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Title:
EXOSAT observation of the supernova remnant MSH 15-52
Authors:
Trussoni, E.; Brinkmann, W.; Ogelman, H.; Hasinger, G.; Aschenbach, B.; Ferrari, A.
Affiliation:
AA(Torino, Osservatorio Astronomico, Pino Torinese, Italy), AB(Max-Planck-Institut fuer Extraterrestrische Physik, Garching, Federal Republic of Germany), AC(Max-Planck-Institut fuer Extraterrestrische Physik, Garching, Federal Republic of Germany), AD(Max-Planck-Institut fuer Extraterrestrische Physik, Garching, Federal Republic of Germany), AE(Max-Planck-Institut fuer Extraterrestrische Physik, Garching, Federal Republic of Germany)
Publication:
Astronomy and Astrophysics (ISSN 0004-6361), vol. 234, no. 1-2, Aug. 1990, p. 403-409. (A&A Homepage)
Publication Date:
08/1990
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
EXOSAT SATELLITE, PULSARS, SUPERNOVA REMNANTS, X RAY SPECTROSCOPY, BREMSSTRAHLUNG, POWER SPECTRA, STELLAR LUMINOSITY, STELLAR MODELS, SYNCHROTRON RADIATION
Bibliographic Code:
1990A&A...234..403T

Abstract

The results of an Exosat observation of the supernova remnant MSH 15-52 and of the pulsar PSR 1509-58 are presented and discussed. In the energy range 1.6-11 keV, the radiation flux of the nebula surrounding the pulsar detected by the ME instrument has been fitted with a power law spectrum with index alpha about 1.86 (photon spectrum) and column density N(H) about 6.6 x 10 to the 21st/sq cm. In the same energy range, the pulsed radiation from PSR 1509-58 shows a much harder spectrum: alpha about 1.1, while the period of the pulsar has been measured with a value of about 0.150362 s, in agreement with extrapolation from previous observations at X and radio frequencies. These radiation and spectral features are consistent with the fluxes detected in the LE telescope (energy range 0.02-2.5 keV), and are discussed and compared with previous observations of the Einstein satellite.

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