An unusual white dwarf star may be a surviving remnant of a subluminous Type Ia supernova
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F17%3A00481069" target="_blank" >RIV/67985815:_____/17:00481069 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1126/science.aam8378" target="_blank" >http://dx.doi.org/10.1126/science.aam8378</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1126/science.aam8378" target="_blank" >10.1126/science.aam8378</a>
Alternative languages
Result language
angličtina
Original language name
An unusual white dwarf star may be a surviving remnant of a subluminous Type Ia supernova
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
<a href="/en/project/GA15-15943S" target="_blank" >GA15-15943S: Modelling and evolution of magnetic fields in hydrogen-rich and polluted white dwarfs</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Science
ISSN
0036-8075
e-ISSN
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Volume of the periodical
357
Issue of the periodical within the volume
6352
Country of publishing house
US - UNITED STATES
Number of pages
4
Pages from-to
680-683
UT code for WoS article
000407793600033
EID of the result in the Scopus database
2-s2.0-85027890336