Hydrogen in hot subdwarfs formed by double helium white dwarf mergers

Preprint English OPEN
Hall, Philip D.; Jeffery, C. Simon;
  • Related identifiers: doi: 10.1093/mnras/stw2188
  • Subject: Astrophysics - Solar and Stellar Astrophysics
    arxiv: Astrophysics::Galaxy Astrophysics | Physics::Atomic Physics | Astrophysics::Cosmology and Extragalactic Astrophysics | Astrophysics::Earth and Planetary Astrophysics | Astrophysics::Solar and Stellar Astrophysics

Isolated hot subdwarfs might be formed by the merging of two helium-core white dwarfs. Before merging, helium-core white dwarfs have hydrogen-rich envelopes and some of this hydrogen may survive the merger. We calculate the mass of hydrogen that is present at the start ... View more
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