CNO driven winds of hot first stars
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F09%3A00029216" target="_blank" >RIV/00216224:14310/09:00029216 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
CNO driven winds of hot first stars
Original language description
We show that hot first stars do not have any wind driven purely by hydrogen or helium. However, during the evolution of these stars the CNO elements may emerge on their surfaces due to the mixing processes. Contrary to hydrogen and helium, these elementsare able to drive a stellar wind. Consequently, evolved first stars may have winds driven purely by CNO elements. We study the properties of such stellar winds for different abundance of CNO elements and discuss their influence on the surrounding environment. We show that CNO driven winds exist in more luminuous stars. Moreover, for very hot stars CNO elements are too much ionized to drive a wind. In most cases the derived mass-loss rate is smaller than that calculated with solar mixture of elements. This is connected with the fact that in the present hot stars heavier elements (as iron) are the most important element that influence the wind mass-loss rate.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA205%2F07%2F0031" target="_blank" >GA205/07/0031: Stellar winds of first stars in the Universe</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Low-Metallicity Star Formation: From the First Stars to Dwarf Galaxies
ISBN
978-0-521-88986-5
ISSN
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e-ISSN
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Number of pages
1
Pages from-to
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Publisher name
Cambridge University Press
Place of publication
Cambridge, Velka Britanie
Event location
Rapallo, Italie
Event date
Jan 1, 2008
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000262601300027