2010ApJ...725..296F

Query : 2010ApJ...725..296F

2010ApJ...725..296F - Astrophys. J., 725, 296-308 (2010/December-2)

Spectra of type Ia supernovae from double degenerate mergers.

FRYER C.L., RUITER A.J., BELCZYNSKI K., BROWN P.J., BUFANO F., DIEHL S., FONTES C.J., FREY L.H., HOLLAND S.T., HUNGERFORD A.L., IMMLER S., MAZZALI P., MEAKIN C., MILNE P.A., RASKIN C. and TIMMES F.X.

Abstract (from CDS):

The merger of two white dwarfs (aka double-degenerate merger) has often been cited as a potential progenitor of Type Ia supernovae. Here we combine population synthesis, merger, and explosion models with radiation-hydrodynamics light-curve models to study the implications of such a progenitor scenario on the observed Type Ia supernova population. Our standard model, assuming double-degenerate mergers do produce thermonuclear explosions, produces supernova light curves that are broader than the observed type Ia sample. In addition, we discuss how the shock breakout and spectral features of these double-degenerate progenitors will differ from the canonical bare Chandrasekhar-massed explosion models. We conclude with a discussion of how one might reconcile these differences with current observations.

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Journal keyword(s): binaries: close - supernovae: general - white dwarfs

Simbad objects: 1

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Number of rows : 1
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 2005gj SN* 03 01 11.96 -00 33 13.9   18.6       SNIapec 209 1

Query : 2010ApJ...725..296F

Basic data :
SN 2005gj -- SuperNova
Other object types: otypes_help 		SN* (2012MNRAS,SN,...)
ICRS coord. (ep=J2000) : 		03 01 11.96 -00 33 13.9 (Optical) [ ] C 2008AJ....135.1766Z
FK4 coord. (ep=B1950 eq=1950) : 		02 58 38.75 -00 45 02.9 [ ]
Gal coord. (ep=J2000) : 		177.88766 -49.06719 [ ]
Radial velocity / Redshift / cz : 		V(km/s) 17956 [150] / z(spectroscopic) 0.0618 [0.0005] / cz 18527 [150]
   C 2008AJ....135..348S
Spectral type: 		SNIapec C 2008yCat....1.2024B
Fluxes (2) :
B 18.6 [~] E ~
g 17.35 [~] D 2008yCat.2283....0B
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SN 2005gj SDSS-II SN 4524

References (209 between 1850 and 2026) (Total 209)
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