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періодичних видань НАН України
Impact of the stellar oblation effect on estimation of the magnetic dipole strength
Репозиторій DSpace/Manakin
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Impact of the stellar oblation effect on estimation of the magnetic dipole strength
Тема:
MS3: Physics of Stars and Galaxies
Посилання:
Impact of the stellar oblation effect on estimation of the magnetic dipole strength / V. Khalack // Кинематика и физика небесных тел. — 2005. — Т. 21, № 5-додаток. — С. 299-302. — Бібліогр.: 8 назв. — англ.
Підтримка:
I am kindly grateful to Dr. J. Zverko and Dr. J. Ziznovsky for their useful comments. I would also like to express my gratitude to the Local Organizing Committee of MAO–2004 for the partial financial support.
Дата:
2005
Переглядів:
712
Завантажень:
427
Анотація:
The surface magnetic field structure of an ellipsoidal star is modelled in the frame of the magnetic charge description (MCD) approach. It is shown that the stellar oblation effect can lead to the essential overestimation of the magnetic dipole strength value obtained from the mean crossover effect (up to 12%) and quadratic magnetic field (up to 8%) in comparison with its theoretical value obtained for the case of the spherically symmetric star. Taking into account the gravity-darkening phenomenon is argued that this overestimation increases with the growth of the effective gravity difference at the equator and poles of the star. The data of the mean longitudinal magnetic field provide the most correct estimation of the magnetic dipole strength value in the ellipsoidal star.
