Solar-like Oscillations in Semiregular Variables

被引：0
|
作者：
Timothy R. Bedding
机构：
[1] University of Sydney,School of Physics
来源：
Astrophysics and Space Science | 2003年 / 284卷
关键词：
stars: AGB and post-AGB; stars: oscillations;
D O I：
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学科分类号：
摘要：
Power spectra of the light curves of semiregular variables, based on visualmagnitude estimates spanning many decades, show clear evidence forstochastic excitation. This supports the suggestion byChristensen-Dalsgaard et al. (2001) that oscillations in these stars aresolar-like, i.e., stochastically excited by convection, with mode lifetimesranging from years to decades.
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页码：61 / 64
页数：3
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