Abstract
view Abstract Citations (17) References (14) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The pulse profile of the Crab pulsar in the energy range 45 keV-1.2 MeV. Wilson, R. B. ; Fishman, G. J. Abstract The Crab Nebula pulsar (PSR 0531+21) is the best studied and most intense of the nontransient X-ray pulsars. However, since its spectrum drops rapidly with energy, a well-resolved pulse profile has not previously been obtained above 200 keV. In the hard X-ray and low-energy gamma-ray region, an accurate pulse profile can be obtained with a balloon-borne detector of sufficient area during a single transit of the source. A new measurement of the pulse profile of PSR 0531+21 in the energy range above 45 keV obtained with a large-area scintillation detector array is reported. The detector array was flown on a balloon launched from Palestine, Texas on 1980 October 6, reaching a float altitude 4.5 g/sq cm at 0230 UTC October 7. The primary objective of the experiment was to detect and study weak gamma-ray bursts. Publication: The Astrophysical Journal Pub Date: June 1983 DOI: 10.1086/161039 Bibcode: 1983ApJ...269..273W Keywords: Crab Nebula; Energy Spectra; Gamma Rays; Pulsars; X Ray Sources; Balloon Sounding; Data Reduction; High Energy Interactions; Profiles; Radiation Detectors; Astrophysics full text sources ADS | data products SIMBAD (2)
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