An Observational Limit on Circumstellar H-Alpha from Supernova 1994D

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dc.creatorCumming, R. J.
dc.creatorLundqvist, P.
dc.creatorSmith, L. J.
dc.creatorPettini, M.
dc.creatorKing, D. L.
dc.date1995-12-18
dc.date.accessioned2026-07-07T02:20:38Z
dc.date.available2026-07-07T02:20:38Z
dc.descriptionWe searched for narrow H$α$ in a high-resolution spectrum of SN 1994D taken 10 days before maximum, and found none. We estimate the limit this places on the progenitor mass loss, and find that it is competitive with recent radio limits, and excludes the highest-mass-loss-rate symbiotic systems as possible progenitors of the normal Type Ia SN 1994D.
dc.description7 pages PostScript, to appear in Proceedings of the NATO Advanced Study Institute on Thermonuclear Supernovae, eds. R. Canal, P. Ruiz-Lapuente, J. Isern (Dordrecht: Kluwer)
dc.identifierhttps://arxiv.org/abs/astro-ph/9512112
dc.identifierhttp://arxiv.org/abs/astro-ph/9512112
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/10273
dc.subjectAstrophysics
dc.titleAn Observational Limit on Circumstellar H-Alpha from Supernova 1994D
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