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arXiv 1012.0775astro-ph.SRastro-ph.EP
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EXOTIME的目标是HS0702 +6043和HS0444 +0458

The EXOTIME targets HS0702+6043 and HS0444+0458

Ronny Lutz, Sonja Schuh, Roberto Silvotti

摘要:

亚矮星B(sdB)星的脉动是制约这些演化天体演化状态的重要工具。有趣的是,用于这种星震学方法的相同数据也可以用于通过所谓的O-C图分析脉动的时间来搜索这些物体周围的亚恒星同伴。sdB恒星周围的亚恒星物体之所以重要,有两个不同的原因:它们被怀疑能够影响其宿主恒星的演化,并且它们是检查在其宿主恒星红巨星膨胀中幸存下来的系外行星性质的理想测试案例。

英文摘要:

Pulsations in subdwarf B (sdB) stars are an important tool to constrain the evolutionary status of these evolved objects. Interestingly, the same data used for this asteroseismological approach can also be used to search for substellar companions around these objects by analyzing the timing of the pulsations by means of a so-called O-C diagram. Substellar objects around sdB stars are important for two different reasons: they are suspected to be able to influence the evolution of their host-star and they are an ideal test case to examine the properties of exoplanets which have survived the red giant expansion of their host stars.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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