Carbon Deficiency in Externally-Polluted White Dwarfs: Evidence for Accretion of Asteroids

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dc.creatorJura, M.
dc.date2006-09-01
dc.date.accessioned2026-07-07T10:39:58Z
dc.date.available2026-07-07T10:39:58Z
dc.descriptionExisting determinations show that n(C)/n(Fe) is more than a factor of 10 below solar in the atmospheres of three white dwarfs that appear to be externally-polluted. These results are not easily explained if the stars have accreted interstellar matter, and we re-interpret these measurements as evidence that these stars have accreted asteroids of a chrondritic composition.
dc.description23 pages, 6 figures, accepted for ApJ
dc.identifierhttps://arxiv.org/abs/astro-ph/0609045
dc.identifierhttp://arxiv.org/abs/astro-ph/0609045
dc.identifierAstrophys.J.653:613-620,2006
dc.identifierdoi:10.1086/508738
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/181215
dc.subjectAstrophysics
dc.titleCarbon Deficiency in Externally-Polluted White Dwarfs: Evidence for Accretion of Asteroids
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