The X-ray spectra and variability of active galaxies

Details The X-ray spectra and variability of active galaxies The X-ray spectra and variability of active galaxies

May 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978cosp.meett....s&link_type=abstract

COSPAR, Plenary Meeting, 21st, Innsbruck, Austria, May 29-June 10, 1978, Paper. 11 p.

Astronomy and Astrophysics

Astronomy

Active Galaxies, Ariel 5 Satellite, Astronomical Spectroscopy, Seyfert Galaxies, Variability, X Ray Sources, X Ray Spectra, Extraterrestrial Radiation, Heavy Elements

Scientific paper

A total of approximately 20 Seyfert galaxies have been now identified as X-ray sources. Experiment C on Ariel V has observed a total of six of these (NGC 4151, 3C 390.3, NGC 5548, Mkn 279, Mkn 506, and Mkn 509). In the present paper, the spectral data obtained from Experiment C for these galaxies are discussed and summarized. The data are compared with observations of NGC 5128 (a radio galaxy), obtained during three periods, spanning four years.

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