N galaxies - A new class of X-ray sources

Details N galaxies - A new class of X-ray sources N galaxies - A new class of X-ray sources

Oct 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978natur.275..624m&link_type=abstract

Nature, vol. 275, Oct. 19, 1978, p. 624, 625.

Astronomy and Astrophysics

Astronomy

34

Astronomical Spectroscopy, Galactic Radiation, X Ray Sources, Confidence Limits, Heao, Radio Galaxies, Spectral Line Width, X Ray Spectra

Scientific paper

It is shown that in addition to many Seyfert galaxies and quasars, N galaxies are also powerful X-ray sources. X-ray emission has been discovered from all six N galaxies in the 3C radio catalogue with redshifts less than 0.06 and from the N galaxy Pic A. Since many of the N galaxies possess compact radio components, it is suggested that the principle cause of X-ray emission may be the synchrotron self-Compton process. An alternate theory suggests that X-rays may be generated by gas clouds colliding with velocities of the order of the Doppler width of the broad lines.

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