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arXiv 2106.02010astro-ph.SR
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五颗Am星的光度和光谱分析

Photometric and Spectroscopic Analysis of Five Am Stars

Gireesh C. Joshi

摘要:

对样本Am星进行光度分析,以确定恒星特征和约束恒星动力学。对所研究的Am星的光谱分析证实了它们具有Am星的一般特征。HD 113878和HD 118660的元素丰度数据在不同的观测时期表现出不同的特征。恒星的基本参数(质量、光度、半径、寿命、距离、自行等)也决心确定类地系外行星的恒星栖息地。这些信息对于在不久的将来确定适合人类居住的行星非常重要。在这方面,潮汐半径和每颗恒星的宜居带的边界已经计算出来,以支持在它们周围寻找外星生命。星震质量尺度测试表明,恒星质量比太阳质量更大。

英文摘要:

The photometric analysis of sample Am stars is carried out to determine the stellar characteristics and to constrain the stellar dynamics. The spectroscopic analysis of the studied Am stars confirms their general characteristics of Am stars. The available data on elemental abundances for HD 113878 and HD 118660 have shown different characteristics during different epochs of observations. The basic stellar parameters (mass, luminosity, radius, life time, distance, proper-motion, etc.) are also determined to identify the stellar habitat zones for earth like exoplanet. Such information is important to identify suitable planets for human settlement in the near future. In this connection, the tidal radius and boundaries of the habitable zone of each star have been computed to support the search of an extra-terrestrial life around them. Asteroseismic mass scale test shows greater stellar masses comparable to the solar mass.

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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