An Eclipsing "Blue Straggler" V228 from 47 Tuc: Evolutionary Consideration

Marek J. Sarna

An Eclipsing "Blue Straggler" V228 from 47 Tuc: Evolutionary Consideration

Astrophysics 2007-12-28 v1

Authors: Marek J. Sarna

Abstract

We perform evolutionary calculations of binary stars to find progenitors of system with parameters similar to the eclipsing binary system V228. We show that a V228 binary system may be formed starting with an initial binary system which has a low main sequence star as an accretor. We also show that the best fitting model implies loss of about 50 per cent of initial total orbital momentum but only 5 per cent of initial total mass.

Keywords

eclipsing binary stars

Cite

@article{arxiv.0712.4229,
  title  = {An Eclipsing "Blue Straggler" V228 from 47 Tuc: Evolutionary Consideration},
  author = {Marek J. Sarna},
  journal= {arXiv preprint arXiv:0712.4229},
  year   = {2007}
}