Comparison of VLBI radio-core and X-ray flux densities of extragalactic radio sources

Details Comparison of VLBI radio-core and X-ray flux densities of extragalactic radio sources Comparison of VLBI radio-core and X-ray flux densities of extragalactic radio sources

Jan 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...366...16b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 366, Jan. 1, 1991, p. 16-21.

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32

Extragalactic Radio Sources, Very Long Base Interferometry, X Ray Sources, Brightness Temperature, Luminosity, Red Shift

Scientific paper

The relation between compact radio core and X-ray emission in extragalactic radio sources, suggested by Worral et al. (1987) and Kembhavi et al. (1986), is investigated by comparing the X-ray flux densities observed in 56 extragalactic radio sources with the Einstein Observatory with the compact radio-core flux densities derived from published VLBI maps for these radio sources. It was found that the radio to X-ray spectral index distribution had a small dispersion, whereas the log-log plot of the flux densities showed no correlation. This implies that the basic level of X-ray emission is determined by the radio-core emission, but that the exact value depends on other parameters.

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