On the source of the dust extinction in type Ia supernovae and the discovery of anomalously strong Na i absorption
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Phillips, M. M.
Simon, Joshua D.
Morrell, N
Burns, Christopher
Karakas, Amanda
Patat, Ferdinando
Hsiao, E Y
Contreras, C
Suntzeff, N
Penprase, B E
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IOP Publishing
Abstract
High-dispersion observations of the Na I D λλ5890, 5896 and K I λλ7665, 7699 interstellar lines, and the diffuse interstellar band at 5780 Å in the spectra of 32 Type Ia supernovae are used as an independent means of probing dust extinction. We show
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Astrophysical Journal, The
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2037-12-31
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