Binary interaction along the RGB: The Barium Star perspective

Barium (Ba) stars form via mass-transfer in binary systems, and can subsequently interact with their white dwarf companion in a second stage of binary interaction. We used observations of main-sequence Ba systems as input for our evolutionary models, and try to reproduce the orbits of the Ba giants....

Full description

Saved in:
Bibliographic Details
Published in:Proceedings of the International Astronomical Union 2018-08, Vol.14 (S343), p.394-395
Main Authors: Escorza, A., Siess, L., Karinkuzhi, D., Boffin, H. M. J., Jorissen, A., van Winckel, H.
Format: Article
Language:English
Subjects:
Astronomy
Barium
Binary stars
Companion stars
Eccentric orbits
White dwarf stars
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Barium (Ba) stars form via mass-transfer in binary systems, and can subsequently interact with their white dwarf companion in a second stage of binary interaction. We used observations of main-sequence Ba systems as input for our evolutionary models, and try to reproduce the orbits of the Ba giants. We show that to explain short and sometimes eccentric orbits, additional interaction mechanisms are needed along the RGB.
ISSN:1743-9213
1743-9221
DOI:10.1017/S1743921318005896