed.

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