Intrinsic Properties of RR Lyrae Variables

AST-9988259LaydenDr.鲍林绿色州立大学的安德鲁·莱登将领导一个由四个不同项目组成的研究计划，其总体目标是提高我们对银河系中古老恒星种群的理解。 莱顿博士将对球状星团NGC 3201中的天琴座RR型恒星进行测光;他将对富含金属的球状星星群中的天琴座RR型恒星进行调查;他将利用天琴座RR型星星的观测结果作为测量星际红化的工具;他将调查人马座矮星系中星星形成的历史。 该研究计划的特点是学生参与的水平和程度，这将有助于促进本科教育和经验，为博士职前教师。 该奖项由天文科学部的银河天文学计划资助。

AST-9988259LaydenDr. Andrew Layden of Bowling Green State University will direct a research program comprising four distinct projects that have the overall objective of improving our understanding of the old stellar populations in our Galaxy. Dr. Layden will do photometry of RR Lyrae stars in the globular cluster NGC3201; he will do a survey of RR Lyrae stars in metal-rich globular star clusters; he will use RR Lyrae star observations as a tool to measure interstellar reddening; and he will investigate the history of star formation in the Sagittarius Dwarf galaxy. The research program is distinguished by the level and extent of student involvement which will serve to promote undergraduate education and experience for pre-service teachers at Dr. Layden's institution. This award is funded out of the Galactic Astronomy Program in the Division of Astronomical Sciences.***