2007ApJ...669L..17H

Query : 2007ApJ...669L..17H

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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Number of rows : 11
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 SN 2005hj SN* 01 26 48.40 -01 14 17.2       17.40   SNIa 100 1
2 SN 2002bo SN* 10 18 06.51 +21 49 41.7   13.95       SNIa 325 1
3 SN 1998aq SN* 11 56 25.87 +55 07 43.2   12.31 14.9     SNIa 197 1
4 SN 1994D SN* 12 34 02.395 +07 42 05.70   11.75 12.03     SNIa 559 1
5 SN 1991T SN* 12 34 10.20 +02 39 56.4   11.70 11.51     SNIapec 795 1
6 SN 1990N SN* 12 42 56.68 +13 15 23.4   12.69 12.62     SNIa 406 1
7 SN 2006D SN* 12 52 33.87 -09 46 30.7           SNIa 107 1
8 SN 2003fg SN* 14 16 18.924 +52 14 53.68           SNIa 141 1
9 SN 2001ay SN* 14 26 17.00 +26 14 55.8     16.9     SNIap 82 1
10 SN 2006gz SN* 18 10 26.33 +30 59 44.4   16.6       SNIa 156 1
11 IC 1277 GiP 18 10 27.3043582104 +31 00 11.717360100   15.0       ~ 35 0

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