Optical spectra near maximum light of the type IA supernova 1989B
Open Access
- 1 October 1989
- journal article
- research article
- Published by IOP Publishing in Publications of the Astronomical Society of the Pacific
- Vol. 101 (644) , 921
- https://doi.org/10.1086/132553
Abstract
NGC3627. SN 1989B appears to be a typical Type Ia supernova with an envelope expansion velocity of ~10,600 km s-1^ near maximum light. The presence of diffuse interstellar bands and Na I absorption attributable to the interstellar medium (ISM) of NGC 3627 indicates significant obscuration of the supernova. If relations between the strengths of these features and E (B-V) derived for the Galaxy can be applied to the ISM of NGC 3627, the indicated E(B-V) is ~0.8 for SN 1989B.Keywords
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