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Resolving the iron K line in Cygnus X-2 - An observation with BBXRTThe Astro-1 Space Shuttle payload's Broad Band X-ray telescope has been used to obtain high-quality, moderate-resolution spectroscopy of Cygnus X-2 which allow the resolving of the physical width of the 6.7 keV Fe K-alpha feature with a factor-of-4 energy resolution improvement over past experiments. Three possible sites are noted for the Fe K-alpha emission: the accretion disk, its corona, and the source itself. It is judged that reflection from the accretion disk can generate a line of the observed energy, width, and equivalent width, provided that the disk surface is highly ionized.
Document ID
19930057114
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Smale, A. P.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Done, C.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Mushotzky, R. F.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Weaver, K. A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Serlemitsos, P. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Marshall, F. E.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Petre, R.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Jahoda, K. M.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Boldt, E. A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Swank, J. H.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 16, 2013
Publication Date
June 20, 1993
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 410
Issue: 2
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
93A41111
Distribution Limits
Public
Copyright
Other

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