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On the source of the dust extinction in type Ia supernovae and the discovery of anomalously strong Na i absorption

Phillips, M. M.; Simon, Joshua D.; Morrell, N; Burns, Christopher R.; Karakas, Amanda; Patat, Ferdinando; Hsiao, E Y; Contreras, C; Suntzeff, N; Penprase, B E; Perley, Daniel; Pignata, G.; Campillay, A

Description

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

CollectionsANU Research Publications
Date published: 2013
Type: Journal article
URI: http://hdl.handle.net/1885/75735
Source: Astrophysical Journal, The
DOI: 10.1088/0004-637X/779/1/38

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