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SN 2010lp---a Type Ia supernova from a violent merger of two carbon--oxygen White Dwarfs
M. Kromer, R. Pakmor, S. Taubenberger +6
SN 2010lp is a subluminous Type Ia supernova (SN Ia) with slowly-evolving lightcurves. Moreover, it is the only subluminous SN Ia observed so far that shows narrow emission lines o…
Predicting the amount of hydrogen stripped by the supernova explosion for SN 2002cx-like SNe Ia
Zheng-Wei Liu, M. Kromer, M. Fink +5
The most favored progenitor scenarios for Type Ia supernovae (SNe Ia) involve the single-degenerate (SD) scenario and the double-degenerate scenario. The absence of stripped hydrog…
Solar abundance of manganese: a case for the existence of near Chandrasekhar-mass Type Ia supernova progenitors
Ivo R. Seitenzahl, Gabriele Cescutti, Friedrich K. Roepke +2
Context: Manganese is predominantly synthesised in Type Ia supernova (SN Ia) explosions. Owing to the entropy dependence of the Mn yield in explosive thermonuclear burning, SNe Ia…
Synthetic light curves and spectra for three-dimensional delayed-detonation models of Type Ia supernovae
S. A. Sim, I. R. Seitenzahl, M. Kromer +7
In a companion paper, Seitenzahl et al. (2013) presented a set of three-dimensional delayed detonation models for thermonuclear explosions of near-Chandrasekhar mass white dwarfs (…
[OI] 6300,6364 in the nebular spectrum of a subluminous Type Ia supernova
S. Taubenberger, M. Kromer, R. Pakmor +5
In this letter a late-phase spectrum of SN 2010lp, a subluminous Type Ia supernova (SN Ia), is presented and analysed. As in 1991bg-like SNe Ia at comparable epochs, the spectrum i…
The impact of Type Ia supernova explosions on helium companions in the Chandrasekhar-mass explosion scenario
Zheng-Wei Liu, Ruediger Pakmor, Ivo Seitenzahl +8
In the version of the SD scenario of SNe Ia studied here, a CO WD explodes close to the Chandrasekhar limit after accreting material from a non-degenerate He companion. In the pres…