Elemental abundances in a Type I supernova remnant

Details Elemental abundances in a Type I supernova remnant Elemental abundances in a Type I supernova remnant

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...235l...5b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 235, Jan. 1, 1980, p. L5-L8.

Astronomy and Astrophysics

Astronomy

49

Abundance, Supernova Remnants, X Ray Astronomy, X Ray Spectra, Heao 2, Line Spectra, Nebulae, Plasma Spectra, Satellite-Borne Instruments, Spectral Energy Distribution

Scientific paper

The solid-state spectrometer (SSS) on the HEAO 2 (Einstein) X-ray observatory observed the X-ray spectrum of Tycho's SNR. The observations show a relative excess of line emission from Si, S, and Ar by not less than 6 compared to that expected from a plasma of solar composition in collisional equilibrium and by a factor of not less than 3 compared to Cas A. Similar excesses are not found for line emission from Mg and Fe. The data suggest that the SN observed by Tycho in 1572 produced significant amounts of Si group elements but did not eject large amounts of Fe as predicted by some models of Type I SN events.

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