Comparing Circular and Eccentric Roche Lobe Models using the Binary Population Synthesis Code StarTrack
Abstract
It is commonly assumed that eccentric roche lobe overflow happens instantaneously and therefore not over an appreciable timescale when compared with other evolutionary effects. Sepinsky et al. (2007) developed a more complete mathematical model for the roche lobe in eccentric systems and the roche lobe overflow process. Here we include these changes in the population synthesis code Star Track to examine the long term effects on various types of systems. We first examine the timescale for eccentric roche lobe overflow as compared to the other important evolutionary timescales. We then compare the evolution of systems using the eccentric roche lobe overflow calculations to the commonly adopted ones.
- Publication:
-
American Astronomical Society Meeting Abstracts #221
- Pub Date:
- January 2013
- Bibcode:
- 2013AAS...22114223C