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A statistical analysis of circumstellar material in Type Ia supernovae

Abstract:

A key tracer of the elusive progenitor systems of Type Ia supernovae (SNe Ia) is the detection of narrow blueshifted time-varying Na I D absorption lines, interpreted as evidence of circumstellar material (CSM) surrounding the progenitor system. The origin of this material is controversial, but the simplest explanation is that it results from previous mass loss in a system containing a white dwarf and a non-degenerate companion star. We present new single-epoch intermediate-resolution spectra...

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Publication status:
Published

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Publisher copy:
10.1093/mnras/stt1586

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Astrophysics
Role:
Author
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Journal:
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume:
436
Issue:
1
Pages:
222-240
Publication date:
2013-08-18
DOI:
EISSN:
1365-2966
ISSN:
0035-8711
URN:
uuid:fd64f675-a3b8-4fe7-96db-dd95aaaecd1b
Source identifiers:
420807
Local pid:
pubs:420807
Language:
English
Keywords:

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