SIMBAD references

2007ApJ...669L..17H - Astrophys. J., 669, L17-L20 (2007/November-1)

The luminous and carbon-rich supernova 2006gz: a double degenerate merger?

HICKEN M., GARNAVICH P.M., PRIETO J.L., BLONDIN S., DEPOY D.L., KIRSHNER R.P. and PARRENT J.

Abstract (from CDS):

Spectra and light curves of SN 2006gz show the strongest signature of unburned carbon and one of the slowest fading light curves ever seen in a Type Ia event [Δm15(B)=0.69±0.04]. The early-time Si II velocity is low, implying it was slowed by an envelope of unburned material. Our best estimate of the luminosity implies MV=-19.74 and the production of ∼1.2 M☉ of 56Ni. This suggests a super-Chandrasekhar mass progenitor. A double degenerate merger is consistent with these observations.

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Journal keyword(s): Stars: Supernovae: General - supernovae: individual (SN 2006gz)

Simbad objects: 11

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