接触二元AB和周期行为的最新结果

Q4 Physics and Astronomy

Astronomical and Astrophysical Transactions Pub Date : 2007-09-05 DOI:10.1080/10556790701323035

H. Rovithis-Livaniou, S. Tsantilas, A. Kalimeris, P. Rovithis, I. Voloshina

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引用次数: 0

摘要

利用已有的数据，重新分析了接触食双星AB和的O−C图。由此发现，由P(E)−P E函数表示的真实周期变化发生了变化;P模及其幅值继续减小。此外，假设观测到的AB和轨道周期变化仅由磁活动引起，计算了磁场的变化和P模。由于发现它们的可变性小于其他检查病例，这与AB和的O−C图形状有关。

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Latest results on the period behaviour of the contact binary AB And

The O−C diagram of the contact eclipsing binary AB And was reanalysed, using data obtained up to now. It was thus found that the real period variations, presented by the P(E)−P e function, have changed; both P mod and its amplitude continue to decrease. Moreover, assuming that the observed orbital period changes of AB And are due only to magnetic activity, the variation in the magnetic field and also P mod were calculated. As their variability was found to be less than that of other examined cases, this is connected to the O−C diagram shape of AB And.

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来源期刊

Astronomical and Astrophysical Transactions Physics and Astronomy-Instrumentation

CiteScore

0.40

自引率

0.00%

发文量

期刊介绍： Astronomical and Astrophysical Transactions (AApTr) journal is being published jointly by the Euro-Asian Astronomical Society and Cambridge Scientific Publishers, The journal provides a forum for the rapid publication of material from all modern and classical fields of astronomy and astrophysics, as well as material concerned with astronomical instrumentation and related fundamental sciences. It includes both theoretical and experimental original research papers, short communications, review papers and conference reports.