arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1303.3028astro-ph.SR
收藏

恒星多重性

Stellar Multiplicity

Gaspard Duchêne, Adam Kraus

摘要:

恒星多样性是恒星形成过程的普遍结果。因此,描述多个系统的频率和主要特征及其对主要质量和环境的依赖性是探测这一过程的有力工具。虽然早期的尝试充满了选择偏差和有限的完整性,但过去二十年的仪器突破现在使强大的分析成为可能。在这篇综述中,我们总结了我们目前的经验知识的恒星多样性的主序星和棕矮星,以及人口之间的前主序星和嵌入的原恒星。明确的趋势作为一个功能的主要质量和恒星的演化阶段确定,将作为比较的基础上,恒星形成的数值和分析模型。

英文摘要:

Stellar multiplicity is an ubiquitous outcome of the star formation process. Characterizing the frequency and main characteristics of multiple systems and their dependencies on primary mass and environment is therefore a powerful tool to probe this process. While early attempts were fraught with selection biases and limited completeness, instrumentation breakthroughs in the last two decades now enable robust analyses. In this review, we summarize our current empirical knowledge of stellar multiplicity for Main Sequence stars and brown dwarfs, as well as among populations of Pre-Main Sequence stars and embedded protostars. Clear trends as a function of both primary mass and stellar evolutionary stage are identified that will serve as a comparison basis for numerical and analytical models of star formation.

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。

↑