Nuclear reaction rates and opacity in massive star evolution calculations
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F10%3A00481889" target="_blank" >RIV/67985815:_____/10:00481889 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/1742-6596/239/1/012004" target="_blank" >http://dx.doi.org/10.1088/1742-6596/239/1/012004</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1742-6596/239/1/012004" target="_blank" >10.1088/1742-6596/239/1/012004</a>
Alternative languages
Result language
angličtina
Original language name
Nuclear reaction rates and opacity in massive star evolution calculations
Original language description
Nuclear reaction rates and opacity are important parameters in stellar evolution. The input physics in a stellar evolution code determines the main theoretical characteristics of the stellar structure, evolution and nucleosynthesis of a star. For different input physics, in this work we calculate stellar evolution models of very massive first stars during the hydrogen and helium burning phases. We have considered 100 and 200 M-circle dot galactic and pregalactic stars with metallicity Z = 10(-6) and 10(9), respectively. The results show important differences from old to new formulations for the opacity and nuclear reaction rates, in particular the evolutionary tracks are significantly affected, that indicates the importance of using up to date and reliable input physics. The triple alpha reaction activates sooner for pregalactic than for galactic stars.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the 33rd Symposium on Nuclear Physics
ISBN
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ISSN
1742-6588
e-ISSN
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Number of pages
8
Pages from-to
"012004/1"-"012004/8"
Publisher name
Institute of Physics Publishing
Place of publication
Bristol
Event location
Morelos
Event date
Jan 5, 2010
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000287788100004