University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Post-AGB Discs from Common-Envelope Evolution

Izzard, Robert and Jermyn, Adam (2018) Post-AGB Discs from Common-Envelope Evolution Galaxies, 6 (3).

Full text not available from this repository.

Abstract

Post-asymptotic giant branch (post-AGB) stars with discs are all binaries. Many of these binaries have orbital periods between 100 and 1000 days so cannot have avoided mass transfer between the AGB star and its companion, likely through a common-envelope type interaction. We report on preliminary results of our project to model circumbinary discs around post-AGB stars using our binary population synthesis code binary_c. We combine a simple analytic thin-disc model with binary stellar evolution to estimate the impact of the disc on the binary, and vice versa, fast enough that we can model stellar population and hence explore the rather uncertain parameter space involved with disc formation. We find that, provided the discs form with sufficient mass and angular momentum, and have an inner edge that is relatively close to the binary, they can both prolong the life of their parent post-AGB star and pump the eccentricity of orbits of their inner binaries

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
NameEmailORCID
Izzard, Robertr.izzard@surrey.ac.uk
Jermyn, Adam
Date : 11 September 2018
DOI : 10.3390/galaxies6030097
Depositing User : Karen Garland
Date Deposited : 04 Oct 2018 13:02
Last Modified : 06 Jul 2019 05:26
URI: http://epubs.surrey.ac.uk/id/eprint/849551

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800