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Einstein SSS+MPC observations of Seyfert type galaxiesThe 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.
Document ID
19900016597
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Holt, S. S. (NASA Goddard Space Flight Center Greenbelt, MD., United States)
Turner, T. J. (NASA Goddard Space Flight Center Greenbelt, MD., United States)
Mushotzky, R. F. (NASA Goddard Space Flight Center Greenbelt, MD., United States)
Weaver, K. (Maryland Univ. College Park., United States)
Date Acquired
September 6, 2013
Publication Date
November 1, 1989
Publication Information
Publication: ESA, The 23rd ESLAB Symposium on Two Topics in X Ray Astronomy. Volume 2: AGN and the X Ray Background
Subject Category
Astronomy
Accession Number
90N25913
Distribution Limits
Public
Copyright
Other
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