X-ray spectra of Seyfert galaxies

Details X-ray spectra of Seyfert galaxies X-ray spectra of Seyfert galaxies

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992mnras.259..175g&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 259, no. 1, p. 175-190.

Astronomy and Astrophysics

Astronomy

9

Astronomical Spectroscopy, Markarian Galaxies, Seyfert Galaxies, X Ray Spectra, Absorption Spectra, Emission Spectra, Exosat Satellite, Ginga Satellite, Spaceborne Astronomy, Spectral Line Width

Scientific paper

A spectra analysis of eight Seyfert galaxies shows that while seven have soft excesses in their spectra, with no low-energy absorption, ESO 140-G43 exhibits low energy absorption, and may have weak soft excess that is hidden by its 10 exp 21/sq cm absorber. It is suggested that soft excesses are a common feature of Seyfert galaxies, and soft excess detection depends on low-energy absorption in the line-of-sight to the source. This and other results obtained suggest that the fluorescence from warm material can produce a high fluorescence yield for the Fe line.

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