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Pulse sharpness and asymmetry in millisecond pulsarsThe light curves of radiation from antipodal caps of rapidly rotating neutron stars are calcuated with and without gravity. The light curves depend strongly on the rotation speed and on the emission spectrum and could become quite sharp. Gravity generally flattens the light curves, but it does so less for rapidly rotating neutron stars and the newly discovered PSR 1957+20, and can never flatten them enough to explain the absence of pulsation from low-mass X-ray binaries. Rotation also causes an asymmetry in the pulses similar to that caused by interstellar medium absorption or scattering.
Document ID
19890048879
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Chen, Kaiyou
(Columbia Univ. New York, NY, United States)
Shaham, Jacob
(Columbia University New York, United States)
Date Acquired
August 14, 2013
Publication Date
April 1, 1989
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 339
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
89A36250
Funding Number(s)
CONTRACT_GRANT: NAGW-567
Distribution Limits
Public
Copyright
Other

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