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Session 50 -- White Dwarfs

Display presentation, Thursday, January 13, 9:30-6:45, Salons I/II Room (Crystal Gateway)

[50.02] Revised White Dwarf Evolutionary Models and the Age of the Galaxy

We present new evolutionary models of white dwarf stars which incorporate the new OPAL radiative opacities (Iglesias \& Rogers 1993, ApJ, 412, 752), the Lenzuni, Chernoff, \& Salpeter (1991, ApJS, 76, 759) radiative opacities, recent improvements to the conductive opacities of the Japanese group (Itoh \& Kohyama 1993, ApJ, 404, 268, Itoh et al.\ 1993, ApJ, in press) and an improved opacity interpolation in the intermediate regime where no opacities currently exist. We present the new age-luminosity curves which result from these changes, and discuss the effects on the inferred age of the local Galactic disk.

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