Detection of Stellar Variability in the Central Parsec of the Galaxy
Detection of Stellar Variability in the Central Parsec of the Galaxy
复制标题
检测银河系中央秒差距中的恒星变率
DOI：
10.1007/978-94-011-1070-9_32
复制
发表时间：
1994
影响因子：
0.9
通讯作者：
E. Phinney
中科院分区：
文献类型：
--
作者：
M. Tamura;M. Werner;E. Becklin;E. Phinney
我们通过k波段成像和光度法研究了银河系中心1pc区域恒星的时间变异性。在从20秒到一周的时间尺度上，该地区约有50多个源，包括IRS 16的组成部分和异常高速流出星，没有发现超过0.1等的时间变化。在一年的时间尺度上，我们发现IRS 10E附近的一个新源至少变亮了一个星等，并在其他几个源中检测到幅度约为0.15等的可能变化。
We have searched for time variability of the stars in the central 1 pc region of the Galaxy through K-band imaging and photometry. On timescales ranging from 20 seconds to a week, no time variability greater than 0.1 mag was found for about five dozen sources in this region, including the components of IRS 16 and the anomalous high velocity outflow stars. On a timescale of one year, we found that a new source near IRS 10E had brightened by at least one magnitude and detected possible variability with amplitude ~ 0.15 mag in several other sources.