KRTIČKA, Jiří. Hot-star wind models with magnetically split line blanketing. ASTRONOMY & ASTROPHYSICS. LES ULIS CEDEX A: EDP SCIENCES S A, 2018, vol. 620, podzim, p. "A176-1"-"A176-4", 4 pp. ISSN 1432-0746. Available from: https://dx.doi.org/10.1051/0004-6361/201834097.
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Basic information
Original name Hot-star wind models with magnetically split line blanketing
Name in Czech Modely hvězdných větrů horkých hvězd s magnetickým rozštěpením čar
Authors KRTIČKA, Jiří (203 Czech Republic, guarantor, belonging to the institution).
Edition ASTRONOMY & ASTROPHYSICS, LES ULIS CEDEX A, EDP SCIENCES S A, 2018, 1432-0746.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Country of publisher France
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 6.209
RIV identification code RIV/00216224:14310/18:00101469
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1051/0004-6361/201834097
UT WoS 000453301200008
Keywords in English stars: winds outflows; stars: mass-loss; stars: early-type; stars: magnetic field; hydrodynamics; radiative transfer
Tags International impact, Reviewed
Changed by Changed by: prof. Mgr. Jiří Krtička, Ph.D., učo 8714. Changed: 2/1/2019 01:01.
Abstract
Fraction of hot stars posses strong magnetic fields that channel their radiatively driven outflows. We study the influence of line splitting in the magnetic field (Zeeman effect) on the wind properties. We use our own global wind code with radiative transfer in the comoving frame to understand the influence of the Zeeman splitting on the line force. We show that the Zeeman splitting has a negligible influence on the line force for magnetic fields that are weaker than about 100 kG. This means that the wind mass-loss rates and terminal velocities are not affected by the magnetic line splitting for magnetic fields as are typically found on the surface of nondegenerate stars. Neither have we found any strong flux variability that would be due to the magnetically split line blanketing.
Abstract (in Czech)
Ukazujeme, že magnetické rozštěpení čar nemá velký vliv na rychlost ztráty hmoty horkých hvězd.
Links
GA16-01116S, research and development projectName: Atmosféry a okolohvězdné prostředí magnetických horkých hvězd
Investor: Czech Science Foundation
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