| MIKULÁŠEK, Zdeněk, Juraj ZVERKO, Jozef ŽIŽNOVSKÝ, Jiří KRTIČKA, Ilian Kh. ILIEV, Dmitrij O. KUDRYAVTSEV, Tomáš GRÁF and Miloslav ZEJDA. HD 143 418 - an Interacting Binary with a Sub-Synchronously Rotating Primary. In A. Prša, M. Zejda. ASP Conference Series 435 - Binaries - Key to Comprehension to the Universe. San Francisco, USA: Astronomical Society of the Pacific, 2010, p. 319-322. ISBN 978-1-58381-750-6. |
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@inproceedings{922860,
author = {Mikulášek, Zdeněk and Zverko, Juraj and Žižnovský, Jozef and Krtička, Jiří and Iliev, Ilian Kh. and Kudryavtsev, Dmitrij O. and Gráf, Tomáš and Zejda, Miloslav},
address = {San Francisco, USA},
booktitle = {ASP Conference Series 435 - Binaries - Key to Comprehension to the Universe},
editor = {A. Prša, M. Zejda},
keywords = {interacting binary; principal component analysis; chemical peculiar stars},
howpublished = {tištěná verze "print"},
language = {eng},
location = {San Francisco, USA},
isbn = {978-1-58381-750-6},
pages = {319-322},
publisher = {Astronomical Society of the Pacific},
title = {HD 143 418 - an Interacting Binary with a Sub-Synchronously Rotating Primary},
year = {2010}
}
TY - JOUR
ID - 922860
AU - Mikulášek, Zdeněk - Zverko, Juraj - Žižnovský, Jozef - Krtička, Jiří - Iliev, Ilian Kh. - Kudryavtsev, Dmitrij O. - Gráf, Tomáš - Zejda, Miloslav
PY - 2010
TI - HD 143 418 - an Interacting Binary with a Sub-Synchronously Rotating Primary
PB - Astronomical Society of the Pacific
CY - San Francisco, USA
SN - 9781583817506
KW - interacting binary
KW - principal component analysis
KW - chemical peculiar stars
N2 - HD143418 is a non-eclipsing double-lined close binary with orbital period Porb = 2.282520 d. The photometrically and spectroscopically dominant primary component is a normal A5V star in the middle of its stay on the main sequence with extremely slow, subsynchronous rotation (P_rot being about 14 days!). Its photometric monitoring since 1982 revealed orbitally modulated variations with changing form and amplitude. The advanced principal component analysis (APCA) disentangling extracted a steady part of light curves obviously caused by the ellipticity of the primary. Seasonal components of the light curves may be related to an expected incidence of circumstellar matter ejected from the tidally spinning up primary component. A possible scenario of the synchronisation process is also briefly discussed.
ER -
MIKULÁŠEK, Zdeněk, Juraj ZVERKO, Jozef ŽIŽNOVSKÝ, Jiří KRTIČKA, Ilian Kh. ILIEV, Dmitrij O. KUDRYAVTSEV, Tomáš GRÁF and Miloslav ZEJDA. HD 143 418 - an Interacting Binary with a Sub-Synchronously Rotating Primary. In A. Prša, M. Zejda. \textit{ASP Conference Series 435 - Binaries - Key to Comprehension to the Universe}. San Francisco, USA: Astronomical Society of the Pacific, 2010, p.~319-322. ISBN~978-1-58381-750-6.
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