Hot subdwarf wind models with accurate abundances: II. Helium-dominated merger products CD-46 8926 and CD-51 11879
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F24%3A00585242" target="_blank" >RIV/67985815:_____/24:00585242 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14310/24:00135876
Result on the web
<a href="https://hdl.handle.net/11104/0353272" target="_blank" >https://hdl.handle.net/11104/0353272</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/202347978" target="_blank" >10.1051/0004-6361/202347978</a>
Alternative languages
Result language
angličtina
Original language name
Hot subdwarf wind models with accurate abundances: II. Helium-dominated merger products CD-46 8926 and CD-51 11879
Original language description
We aim to understand the influence of modified surface abundances on the strength of the stellar wind in the helium-dominated subdwarfs CD-46 8926 and CD-51 11879. A modified wind strength could resolve the problem with the X-ray emission of these stars, as the expected X-ray luminosity of both stars is significantly higher than the upper limit determined from observations. We used our own optical spectroscopy combined with archival ultraviolet spectroscopy and photometry to derive basic parameters and surface abundances of selected subdwarfs. The resulting parameterst served as input for the METUJE stellar wind code, which predicts the wind structure of these stars. We compared the derived wind parameters with the predictions derived for solar abundances.
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
—
OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
<a href="/en/project/GA22-34467S" target="_blank" >GA22-34467S: Binary interaction on the red giant branch: Hot subdwarfs as a test case.</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astronomy & Astrophysics
ISSN
0004-6361
e-ISSN
1432-0746
Volume of the periodical
683
Issue of the periodical within the volume
March
Country of publishing house
FR - FRANCE
Number of pages
10
Pages from-to
A80
UT code for WoS article
001181364400009
EID of the result in the Scopus database
2-s2.0-85187234163