Optically thick winds from degenerate dwarfs. I. : J/ApJS/113/121


Authors : Kato M. orcid (hide) et..al

Bibcode : 1997ApJS..113..121K (ADS) (Simbad) (Objects) (hide)

CDS Keywords : Novae; Models, evolutionary
UAT : Novae, Stellar evolutionary models

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Inserted into VizieR : 16-Mar-1998
Last modification : 27-Mar-1998

Optically thick winds from degenerate dwarfs. I. Classical nova of populations I and II (1997)

Keywords : novae, cataclysmic variables - stars evolution - stars: interior - stars: mass-loss - white dwarfs - X-rays: stars

Abstract:Twenty-six sequences of optically thick wind solutions have been calculated which mimic the time-dependent evolution of classical novae of populations I and II. The peak of the new opacity around log T=5.2 due to iron lines is found to be strong enough to accelerate the winds even in very low iron abundance such as Z=0.001 for massive white dwarfs (>=0.8M_{sun}_). The old population novae show the slow light curve, the long X-ray turn-off time, the small expansion velocity and the small wind mass-loss rate. The X-ray turn-off time is a good indicator of the white dwarf mass because of its strong dependence on the white dwarf mass and weak dependence on the populations. The white dwarf mass is estimated to be ~0.6M_{sun}_ for GQ Mus and ~1.0M_{sun}_ ...(more)
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