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Spectral modelling of the 'super-Chandrasekhar' Type Ia SN 2009dc - testing a 2 M⊙ white dwarf explosion model and alternatives

Hachinger, S; Mazzali, Paolo A; Taubenberger, Stefano; Fink, M; Pakmor, R; Hillebrandt, Wolfgang; Seitenzahl, Ivo

Description

Extremely luminous, ‘super-Chandrasekhar’ (SC) Type Ia Supernovae (SNe Ia) are as yet an unexplained phenomenon. We analyse a well-observed SN of this class, SN 2009dc, by modelling its photospheric spectra with a spectral synthesis code, using the technique of ‘Abundance Tomography’. We present spectral models based on different density profiles, corresponding to different explosion scenarios, and discuss their consistency. First, we use a density structure of a simulated explosion of a 2 M⊙...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
URI: http://hdl.handle.net/1885/152591
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1111/j.1365-2966.2012.22068.x
Access Rights: Open Access

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