EZ: A Tool For Automatic Redshift Measurement

被引：101
作者：
Garilli, B. [1 ]
Fumana, M. [1 ]
Franzetti, P. [1 ]
Paioro, L. [1 ]
Scodeggio, M. [1 ]
Le Fevre, O. [2 ]
Paltani, S. [3 ]
Scaramella, R. [4 ]
机构：
[1] INAF, IASF Milano, I-20133 Milan, Italy
[2] Univ Provence, Lab Astrophys Marseille, UMR 6110, CNRS, F-13388 Marseille 13, France
[3] Univ Geneva, ISDC, Observ Geneva, CH-1290 Versoix, Switzerland
[4] Osserv Astron Roma, INAF, I-0040 Monte Porzio Catone, RM, Italy
来源：
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | 2010年 / 122卷 / 893期
关键词：
VLT DEEP SURVEY; COSMOS; GALAXIES; RELEASE; SPECTRA;
D O I：
10.1086/654903
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present EZ (Easy redshift), a tool we have developed within the VVDS project to help in redshift measurement from optical spectra. EZ has been designed with large spectroscopic surveys in mind, and in its development particular care has been given to the reliability of the results obtained in an automatic and unsupervised mode. Nevertheless, the possibility of running it interactively has been preserved, and a graphical user interface for results inspection has been designed. EZ has been successfully used within the VVDS project, as well as the zCosmos one. In this article we describe its architecture and the algorithms used, and evaluate its performances both on simulated and real data. EZ is an open-source program, freely downloadable from the Pandora Web Site.(1)
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收藏
页码：827 / 838
页数：12
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