Supernovae from the 8-10 M_⊙ range: the first spectral models for the emission-line phase
Abstract
Stars in the MZAMS=8-10 M_⊙ range are expected to account for about 1/3 of all core-collapse supernovae (SNe). Here we describe calculations of the first spectral models in the nebular phase (t>200d) for such SNe, and the diagnostic potential of these. Comparison of a 9 M_⊙ SN model with SN 1997D suggests that the observational class of subluminous Type IIP SNe is linked to the low-mass end of progenitors. We discuss potential diagnostics of electron capture supernovae from 58Ni lines.
- Publication:
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Memorie della Societa Astronomica Italiana
- Pub Date:
- 2017
- Bibcode:
- 2017MmSAI..88..278J
- Keywords:
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- Stars: supernovae