Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999pasj...51..525k&link_type=abstract
Publications of the Astronomical Society of Japan, v.51, p.525-535.
Astronomy and Astrophysics
Astronomy
25
Stars: Individual (U Scorpii, V394 Coronae Australis, T Coronae Borealis, V745 Scorpii), Stars: Mass Loss, Stars: Novae, Stars: Population Ii, Stars: White Dwarfs
Scientific paper
Wind mass-loss solutions and theoretical light curves for rapid outbursts of recurrent novae are presented for a wide range of parameters of white-dwarf masses of 1.2, 1.3, 1.35, and 1.377 MO with envelope compositions of X=0.7, 0.35, and 0.1 and heavy element contents of Z=0.001, 0.004, 0.01, 0.02, 0.05, and 0.1. Very rapid optical decline (t_3 < 10 days) is obtained only in very massive white dwarfs ( > 1.35 MO ) for Z=0.02. Systematic differences of evolutionary time-scale and of the wind velocity are predicted between novae of Populations I and II. The light-curve fittings of four recurrent novae U Sco, V394 CrA, T CrB, and V745 Sco, show that these systems contain a very massive white dwarf of mass 1.35-1.38 MO .
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