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

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

2007-12-27

arxiv.org/abs/0712.4229v1

Astronomy and Astrophysics

Astrophysics

3 pages, conference

Scientific paper

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.

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