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OSSE observations of the Crab pulsar

Authors :
Ulmer, M. P
Matz, S. M
Cameron, R. A
Grabelsky, D. A
Grove, J. E
Johnson, W. N
Jung, G. V
Kinzer, R. L
Kurfess, J. D
Leising, M. D
Source :
NASA. Goddard Space Flight Center, The Compton Observatory Science Workshop.
Publication Year :
1992
Publisher :
United States: NASA Center for Aerospace Information (CASI), 1992.

Abstract

Preliminary results are presented of the Compton Gamma Ray Observatory Oriented Scintillation Spectrometer Experiment (OSSE) observations of the Crab pulsar. The pulsar energy spectra and light curves are in general agreement with previous observations, validating the OSSE pulsar data acquisition modes and data analysis algorithms. The data suggest that the spectrum of the pulsar varies throughout the light curve. The 'interpulse' region has a slightly flatter spectrum in the approx. 60 to 250 keV region and a slightly steeper spectrum at higher energies than the two main pulses. No evidence was found for any lines in the spectra with a typical sensitivity of about 10(exp -4) photons/sq cm/s.

Subjects

Subjects :
Astrophysics

Details

Language :
English
Database :
NASA Technical Reports
Journal :
NASA. Goddard Space Flight Center, The Compton Observatory Science Workshop
Publication Type :
Report
Accession number :
edsnas.19920012663
Document Type :
Report