X-ray line emission from the supernova remnant G292.0 + 1.8

Astronomy and Astrophysics – Astronomy

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Stellar Spectra, Supernova Remnants, X Ray Sources, X Ray Spectra, Abundance, Emission Spectra, Line Spectra, Sulfur

Scientific paper

The Solid State Spectrometer on the Einstein Observatory has detected line emission from Mg, Si and S in the thermal X-ray spectrum of the supernova remnant G292.0 + 1.8. An over-abundance of sulfur and a probable under-abundance of iron relative to their solar values is indicated by the data. The X-ray and optical data for this object support an interpretation of emission originating in ejecta from the comparatively recent explosion of a massive (about 20-solar-mass) progenitor star.

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