MIKULÁŠEK, Zdeněk, Jiří KRTIČKA, Jan JANÍK, G. W. HENRY, Miloslav ZEJDA, M. SHULTZ, Ernst PAUNZEN and Miroslav JAGELKA. On the Nature of Rotation Period Variability of Magnetic Stars. Online. In Balega, YY; Kudryavtsev, DO; Romanyuk, II; Yakunin, IA. STARS: FROM COLLAPSE TO COLLAPSE. 510th ed. SAN FRANCISCO: ASTRONOMICAL SOC PACIFIC, 2017. p. 220-223. ISBN 978-1-58381-904-3. [citováno 2024-04-23]
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Basic information
Original name On the Nature of Rotation Period Variability of Magnetic Stars
Name in Czech On the Nature of Rotation Period Variability of Magnetic Stars
Authors MIKULÁŠEK, Zdeněk (203 Czech Republic, guarantor, belonging to the institution), Jiří KRTIČKA (203 Czech Republic, belonging to the institution), Jan JANÍK (203 Czech Republic, belonging to the institution), G. W. HENRY (840 United States of America), Miloslav ZEJDA (203 Czech Republic, belonging to the institution), M. SHULTZ (752 Sweden), Ernst PAUNZEN (40 Austria, belonging to the institution) and Miroslav JAGELKA (703 Slovakia, belonging to the institution)
Edition 510. vyd. SAN FRANCISCO, STARS: FROM COLLAPSE TO COLLAPSE, p. 220-223, 4 pp. 2017.
Publisher ASTRONOMICAL SOC 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/00216224:14310/17:00095228
Organization unit Faculty of Science
ISBN 978-1-58381-904-3
UT WoS 000411770200054
Keywords (in Czech) CU VIRGINIS; BRAKING
Keywords in English CU VIRGINIS; BRAKING
Tags NZ, rivok
Tags International impact
Changed by Changed by: Ing. Nicole Zrilić, učo 240776. Changed: 22/3/2018 18:22.
Abstract
The magnetic chemically peculiar (mCP) stars of the upper main sequence exhibit periodic light, magnetic, radio, and spectroscopic variations that can be adequately explained by a model of a rigidly rotating magnetized star with persistent surface structures. The majority of mCP stars rotate at strictly constant periods. However, there are a few mCP stars whose rotation periods vary on timescales of decades while the shape of their phase curves remains unchanged. In the case of CU Vir and V901 Ori, we have detected cyclic period variations. We demonstrate that the period oscillations of CU Vir may be a consequence of the interaction of the internal magnetic field and differential rotation.
Abstract (in Czech)
The magnetic chemically peculiar (mCP) stars of the upper main sequence exhibit periodic light, magnetic, radio, and spectroscopic variations that can be adequately explained by a model of a rigidly rotating magnetized star with persistent surface structures. The majority of mCP stars rotate at strictly constant periods. However, there are a few mCP stars whose rotation periods vary on timescales of decades while the shape of their phase curves remains unchanged. In the case of CU Vir and V901 Ori, we have detected cyclic period variations. We demonstrate that the period oscillations of CU Vir may be a consequence of the interaction of the internal magnetic field and differential rotation.
Links
GA16-01116S, research and development projectName: Atmosféry a okolohvězdné prostředí magnetických horkých hvězd
Investor: Czech Science Foundation
PrintDisplayed: 23/4/2024 16:13