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Date and Time of the Query: 2018-11-14 T01:11:11 PST
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For refcode 1989ApJ...341..679H:
Retrieve 53 NED objects in this reference.
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Copyright by American Astronomical Society. Reproduced by permission
1989ApJ...341..679H INFRARED EMISSION FROM COMPACT GROUPS OF GALAXIES PAUL HICKSON AND T. K. MENON Department of Geophysics and Astronomy, University of British Columbia G. G. C. PALUMBO Dipartimento di Astronomia, Universita di Bologna and I.TE.S.R.E./CNR AND M. PERSIC Osservatorio Astronomico di Trieste Received 1988 August 30; accepted 1988 December 1 ABSTRACT A search of the IRAS Point Source Catalog, Version 2 has revealed infrared sources within 1' of the optical centers of 54 galaxies in Hickson's catalog of compact groups of galaxies. The 60 micron luminosity function for these galaxies has the same shape as the luminosity function of the IRAS bright galaxy sample. The space density of IRAS galaxies in compact groups is 60 times smaller than the space density of IRAS bright galaxies, indicating that of order 1% of all bright IRAS galaxies are in compact groups. The infrared emission from these galaxies is compared with the emission from samples of isolated galaxies by Keel et al. and cluster galaxies studied by Bicay and Giovanelli. The fractional distribution of the ratio of far-infrared to optical luminosity of compact group galaxies is significantly larger than that of the isolated galaxies and comparable to that of the cluster galaxies. These results indicate that infrared emission is enhanced in the compact group galaxies, probably because of interactions. We also report an upper limit to the 2-10 keV X-ray flux of compact groups in our sample of 3 x 10^41^h^-2^ ergs^-1^, from the HEAO I A-2 experiment. Subject headings: galaxies: clustering - galaxies: interactions - galaxies: X-rays - infrared: sources
Retrieve 53 NED objects in this reference.
Please click here for ADS abstract

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