Mode Identification of Three Pulsating Subdwarf B Stars via Multiplets and Period Spacing

被引：0

作者：

Baran, A. S. ^{[1
,2
]}

Winans, A. ^{[2
]}

机构：

[1] Pedag Univ, Mt Suhora Observ, PL-30084 Krakow, Poland

[2] Missouri State Univ, Dept Phys Astron & Mat Sci, Springfield, MO 65897 USA

来源：

ACTA ASTRONOMICA | 2012年 / 62卷 / 04期

关键词：

subdwarfs; Stars: oscillations (including pulsations): Asteroseismology; OSCILLATIONS; BINARIES;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present an analysis of three pulsating subdwarf B stars residing in short period binaries discovered by the Kepler spacecraft. We followed the analysis presented in Baran. Most of the peaks we detected were assigned to mode degrees and, in the case of the multiplet components, the azimuthal numbers. We confirmed the spin rates for all three stars to be tens of days rather than hours as the binary frequencies may suggest. Using the average period spacings of each object we produced an echelle diagram which shows a common feature at a period of nearly 5000 s. The period spacing between consecutive overtones is quite regular, which confirms that the mode trapping is not significant as previously predicted by the models.

引用

页码：343 / 355

页数：13

共 12 条

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