Comparison of Gaia and asteroseismic distances
Comparison of Gaia and asteroseismic distances
复制标题
DOI：
10.1093/mnrasl/slx071
复制
发表时间：
2017-05
影响因子：
4.8
通讯作者：
M. Yıldız;Z. Ç. Orhan;S. Ortel;M. Roth
中科院分区：
文献类型：
--
作者：
M. Yıldız;Z. Ç. Orhan;S. Ortel;M. Roth
星震学利用所谓的尺度关系提供了类太阳振荡恒星的基本特性（质量、半径和有效温度）。这些特性使得计算恒星的星震距离成为可能。我们将Y{\i}ld{\i}z等人研究的74颗恒星的星震距离与最近公布的盖亚距离进行了比较。这两个距离非常吻合；对于其中的64颗恒星，差异小于10%。然而，如果我们使用光谱方法获得的有效温度，就会看到系统的差异；盖亚距离大约比星震距离大5%。
Asteroseismology provides fundamental properties (mass, radius and effective temperature) of solar-like oscillating stars using so-called scaling relations. These properties allow the computation of the asteroseismic distance of stars. We compare the asteroseismic distances with the recently released Gaia distances for 74 stars studied in Y{\i}ld{\i}z et al. There is a very good agreement between these two distances; for 64 of these stars, the difference is less than 10 per cent. However, a systematic difference is seen if we use the effective temperature obtained by spectroscopic methods; the Gaia distances are about 5 per cent greater than the asteroseismic distances.