Collaborative Project - RUI: Continuing Simultaneous Spectroscopy and Photometry of Interacting Binaries

相互作用的双星星系统的话题已经成为一个 恒星天体物理学，寻找传统之间的桥梁 研究单颗恒星的演化以及 包括伴星周围吸积盘的演化， 膨胀的恒星以及偶发的“质量损失者”，如 B-发射和激变变星。在这为期两年的“锐” 建议（本科生大学），校长 研究人员和他的合作者，E博士。大学的奥尔森 伊利诺伊州，将继续同时监测计划， 相互作用的双星，其中包括一颗正在演化的热星星（“大陵五”） 系统”）。他们将在1米处进行观测， 望远镜山圣地亚哥外的拉古纳天文台。他们将 在双重模式下使用该设施，监测光和光谱 当这些恒星绕一颗恒星运行时，几乎同时发生变化 每隔几天就来一次 他们会比较这些数据 每个星星的整个轨道周期， 吸积盘，其中包括“非LTE”效应。 这 预计提案将包括广泛参与 本科生。

The topic of interacting binary star systems has become a nexus of stellar astrophysics, searching as a bridge between traditional studies of the evolution of single stars and the newer areas that include the evolution of accretion disks around companions to expanding stars as well as of episodic "mass losers," such as B-emission and cataclysmic variable stars. In this two-year "RUI" proposal (for undergraduate-only universities), the Principal Investigator and his collaborator, Dr. E. Olson of the University of Illinois, will continue a program of simultaneous monitoring of interacting binaries that include an evolving hot star ("Algol systems"). They will carry out observations at the 1-meter telescope of Mt. Laguna Observatory outside of San Diego. They will use this facility in a dual mode, monitoring light and spectral variations nearly simultaneously as these stars orbit around one another every few days. They will compare these data obtained throughout the orbital period for each star with models of accretion disks in which "non-LTE" effects are included. This proposal is expected to include extensive involvement with undergraduate students.