The circumstellar medium of the peculiar supernova SN1997ab

Bibcode
1998MNRAS.300L..17S
DOI
10.1046/j.1365-8711.1998.02093.x
Salamanca, Isabel; Cid-Fernandes, Roberto; Tenorio-Tagle, Guillermo; Telles, Eduardo; Terlevich, Roberto J.; Munoz-Tunon, Casiana
Bibliographical reference

Monthly Notices of the Royal Astronomical Society, Volume 300, Issue 2, pp. L17-L21.

Advertised on:
10
1998
Journal
Monthly Notices of the Royal Astronomical Society
Number of authors
6
IAC number of authors
1
Citations
59
Refereed citations
49
Description
We report the detection of the slow-moving wind into which the compact supernova remnant SN 1997ab is expanding. Echelle spectroscopy provides clear evidence for a well-resolved narrow (full width at zero intensity, FWZI ~180 km s^-1) P Cygni profile, both in Hα and Hβ, superimposed on the broad emission lines of this compact supernova remnant. From theoretical arguments we know that the broad and strong emission lines imply a circumstellar density (n>=10^7cm^-3). This, together with our detection, implies a massive and slow stellar wind experienced by the progenitor star shortly prior to the explosion.
Type
Refereed
Circumstellar matter
Supernova remnants

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