2001NewA....6..307P

Query : 2001NewA....6..307P

2001NewA....6..307P - New Astronomy, 6, 307-319 (2001/August-0)

The type Ia supernova width-luminosity relation.

PINTO P.A. and EASTMAN R.G.

Abstract (from CDS):

Observations of type Ia supernovae at high redshifts have become an important tool for studying the geometry of the universe. The relation between the duration of the peak phase of a type Ia supernova's lightcurve and its luminosity (broader is brighter) forms the cornerstone of this measurement, yet it is a purely empirical relation. In this paper we show that the relation is a natural consequence of the radiation transport in type Ia supernovae and suggest constraints on the nature of the explosions which arise from our interpretation of the observed relation. The principle parameter underlying the relation is the mass of radioactive 56Ni produced in the explosion. The relation is shown to be relatively insensitive to most other parameters in Chandrasekhar-mass explosions. Cosmological results are thus unlikely to suffer from systematic effects stemming from evolution in the explosions' progenitors.

Abstract Copyright: ∼

Journal keyword(s): Supernovae: general - Distance scale - Radiative transfer

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 1991bg SN* 12 25 03.70 +12 52 15.6   14.75 14.3     SNIapec 612 1

Query : 2001NewA....6..307P

Basic data :
SN 1991bg -- SuperNova
Other object types: otypes_help 		SN* (2012MNRAS,SN), V* (AAVSO), gB (GRB)
ICRS coord. (ep=J2000) : 		12 25 03.70 +12 52 15.6 [ 1000 1000 90 ] D 1991IAUC.5400....1K
FK4 coord. (ep=B1950 eq=1950) : 		12 22 31.54 +13 08 52.4 [ 1000 1000 90 ]
Gal coord. (ep=J2000) : 		278.22665 +74.46352 [ 1000 1000 90 ]
Radial velocity / Redshift / cz : 		V(km/s) 1256 [~] / z(~) 0.0042 [~] / cz 1259 [~]
   D 2003ApJ...594....1T
Spectral type: 		SNIapec C 2008yCat....1.2024B
Fluxes (2) :
B 14.75 [~] D 2008yCat.2283....0B
V 14.3 [~] E ~
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Hierarchy : number of linked objects
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Identifiers (3) :
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SN 1991bg GRB 911125 AAVSO 1220+13

References (612 between 1850 and 2026) (Total 612)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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