Corpus ID: 237605243

New simulations of accreting DA white dwarfs: infering accretion rates from the surface contamination

@inproceedings{Wachlin2021NewSO,
  title={New simulations of accreting DA white dwarfs: infering accretion rates from the surface contamination},
  author={Felipe C. Wachlin and G{\'e}rard Vauclair and Sylvie Vauclair and Leandro G. Althaus},
  year={2021}
}
Context. A non negligible fraction of white dwarf stars show the presence of heavy elements in their atmospheres. The most accepted explanation for this contamination is the accretion of material coming from tidally disrupted planetesimals, which form a debris disk around the star. Aims. We provide a grid of models for hydrogen rich white dwarfs accreting heavy material. We sweep a 3D parameter space involving different effective temperatures, envelope’s hydrogen content and accretion rates… Expand

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