Einstein SSS+MPC observations of Seyfert type galaxies

Details Einstein SSS+MPC observations of Seyfert type galaxies Einstein SSS+MPC observations of Seyfert type galaxies

Nov 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989esasp.296.1105h&link_type=abstract

In ESA, The 23rd ESLAB Symposium on Two Topics in X Ray Astronomy. Volume 2: AGN and the X Ray Background p 1105-1110 (SEE N90-2

Astronomy and Astrophysics

Astronomy

5

Black Body Radiation, Data Processing, Heao 2, Proportional Counters, Seyfert Galaxies, Spectrometers, X Ray Spectra, Data Acquisition, Iron, Line Spectra, Spectral Line Width, X Ray Absorption

Scientific paper

The X-ray spectra of 27 Seyfert galaxies measured with the Solid State Spectrometer (SSS) onboard the Einstein Observatory is investigated. This new investigation features the utilization of simultaneous data from the Monitor Proportional Counter (MPC) and automatic correction for systematic effects in the SSS. The new results are that the best-fit single power law indices agree with those previously reported, but that soft excesses are inferred for at least 20 percent of the measured spectra. The soft excesses are consistent with either an approximately 0.25 keV black body or Fe-L line emission.

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