Radio emission of Shakhbazian Compact Galaxy Groups

Details Radio emission of Shakhbazian Compact Galaxy Groups Radio emission of Shakhbazian Compact Galaxy Groups

1999-05-01

arxiv.org/abs/astro-ph/9905001v1

Astronomy and Astrophysics

Astrophysics

35 pages, 6 Postscript figures, ApJS in press

Scientific paper

10.1086/307726

Three hundred fifty three radio sources from the NRAO VLA Sky Survey (NVSS) (Condon et al. 1998) and the FIRST Survey (White et al. 1997}, are detected in the areas of 179 Shakhbazian Compact Groups (ShCGs) of galaxies. Ninety three of them are identified with galaxies in 74 ShCGs. Six radio sources have complex structure. The radio spectra of 22 sources are determined. Radio luminosities of galaxies in ShCGs are in general higher than that of galaxies in Hickson Compact Groups (HCGs). The comparison of radio (at 1.4 GHz) and FIR (at 60 $\mu$m) fluxes of ShCG galaxies with that of HCG galaxies shows that galaxies in ShCGs are relatively stronger emitters at radio wavelengths, while galaxies in HCGs have relatively stronger FIR emission. The reasons of such difference is discussed.

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