RUI: Multi-Band Spectral Photometry of Orion Population and Dwarf M Stars at Van Vleck Observatory

该奖项支持继续使用卫斯理大学校园内的0.6米望远镜来监测似乎有星斑和其他活动的恒星。根据氢-阿尔法的观测将得到改进，甚至可以监测到正常活动的、类太阳的恒星。通过监测钙红外三重线，观测将扩展到温度较低的恒星上的活动。带有大黑点的恒星在将黑子旋转进和转出我们的视野时会改变它们的亮度。因此，对亮度变化的测量直接告诉我们恒星的自转速度。恒星自转的知识是有价值的，因为自转是恒星黑子和其他类似太阳活动的活动的主要原因。这个节目强调了对非常年轻的恒星的观察，特别是T金牛座和其他T金牛座的成员，因为这些显示出非常强烈的活动。太阳可能曾经也有过类似的活动。

This award supports continued use of the 0.6 meter telescope on the campus of Wesleyan University to monitor stars that appear to have starspots and other activity. Observations in the light of hydrogen-alpha will be improved to the point where even the normally active, Sun-like stars can be monitored. The observations will be extended to activity on cooler stars by monitoring the calcium infrared triplet lines. Stars with large spots change their brightness as they rotate the spots into and out of our view. Thus measurements of brightness changes inform us directly of the rate at which the stars rotate. A knowledge of stellar rotation is valuable because rotation is a major cause for starspots and other activity similar to solar activity. This program has emphasized observations of very young stars, especially the star T Tauri and other members of the T Tauri class, because these show very strong activity. The Sun may once have been similarly active.