Mass Loss Predictions for Hot (Pre-)White Dwarfs

Details Mass Loss Predictions for Hot (Pre-)White Dwarfs Mass Loss Predictions for Hot (Pre-)White Dwarfs

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aspc..372..201u&link_type=abstract

15th European Workshop on White Dwarfs ASP Conference Series, Vol. 372, proceedings of the conference held 7-11 August, 2006 in

Astronomy and Astrophysics

Astronomy

2

Scientific paper

Mass loss rates are predicted as a function of surface gravity for a stellar mass M* = 0.6 M&sun;, effective temperatures Teff = 50000 K and 60000 K and metallicities between solar and Z/Z&sun; = 0.01. In addition, it is checked in which cases the one component description of radiation driven winds may be justified. For central stars of planetary nebulae with log g ⪉ 4.7 the results predict mass loss rates in the range 10-10 M&sun; / yr ⪉ dot M ⪉ 10-7 M&sun; / yr where the dependence of dot M on the metallicity increases to larger gravities. For hydrogen-rich white dwarfs with log g ⪆ 7.0 and solar or subsolar metallicity no steady outflow of all elements can exist.

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