An Optimal Multihump Filter for Photometric Redshifts
Open Access
- 1 June 2001
- journal article
- research article
- Published by American Astronomical Society in The Astronomical Journal
- Vol. 121 (6) , 3266-3269
- https://doi.org/10.1086/321068
Abstract
We propose a novel type of filter for multicolor imaging to improve on the photometric redshift estimation of galaxies. An extra filter—specific to a certain photometric system—may be utilized with high efficiency. We present a case study of the Hubble Space Telescope's Advanced Camera for Surveys and show that one extra exposure could cut down the mean square error on photometric redshifts by 34% over the z < 1.3 redshift range.Keywords
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