Supernova spectra and young remnants

Details Supernova spectra and young remnants Supernova spectra and young remnants

Sep 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978mmsai..49..465k&link_type=abstract

(Società Astronomica Italiana and Consiglio Nazionale delle Ricerche, Workshop on Supernovae and Supernova Remnants, 1st, Erice,

Astronomy and Astrophysics

Astronomy

3

Interstellar Matter, Stellar Mass Ejection, Supernova Remnants, Chemical Composition, Crab Nebula, Stellar Spectrophotometry

Scientific paper

Observations of extragalactic supernovae indicate that a dense shell of matter is ejected at a velocity near 5000 km/s (SN II) or 10,000 km/s (SN I). In two cases, the Crab Nebula, and the fast moving knots of Cas A, galactic supernova remnants exhibit matter that is moving at high velocity and that was formerly inside the star that exploded. Galactic remnants also provide evidence that the supernova event is sometimes preceded by mass loss. In Tycho's remnant, and in the remnant of the 1006 supernova, the material we see is probably interstellar.

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