FIŠÁK, Jakub, Jiří KUBÁT and Jiří KRTIČKA. Rayleigh Scattering by Helium in Stellar Atmospheres. In A. Miroshnichenko, S. Zharikov, D. Korcakova, M. Wolf. B[e] Phenomenom: Forty Years of Studies. 508th ed. SAN FRANCISCO, USA: Astronomical Society of the Pacific. p. 115 - 120. ISBN 978-1-58381-900-5. 2017.
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Basic information
Original name Rayleigh Scattering by Helium in Stellar Atmospheres
Authors FIŠÁK, Jakub (203 Czech Republic, belonging to the institution), Jiří KUBÁT (203 Czech Republic) and Jiří KRTIČKA (203 Czech Republic, belonging to the institution).
Edition 508. vyd. SAN FRANCISCO, USA, B[e] Phenomenom: Forty Years of Studies, p. 115 - 120, 6 pp. 2017.
Publisher Astronomical Society of the Pacific
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 10308 Astronomy
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
Publication form printed version "print"
RIV identification code RIV/00216224:14310/17:00096231
Organization unit Faculty of Science
ISBN 978-1-58381-900-5
UT WoS 000401591600017
Keywords in English rayleigh scattering; helium; helium-rich stars
Tags NZ, rivok
Tags International impact
Changed by Changed by: Ing. Nicole Zrilić, učo 240776. Changed: 24/3/2018 15:18.
Abstract
We study the influence of Rayleigh scattering by helium on synthetic spectra and stellar atmosphere models. Rayleigh scattering by helium is often neglected in hot star atmosphere models. This approximation is justified by the small population of helium in stars with solar composition (about 10% by number) and lower Rayleigh scattering total cross section of helium with respect to neutral hydrogen. However, for stars with large helium abundances Rayleigh scattering by helium can be a significant opacity source.
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