The white dwarf (WD) cooling times are largely affected by the assumption on the conductive opacity. In the present work we computed various cooling sequences for a typical DA WD of mass 0.6 M_sun under different choices for the electron conductivity. We conclude that the present uncertainty on the times at the faint end of the cooling sequence (log L/Lsun ~ -5.5) is of the order of 17%, which correspond to about 2 Gyr.
White dwarf cooling sequences: theoretical uncertainties
PRADA MORONI, PIER GIORGIO;
2003-01-01
Abstract
The white dwarf (WD) cooling times are largely affected by the assumption on the conductive opacity. In the present work we computed various cooling sequences for a typical DA WD of mass 0.6 M_sun under different choices for the electron conductivity. We conclude that the present uncertainty on the times at the faint end of the cooling sequence (log L/Lsun ~ -5.5) is of the order of 17%, which correspond to about 2 Gyr.File in questo prodotto:
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