EXOSAT observations of the TYCHO supernova remnant

Details EXOSAT observations of the TYCHO supernova remnant EXOSAT observations of the TYCHO supernova remnant

Feb 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...325..288s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 325, Feb. 1, 1988, p. 288-295.

Astronomy and Astrophysics

Astrophysics

22

Astronomical Spectroscopy, Emission Spectra, Exosat Satellite, Supernova Remnants, X Ray Spectra, Continuous Spectra, Hydrodynamics, Proportional Counters, X Ray Sources

Scientific paper

The Gas Scintillation Proportional Counter and the Medium Energy Instruments on board EXOSAT were used to measure the X-ray spectrum of the Tycho supernova remnant over the range 1.5 - 10 keV. The emission lines due to S, Ar, Ca, and Fe (≡6.48 keV) are clearly resolved from the underlying continuum which is measured to have a temperature of 6.5±0.5 keV. From a consideration of all available X-ray observations it is suggested that the 6.5 keV continuum and the Fe K emission arise in the primary shock while the emission due to Si, S, Ar, and Ca and the emission observed in the LE are associated with the reverse shock.

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