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Astron. Astrophys. 356, L30-L32 (2000)


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Letter to the Editor

UV light curves of thermonuclear supernovae

S.I. Blinnikov 1,2,3 and E.I. Sorokina 4

1 Institute for Theoretical and Experimental Physics, 117218 Moscow, Russia (sergei.blinnikov@itep.ru)
2 Max-Planck-Institut für Astrophysik, 85740 Garching, Germany
3 Institute of Laser Engineering, Osaka, 565-0871, Japan
4 Sternberg Astronomical Institute, 119899 Moscow, Russia (sorokina@sai.msu.su)

Received 22 December 1999 / Accepted 6 March 2000

Abstract

Ultraviolet light curves are calculated for several thermonuclear supernova models using a multifrequency radiation hydrodynamic code. It is found that Chandrasekhar-mass models produce very similar light curves both for detonation and deflagration. Sub-Chandrasekhar-mass models essentially differ from "normal" Chandrasekhar ones regarding behaviour of their UV fluxes. Differences in absolute brightness and in shape of light curves of thermonuclear supernovae could be detectable up to 300 Mpc with modern UV space telescopes.

Key words: hydrodynamics – methods: numerical – stars: supernovae: general – ultraviolet: stars


© European Southern Observatory (ESO) 2000

Online publication: March 28, 2000

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