26.3 MHz radio source survey. III - Correlation with extragalactic X-ray sources

Details 26.3 MHz radio source survey. III - Correlation with extragalactic X-ray sources 26.3 MHz radio source survey. III - Correlation with extragalactic X-ray sources

Jun 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...222..761e&link_type=abstract

Astrophysical Journal, Part 1, vol. 222, June 15, 1978, p. 761-778.

Astronomy and Astrophysics

Astronomy

36

Galactic Clusters, High Frequencies, Radio Sources (Astronomy), X Ray Sources, Data Correlation, Decametric Waves, Error Analysis, Extragalactic Radio Sources, Luminous Intensity, Radiant Flux Density

Scientific paper

The correlation between extragalactic X-ray sources and radio sources in a 26.3-MHz catalog is studied. A list of reliably identified sources is developed by examining X-ray, optical, and radio data for those candidate objects that are in or near the X-ray error boxes. The source 3UR 0432+05 is identified with 3C 120, 3UR 1555+27 (identified with A2142) is shown to be a steep-spectrum radio source, and it is found that 86% of the high-galactic-latitude sources can be reliably identified when the X-ray source error areas are no more than 1 sq deg. The results also indicate that: (1) X-ray sources identified with clusters of galaxies as a whole, with individual galaxies in clusters, and with separate isolated galaxies have similar decametric properties in that their spectral indices and radio luminosities fall in the same range; (2) there is a Bautz-Morgan dependence of both the X-ray and the decametric luminosities of clusters and of individual objects in clusters; and (3) the X-ray luminosity of all except compact sources appears to be approximately proportional to the decametric luminosity.

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