A Blind Test of Photometric Redshift Prediction

A Blind Test of Photometric Redshift Prediction
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光度红移预测的盲测

DOI：
10.1086/300277
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发表时间：
1998
期刊：
The Astronomical Journal
影响因子：
--
通讯作者：
A. Yahil
A. Yahil
中科院分区：
--
文献类型：
--
作者：
D. Hogg;J. Cohen;R. Blandford;S. Gwyn;F. Hartwick;B. Mobasher;P. Mazzei;M. Sawicki;H. Lin;H. Yee;A. Connolly;R. Brunner;I. Csabai;I. Csabai;M. Dickinson;M. Dickinson;M. Subbarao;A. Szalay;A. Fernández;A. Fernández;K. Lanzetta;A. Yahil

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本文给出了用凯克望远镜对哈勃深场光谱星系红移进行的光度学红移预测的盲法试验结果。最好的光度学红移方案预测的光谱红移精度为Δz&lt；0.1，适用于超过68%的光源，而Δz&lt；0.3适用于100%，当不考虑单特征光谱红移时。这项测试表明，光度学红移方案工作得很好，至少在光度学数据高质量和光源处于中等红移时是这样。
Results of a blind test of photometric redshift predictions against spectroscopic galaxy redshifts obtained in the Hubble Deep Field with the Keck Telescope are presented. The best photometric redshift schemes predict spectroscopic redshifts with a redshift accuracy of Δz < 0.1 for more than 68% of sources and with Δz < 0.3 for 100%, when single-feature spectroscopic redshifts are removed from consideration. This test shows that photometric redshift schemes work well, at least when the photometric data are of high quality and when the sources are at moderate redshifts.