Spectral characteristics of fast rotating metal-poor massive stars

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F24%3A00640398" target="_blank" >RIV/67985815:_____/24:00640398 - isvavai.cz</a>
Result on the web
<a href="https://www.aob.rs/en/publishing-en/doi/conferences-papers-and-proceedings/769-2024-01-10-69646-aob104p099" target="_blank" >https://www.aob.rs/en/publishing-en/doi/conferences-papers-and-proceedings/769-2024-01-10-69646-aob104p099</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.69646/aob104p099" target="_blank" >10.69646/aob104p099</a>

Result language
angličtina
Original language name
Spectral characteristics of fast rotating metal-poor massive stars
Original language description
Low-metallicity massive stars are assumed to be progenitors of certain supernovae, gamma-ray bursts, and gravitational wave emitting mergers. These exotic phenomena contribute to their host galaxies through strong ionizing radiation and mechanical feedback. Here we investigate a certain type of very metal-poor (0.02 Z ) hot massive single stars that rotate fast and evolve chemically homogeneously. Combining state-of-the-art theories of stellar evolution and stellar atmospheres modelling we predict synthetic spectra of these stars corresponding to different masses and evolutionary phases. The predicted spectra in early evolutionary phases is classified mainly as an early-O type giant or supergiant while in later evolutionary phases most of our model spectra are assigned to the WO-type spectral class. The Hubble Space Telescope’s (HST) Ultraviolet Legacy Library of Young Stars as Essential Standards (ULLYSES) program will enable us to compare our predicted spectra with observations of stars of similar nature (e.g., metal-poor stars in Sextant A).
Czech name
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Czech description
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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

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of XX Serbian Astronomical Conference
ISBN
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ISSN
0373-3742
e-ISSN
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Number of pages
6
Pages from-to
99-104
Publisher name
Astronomical Observatory of Belgrade
Place of publication
Bělehrad
Event location
Bělehrad
Event date
Oct 16, 2023
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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