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The discovery of pulsed iron line emission from Centaurus X-3We present the first discovery of pulsed iron line emission from an X-ray binary, namely Cen X-3. Compared with the continuum pulsations, the iron line pulsations are shallow (50 percent change in amplitude), smeared (the profile is a single-peaked sinusoid) and phase-shifted (by about half a cycle). We also discuss the constraints on the origin of the line imposed by this discovery and by other observations.
Document ID
19930052412
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1086/172625
Authors
Day, C. S. R. (Universities Space Research Association; NASA, Goddard Space Flight Center Greenbelt, MD, United States)
Nagase, F. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Asai, K. (Inst. of Space and Astronautical Science Sagamihara, Japan)
Takeshima, T. (Inst. of Physical and Chemical Research Wako, Japan)
Date Acquired
August 16, 2013
Publication Date
May 10, 1993
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 408
Issue: 2
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
93A36409
Distribution Limits
Public
Copyright
Other

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