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Title:
A TeV triple peak from PSR 1509-58?
Authors:
de Jager, O. C.; Raubenheimer, B. C.; North, A. R.; Nel, H. I.; van Urk, G.
Affiliation:
AA(Potchefstroom University for Christian Higher Education, Republic of South Africa), AB(Potchefstroom University for Christian Higher Education, Republic of South Africa), AC(Potchefstroom University for Christian Higher Education, Republic of South Africa), AD(Potchefstroom University for Christian Higher Education, Republic of South Africa), AE(Potchefstroom University for Christian Higher Education, Republic of South Africa)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 329, June 15, 1988, p. 831-837. (ApJ Homepage)
Publication Date:
06/1988
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
GAMMA RAYS, LIGHT CURVE, PULSARS, STELLAR RADIATION, X RAY SOURCES, STELLAR LUMINOSITY, SUPERNOVA REMNANTS
DOI:
10.1086/166427
Bibliographic Code:
1988ApJ...329..831D

Abstract

Very high energy (VHE) gamma-ray observations of PSR 1509-58 with the Potchefstroom Cerenkov telescope produced positive results which indicate that the light curve has a triple peak with phase conservation for at least 11 days, while the gamma-ray output was steady from night to night. The significance of the third harmonic alone is 6 x 10 to the -7th. A new test was developed to identify this pulsar at a final confidence level of 99.92 percent. The VHE luminosity of this pulsar is 3 x 10 to the 34th ergs/s at an energy threshold of 2 TeV. This luminosity is in accordance with calculations from existing outer gap gamma-ray production models.

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