The ultraluminous and hyperluminous infrared galaxies in the Sloan Digital Sky Survey, 2dF Galaxy Redshift Survey and 6dF Galaxy Survey |
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| Authors: | Ho Seong Hwang Stephen Serjeant Myung Gyoon Lee Kang Hwan Lee Glenn J White |
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| Institution: | Astronomy Program, Department of Physics and Astronomy, FPRD, Seoul National University, Seoul 151-742, Korea;Visiting Research Associate, Centre for Astrophysics &Planetary Science, School of Physical Sciences, University of Kent, Canterbury, Kent CT2 7NR;Centre for Astrophysics &Planetary Science, School of Physical Sciences, University of Kent, Canterbury, Kent CT2 7NR;Astrophysics Group, Department of Physics and Astronomy, The Open University, Milton Keynes MK7 6AA;National Science Museum Planning Office, Ministry of Science &Technology, Gwacheon Kyungi 427-715, Korea;CCLRC Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX |
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| Abstract: | We present a result of cross-correlating the Infrared Astronomical Satellite Faint Source Catalogue with the spectroscopic catalogues of galaxies in the Fourth Data Release of the Sloan Digital Sky Survey, the Final Data Release of the 2dF Galaxy Redshift Survey (2dFGRS) and the Second Data Release of the 6dF Galaxy Survey. We have identified 324 ultraluminous infrared galaxies (ULIRGs) including 190 newly discovered ULIRGs, and two hyperluminous infrared galaxies. 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  , which is larger than that  of the sample of previously known ULIRGs. |
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| Keywords: | galaxies: active galaxies: general infrared: galaxies |
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