The X-ray spectrum of the supernova remnant W49B from EXOSAT

Details The X-ray spectrum of the supernova remnant W49B from EXOSAT The X-ray spectrum of the supernova remnant W49B from EXOSAT

Sep 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...296..469s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 296, Sept. 15, 1985, p. 469-474. SERC-supported research.

Astronomy and Astrophysics

Astronomy

27

Astronomical Spectroscopy, Exosat Satellite, Spaceborne Astronomy, Supernova Remnants, X Ray Astronomy, Emission Spectra, Energy Spectra, Nebulae, Scintillation Counters

Scientific paper

X-ray observations of the supernova remnant W49B made by the medium-energy detector and gas scintillation propotional counter experiments on board Exosat are presented. The detection of a very strong emission line feature at 6.7 keV indicates a thermal origin of the X-rays. Fitting the spectral data with an optically thin thermal plasma model indicates a temperature of 2 keV for the remnant. From a consideration of Exosat, Einstein, and radio data, it is suggested that the dominant observed X-ray emission comes from a reverse shock.

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