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SAS-2 gamma-ray observations of PSR 1747-46Evidence is reported for the observation of gamma-ray emission from the radio pulsar PSR 1747-46 by the gamma-ray telescope aboard SAS 2. The evidence is based on the presence of both an approximately 3-sigma enhancement of gamma rays at the pulsar's location and an approximately 4-sigma peak in the phase plot of 79 gamma-ray events whose phase was calculated from the pulsar's known period. The gamma-ray pulsation is found to appear at a phase lag of about 0.16 from that predicted by the radio observations. The pulsed gamma-ray fluxes above 35 MeV and 100 MeV are estimated, and it is shown that the gamma-ray pulse width is similar to the radio pulse width. It is concluded that PSR 1747-46 is a most likely candidate for pulsed gamma-ray emission.
Document ID
19770027777
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Thompson, D. J.
(Middle East Technical Univ. Ankara, Turkey)
Fichtel, C. E.
(Middle East Technical Univ. Ankara, Turkey)
Kniffen, D. A.
(NASA Goddard Space Flight Center Greenbelt, Md., United States)
Ogelman, H. B.
(Middle East Technical University Ankara, Turkey)
Lamb, R. C.
(Middle East Technical Univ. Ankara, Turkey)
Date Acquired
August 8, 2013
Publication Date
January 1, 1976
Publication Information
Publication: Astrophysical Letters
Volume: 17
Issue: 4, 19
Subject Category
Astrophysics
Accession Number
77A10629
Distribution Limits
Public
Copyright
Other

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