Abstract
We present early-time near-infrared spectra of the type Ia supernova 1991T and latetime spectra of SNe 1991T and 1987A obtained with IRIS on the AAT and CGS4 on UKIRT. A large mass of iron is present in the ejecta of type Ia supernovae. The early-time 1.2 μm depression in the Ia spectra is due to a lack of line blanketing opacity rather than a blend of absorbers. Late-time spectra of SN 1987A obtained at an unprecedented 5 years after explosion are shown.
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© 1994 Springer Science+Business Media Dordrecht
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Spyromilio, J., Allen, D.A., Meikle, W.P.S., Graham, J.R., Pinto, P.A., Eastman, R.G. (1994). Infrared Spectroscopy of Supernovae. In: McLean, I.S. (eds) Infrared Astronomy with Arrays. Astrophysics and Space Science Library, vol 190. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1070-9_14
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DOI: https://doi.org/10.1007/978-94-011-1070-9_14
Publisher Name: Springer, Dordrecht
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