The ultraluminous and hyperluminous infrared galaxies in the Sloan Digital Sky Survey, 2dF Galaxy Redshift Survey and 6dF Galaxy Survey
The ultraluminous and hyperluminous infrared galaxies in the Sloan Digital Sky Survey, 2dF Galaxy Redshift Survey and 6dF Galaxy Survey
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DOI：
10.1111/j.1365-2966.2006.11279.x
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发表时间：
2007-02
影响因子：
4.8
通讯作者：
H. Hwang;S. Serjeant;M. Lee;K. Lee;G. White
中科院分区：
文献类型：
--
作者：
H. Hwang;S. Serjeant;M. Lee;K. Lee;G. White
本文给出了红外天文卫星微弱源目录（IRAS FSC）与斯隆数字巡天（SDSS）第四次数据发布、2dF星系红移巡天（2dFGRS）最终数据发布和6dF星系巡天（6dFGS）第二次数据发布的星系光谱目录相互关联的结果。我们已经发现了324个超发光红外星系（ulrgs），其中包括新发现的190个，以及2个超发光红外星系（hligs）。加上这些新的ULIRGs，我们将已知的ULIRGs数量增加了约30%。使用似然比方法估计了相互关系的可靠性。本研究中识别程序引入的样本的不完整性估计约为5%。我们的样本覆盖了z=0.037 0.517的红移范围，中位数红移为¯z=0.223，这比以前已知的ulrgs样本（¯z=0.184）要大。
We present a result of cross-correlating the Infrared Astronomical Satellite Faint Source Catalogue (IRAS FSC) with the spectroscopic catalogues of galaxies in the Fourth Data Release of Sloan Digital Sky Survey (SDSS), the Final Data Release of 2dF Galaxy Redshift Survey (2dFGRS) and the Second Data Release of 6dF Galaxy Survey (6dFGS). We have identified 324 ultraluminous infrared galaxies (ULIRGs) including 190 newly discovered ULIRGs, and 2 hyperluminous infrared galaxies (HLIRGs). Adding these new ULIRGs, we increase the number of known ULIRGs by about 30 per cent. The reliability of the cross-correlation is estimated using the likelihood ratio method. The incompleteness of our sample introduced by the identification procedure in this study is estimated to be about 5 per cent. Our sample covers the redshift range of z=0.037 0.517 with a median redshift of ¯ z=0.223, which is larger than that (¯ z=0.184) of the sample of previously known ULIRGs.