Spectral modelling of the 'super-Chandrasekhar' Type Ia SN 2009dc - testing a 2 M⊙ white dwarf explosion model and alternatives
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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]
Collections | ANU Research Publications |
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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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01_Hachinger_Spectral_modelling_of_the_2012.pdf | 1.85 MB | Adobe PDF |
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