X-ray spectrum of the TYCHO SNR observed with EXOSAT

Details X-ray spectrum of the TYCHO SNR observed with EXOSAT X-ray spectrum of the TYCHO SNR observed with EXOSAT

Apr 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ssrv...40..467d&link_type=abstract

(ESA, ESLAB Symposium on X-Ray Astronomy in the EXOSAT Era, 18th, The Hague, Netherlands, Nov. 5-9, 1984) Space Science Reviews

Astronomy and Astrophysics

Astronomy

Exosat Satellite, Supernova Remnants, X Ray Astronomy, Abundance, Bremsstrahlung, Iron, X Ray Spectra

Scientific paper

The Gas Scintillation and Medium Energy instruments onboard EXOSAT measured the continuum and line emission spectrum in the Tycho supernova remnant. For the first time the iron line at 6.53 keV is clearly resolved from the continuum, in addition to the lines from S, Ar and Ca. The comparison with a non-equilibrium ionisation model (Hamilton et al., 1983) confirms the over-abundance of S and Ca, whereas the Fe abundance is found to be solar, which provides additional support that the predicted 0.1 - 1 M_sun; Fe in type I supernovae is presently not shocked to X-ray emitting temperatures.

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