Optically thick winds from degenerate dwarfs. I. (Kato 1997)

Details Optically thick winds from degenerate dwarfs. I. (Kato 1997) Optically thick winds from degenerate dwarfs. I. (Kato 1997)

Feb 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998ycat..21130121k&link_type=abstract

VizieR On-line Data Catalog: J/ApJS/113/121. Originally published in: 1997ApJS..113..121K

Computer Science

Novae, Models: Evolutionary

Scientific paper

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; for V1974 Cyg. The systematic difference of the wind velocity is predicted between novae in globular clusters and in galactic disk. Twenty-six tables are presented in the computer readable form of CD-ROM that consists of solutions of the optically thick wind and the static for the decay phase of classical novae with composition of X=0.35, C=0.1 and O=0.2 and heavy elements content Z=0.001, 0.004, 0.02, 0.05 and 0.1 for the white dwarf masses of 0.4, 0.6, 0.7, 0.8, 0.9, 1.0, 1.2 and 1.35M&sun;. These tables list the characteristic values of the envelope such as the photospheric temperature, the velocity, the wind mass-loss rate and fluxes of four wavelength bands. The updated OPAL opacity (Iglesias & Rogers, 1996ApJ...464..943I) is used. (2 data files).

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