The Role of Electron Scattering in Probing the Wind from the Hot Star in Symbiotic Binaries
Abstract
We modeled the broad wings of the OVI 1032,1038Å resonance lines and HeII 1640Å line in the spectra of some symbiotic stars by the electron-scattering process. We determined an empirical relationship between the emission measure of the symbiotic nebula and the electron optical depth. This allowed us to determine a contribution from the electron-scattering also to emission lines, which originate in a more extended, low density part of the nebula. For example, subtracting the electron-scattering contribution from the Hα line profile makes it possible to determine more precisely the mass loss rate via the wind from the hot star in symbiotic binaries.
- Publication:
-
From Interacting Binaries to Exoplanets: Essential Modeling Tools
- Pub Date:
- April 2012
- DOI:
- 10.1017/S1743921311027682
- Bibcode:
- 2012IAUS..282..315S
- Keywords:
-
- binaries: symbiotic;
- scattering;
- line: profiles