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arXiv 0911.0795astro-ph.GAastro-ph.SR
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星团中的双星和场恒星星族的起源

Binaries in star clusters and the origin of the field stellar population

Simon P. Goodwin

摘要:

许多,可能是大多数,恒星形成于双星系统和更高阶的多重系统中。因此,双星系统的性质和频率为恒星形成过程提供了强有力的线索,并限制了恒星形成模型。然而,大多数恒星也在星团中形成,其中诞生双星的性质和频率可以通过动力学处理迅速改变。因此,我们几乎看不到出生人口,这使得很难知道恒星形成(至少通过双星追踪)是否是普遍的,或者它是否取决于环境。此外,外地人口由来自不同集群的系统组成,这些系统都以不同的方式处理。

英文摘要:

Many, possibly most, stars form in binary and higher-order multiple systems. Therefore, the properties and frequency of binary systems provide strong clues to the star-formation process, and constraints on star-formation models. However, the majority of stars also form in star clusters in which the birth binary properties and frequency can be altered rapidly by dynamical processing. Thus, we almost never see the birth population, which makes it very difficult to know if star formation (as traced by binaries, at least) is universal, or if it depends on environment. In addition, the field population consists of a mixture of systems from different clusters which have all been processed in different ways.

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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