NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-20 T06:26:23 PDT
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For refcode 2007ApJ...669L..17H:
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NED Abstract

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2007ApJ...669L..17H The Luminous and Carbon-rich Supernova 2006gz: A Double Degenerate Merger? M. Hicken, P. M. Garnavich, J. L. Prieto, S. Blondin, D. L. DePoy, R. P. Kirshner, and J. Parrent Abstract. 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 [{DELTA}m_15_(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 M_V_=-19.74 and the production of ~1.2 M_sun_ of ^56^Ni. This suggests a super-Chandrasekhar mass progenitor. A double degenerate merger is consistent with these observations. Key words: Stars: Supernovae: General, supernovae: individual (SN 2006gz)
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