Gamma-Ray Pulsars Expected in the Outer Gap Model of Gamma-Ray Emission

We study the possibility of high-energy gamma-ray emission from the known 1130 radio pulsars based on the outer gap model of high-energy emission from pulsars. We estimate the fractional size of outer gap, the integrated flux, the gamma-ray luminosity for each known radio pulsar, and find that only...

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Bibliographic Details
Published in:Chinese physics letters 2003-03, Vol.20 (3), p.433-435
Main Authors: Li, Zhang, Jie, Wu, Ze-Jun, Jiang, Dong-Cheng, Mei
Format: Article
Language:English
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Summary:We study the possibility of high-energy gamma-ray emission from the known 1130 radio pulsars based on the outer gap model of high-energy emission from pulsars. We estimate the fractional size of outer gap, the integrated flux, the gamma-ray luminosity for each known radio pulsar, and find that only 14% of the known radio pulsars are gamma-ray emitters according to the outer gap model. In the sample of possible 156 gamma-ray pulsars, our statistical analysis indicates that the distributions of the spin-down powers and the ages of these pulsars concentrate mainly on 1033.5-1039 erg/s and 103-107 y, respectively. The predictions of gamma-ray pulsars detected by the AGILE and GLAST missions are given.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/20/3/335