Are RRab stars fully radial?

被引：4

作者：

Benko, Jozsef M. ^{[1
]}

Szabo, Robert ^{[1
]}

机构：

[1] Konkoly Observ Budapest, MTA CSFK, Konkoly Thege M U 15-17, H-1121 Budapest, Hungary

来源：

PRECISION ASTEROSEISMOLOGY | 2014年 / 9卷 / 301期

关键词：

stars: oscillations; stars: horizontal-branch; stars: variables: other;

D O I：

10.1017/S174392131301466X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Thanks to the space missions CoRoT and Kepler new oscillation frequencies have been discovered in the Fourier spectra of Blazhko RR Lyrae stars. The period doubling (PD) yields half-integer frequencies between the fundamental mode and its harmonics. In many cases the first and/or second radial overtone frequencies also appear temporally. Some stars show extra frequencies that were identified as potential non-radial modes. We show here that all these frequencies can be explained by pure radial pulsation as linear combinations of the frequencies of radial fundamental and overtone modes.

引用

页码：383 / 384

页数：2

共 6 条

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