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dc.contributor.authorVennes, S.
dc.contributor.authorNemeth, P.
dc.contributor.authorKawka, Adela
dc.contributor.authorThorstensen, J.
dc.contributor.authorKhalack, V.
dc.contributor.authorFerrario, L.
dc.contributor.authorAlper, E.
dc.date.accessioned2018-12-13T09:11:08Z
dc.date.available2018-12-13T09:11:08Z
dc.date.created2018-12-12T02:46:40Z
dc.date.issued2017
dc.identifier.citationVennes, S. and Nemeth, P. and Kawka, A. and Thorstensen, J. and Khalack, V. and Ferrario, L. and Alper, E. 2017. An unusual white dwarf star may be a surviving remnant of a subluminous Type Ia supernova. Science. 357 (6352): pp. 680-683.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/71744
dc.identifier.doi10.1126/science.aam8378
dc.description.abstract

Subluminous Type Ia supernovae, such as the Type Iax–class prototype SN 2002cx, are described by a variety of models such as the failed detonation and partial deflagration of an accreting carbon-oxygen white dwarf star or the explosion of an accreting, hybrid carbon-oxygen-neon core. These models predict that bound remnants survive such events with, according to some simulations, a high kick velocity. We report the discovery of a high proper motion, low-mass white dwarf (LP 40-365) that travels at a velocity greater than the Galactic escape velocity and whose peculiar atmosphere is dominated by intermediate-mass elements. Strong evidence indicates that this partially burnt remnant was ejected following a subluminous Type Ia supernova event. This supports the viability of single-degenerate supernova progenitors.

dc.publisherThe American Association for the Advancement of Science
dc.titleAn unusual white dwarf star may be a surviving remnant of a subluminous Type Ia supernova
dc.typeJournal Article
dcterms.source.volume357
dcterms.source.number6352
dcterms.source.startPage680
dcterms.source.endPage683
dcterms.source.issn0036-8075
dcterms.source.titleScience
curtin.note

This is the author's version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science Vol. 357 (2017), 10.1126/science.aam8378

curtin.departmentCurtin Institute of Radio Astronomy (Physics)
curtin.accessStatusOpen access


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