Type I supernovae. II. The spectrum of SN 1972e in NGC 5253, 250 days after the explosion.
Abstract
The spectrum of Type I supernova, 250 days after the explosion, has been computed using the three density models able to fit the observed spectrum at t 30 days. We assume that pv(t) = pv(t0)(toIt)3. The results are compared with the observed spectrum of SN l972e in NGC 5253 corresponding to the same stage of evolution. The best fit is obtained for a density model in the supernova shell of the type p = p0(v0/v)2. Lower limits of the abundance of 0, Ne, Ar, Fe, and S relative to He are given. Subject headings: galaxies: individual - stars: supernovae
- Publication:
-
The Astrophysical Journal
- Pub Date:
- August 1976
- DOI:
- 10.1086/154556
- Bibcode:
- 1976ApJ...207..860G
- Keywords:
-
- Stellar Evolution;
- Stellar Models;
- Stellar Spectra;
- Supernovae;
- Abundance;
- Astronomical Models;
- Explosions;
- Line Spectra;
- Luminous Intensity;
- Stellar Luminosity;
- Astrophysics