We consider initial stage of the evolution of AM CVn type stars with white dwarf donors, which is accompanied by thermonuclear explosions in the layer of accreted He. It is shown that the accretion never results in detonation of He and accretors in AM CVn stars finish their evolution as massive WDs. We found, for the first time, that in the outbursts the synthesis of n-rich isotopes, initiated by the 22Ne(α,n)25Mg reaction becomes possible.
@article{arxiv.1904.07662,
title = {Thermonuclear oubursts of AM CVn stars},
author = {L. R. Yungelson and L. Piersanti and A. Tornambé and S. Cristalo},
journal= {arXiv preprint arXiv:1904.07662},
year = {2019}
}
Comments
6 pages, 4 figures, English translation of the paper to be published in Russian only in INASAN Science Proceedings