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Spectral variability of Cyg X-3The 1.7-40 keV spectra of Cyg X-3 obtained about a year apart, using the same rocket payload, show large spectral differences. The two observations suggest that while the luminosity of this source remains roughly the same, its spectrum can vary from a featureless blackbody distribution to a flat spectrum which includes strong iron line emission at approximately 6.7 keV. The flux in the line corresponds to an equivalent continuum width of 1.2 keV.
Document ID
19750016523
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Serlemitsos, P. J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Boldt, E. A. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Holt, S. S. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Rothschild, R. E. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Saba, J. L. R. (Md. Univ. College Park, United States)
Date Acquired
September 3, 2013
Publication Date
April 1, 1975
Subject Category
Astronomy
Report/Patent Number
X-661-75-98
NASA-TM-X-70891
Accession Number
75N24595
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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