Observation of a correlation between main‐on intensity and spin behavior in Her X‐1
作者:
Robert B. Wilson,
Mark H. Finger,
Geoffrey R. Pendleton,
Michael Briggs,
Lars Bildsten,
期刊:
AIP Conference Proceedings
(AIP Available online 1994)
卷期:
Volume 308,
issue 1
页码: 475-478
ISSN:0094-243X
年代: 1994
DOI:10.1063/1.45990
出版商: AIP
数据来源: AIP
摘要:
Using BATSE observations of Her X‐1 for the entire CGRO mission to date, a correlation is observed between the hard x‐ray pulsed flux at the peak of the main‐on portion of the 35d cycle and the spin frequency derivative, a measure of the torque acting on the neutron star. An apparent correlation is also found between the 35 day cycle start times and the pulsed flux. Orbital parameters are also obtained, with evidence for orbital decay with a timescale slightly less than reported in Deeteretal. (1991). ©1994 American Institute of Physics.
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