Gamma Radiation from PSR B1055−52
Author(s) -
D. J. Thompson,
M. Bailes,
D. L. Bertsch,
J. M. Cordes,
N. D’Amico,
J. A. Esposito,
J. P. Finley,
R. C. Hartman,
W. Hermsen,
G. Kanbach,
V. M. Kaspi,
D. A. Kniffen,
L. Kuiper,
Y. C. Lin,
A. G. Lyne,
R. N. Manchester,
S. M. Matz,
H. A. MayerHasselwander,
P. F. Michelson,
P. L. Nolan,
H. Öğelman,
M. Pohl,
P. V. Ramanamurthy,
P. Sreekumar,
O. Reimer,
J. H. Taylor,
M. P. Ulmer
Publication year - 1999
Publication title -
the astrophysical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.376
H-Index - 489
eISSN - 1538-4357
pISSN - 0004-637X
DOI - 10.1086/307083
Subject(s) - physics , pulsar , astrophysics , gamma ray , observatory , astronomy , gamma ray astronomy , light curve , radiation , cutoff , neutron star , nuclear physics , quantum mechanics
The telescopes on the Compton Gamma Ray Observatory (CGRO) have observed PSRB1055-52 a number of times between 1991 and 1998. From these data, a moredetailed picture of the gamma radiation from this source has been developed,showing several characteristics which distinguish this pulsar: the light curveis complex; there is no detectable unpulsed emission; the energy spectrum isflat, with no evidence of a sharp high-energy cutoff up to >4 GeV. Comparisonsof the gamma-ray data with observations at longer wavelengths show that no twoof the known gamma-ray pulsars have quite the same characteristics; thisdiversity make s interpretation in terms of theoretical models difficult.Comment: 31 pages, 5 figures and 1 separate table, accepted for publication in Ap
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