publication . Article . Other literature type . Preprint . 2007

White dwarf stars with carbon atmospheres

Dufour, P.; Liebert, James; Fontaine, G.; Behara, N.;
Open Access
  • Published: 01 Nov 2007 Journal: Nature, volume 450, pages 522-524 (issn: 0028-0836, eissn: 1476-4687, Copyright policy)
  • Publisher: Springer Science and Business Media LLC
Abstract
White dwarfs represent the endpoint of stellar evolution for stars with initial masses between approximately 0.07 msun and 8-10 msun, where msun is the mass of the Sun (more massive stars end their life as either black holes or neutron stars). The theory of stellar evolution predicts that the majority of white dwarfs have a core made of carbon and oxygen, which itself is surrounded by a helium layer and, for ~80 per cent of known white dwarfs, by an additional hydrogen layer. All white dwarfs therefore have been traditionally found to belong to one of two categories: those with a hydrogen-rich atmosphere (the DA spectral type) and those with a helium-rich atmosp...
Subjects
arXiv: Astrophysics::Solar and Stellar AstrophysicsAstrophysics::Earth and Planetary AstrophysicsAstrophysics::Galaxy AstrophysicsAstrophysics::Cosmology and Extragalactic Astrophysics
free text keywords: Brown dwarf, Stellar classification, Physics, Astrophysics, Main sequence, Helium flash, Black dwarf, Astronomy, White dwarf, Asymptotic giant branch, Stellar evolution
Funded by
NSERC
Project
  • Funder: Natural Sciences and Engineering Research Council of Canada (NSERC)
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publication . Article . Other literature type . Preprint . 2007

White dwarf stars with carbon atmospheres

Dufour, P.; Liebert, James; Fontaine, G.; Behara, N.;