A large mass of iron in supernova 1991T
Open Access
- 1 September 1992
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 258 (1) , 53P-56P
- https://doi.org/10.1093/mnras/258.1.53p
Abstract
We present quantitative intensity measurements of several forbidden transitions of FE II and FE III in the spectrum of the type Ia supernova 1991T at age 1 yr. The two species account for virtually the entire observed optical and near-infrared spectrum. These data are fundamental to tests of the explosion models of supernovae, and allow a direct determination of the mass of 56Ni produced. The line intensities support models that require most of the white dwarf precursor to be converted to 56Ni.Keywords
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