Populations of rotating stars II. Rapid rotators and their link to Be-type stars
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F13%3A00067018" target="_blank" >RIV/00216224:14310/13:00067018 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1051/0004-6361/201220559" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201220559</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/201220559" target="_blank" >10.1051/0004-6361/201220559</a>
Alternative languages
Result language
angličtina
Original language name
Populations of rotating stars II. Rapid rotators and their link to Be-type stars
Original language description
Context. Even though it is broadly accepted that single Be stars are rapidly rotating stars surrounded by a flat rotating circumstellar disk, there is still a debate about how fast these stars rotate and also about the mechanisms involved in the angular-momentum and mass input in the disk. Aims. We study the properties of stars that rotate near their critical-rotation rate and investigate the properties of the disks formed by equatorial mass ejections. Methods. We used the most recent Geneva stellar evolutionary tracks for rapidly rotating stars that reach the critical limit and used a simple model for the disk structure. Results. We obtain that for a 9 M-circle dot star at solar metallicity, the minimum average velocity during the main-sequence (MS) phase to reach the critical velocity is around 330 km s(-1), whereas it would be 390 km s(-1) at the metallicity of the Small Magellanic Cloud (SMC).
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA205%2F08%2F0003" target="_blank" >GA205/08/0003: Mass-loss rate predictions for hot stars</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2013
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
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Volume of the periodical
553
Issue of the periodical within the volume
květen
Country of publishing house
FR - FRANCE
Number of pages
14
Pages from-to
"A25"-"1"-"A25"-"14"
UT code for WoS article
000319858700025
EID of the result in the Scopus database
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