## Wind-driven evolution of accreting binaries and the progenitors of SNe Ia
^{1} Universitäts-Sternwarte Göttingen,
Geismarlandstrasse 11, D-37083 Göttingen, Germany^{2} Astronomy Group, University of Leicester, Leicester LE1
7RH, UK
Strong self-excited winds from the companion are very likely in
many accreting binaries, and we investigate their evolutionary
effects. We show that in white dwarf systems with large mass ratios
, self-excited winds naturally stabilize mass
transfer at a threshold value
yr We show that the stability of such `bootstrap' evolution via a self-excited wind is indeterminate if the wind losses depend linearly on the mass transfer rate, as assumed in some analyses of low-mass X-ray binary evolution. Such analyses must be repeated with a more precise form of the wind-driving law. In practice systems with small mass ratios will tend to stabilize in regimes where the wind-driving law is slower than linear, with the opposite result for large mass ratios.
## Contents- 1. Introduction
- 2. Stability of wind-driven mass transfer
- 3. Stable solutions for accreting white dwarfs
- 4. Stable mass transfer for large mass ratios
- 5. Conclusions
- Acknowledgements
- References
© European Southern Observatory (ESO) 1998 Online publication: September 17, 1998 |