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A search for iron features in the EXOSAT spectral survey sourcesThe results of the search for iron features performed on 40 of the 48 EXOSAT spectral survey sources are discussed. In thrirteen of the sources the spectral fit was improved by the inclusion of an iron emission line at approximately 6.5 keV. In three of these, an ionized absorption edge improved the spectral fit. In one source, the spectral fit was improved by the addition of a cold iron absorption edge at approximately 7.1 keV. Line equivalent widths are not well determined. A statistical analysis of the line fits suggest an inverse correlation between line equivalent width and intrinsic source luminosity. Comparison of the host galaxy axial ratio with the line equivalent width suggests that larger equivalent widths occur in sources with more nearly face on host galaxies.
Document ID
19900016571
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Leighly, K. M.
(Montana State Univ. Bozeman., United States)
Pounds, K. A.
(Leicester Univ. Greenbelt, MD, United States)
Turner, T. J.
(NASA Goddard Space Flight Center)
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
90N25887
Distribution Limits
Public
Copyright
Other
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