COLLABORATIVE RESEARCH: Independently Determined Distances to the Magellanic Clouds

AST 9528134 合作项目：独立确定麦哲伦云的距离。 普渡大学的托马斯莫菲特博士和得克萨斯大学的托马斯巴恩斯博士希望使用一种独立于标准河外距离方法的技术来完成对大麦哲伦云和小麦哲伦云距离的测定。 目前，距离是使用造父变星的周期-光度关系、天琴座RR平均绝对星等和主序星拟合技术获得的。 这些标准方法不一致，导致不确定的距离尺度。 巴恩斯和莫菲特博士将使用视觉表面亮度技术来确定到麦哲伦云的距离，目的是改进到这两个关键星系的距离测量。 ================================================

AST 9528134 Collaborative Project: Independently Determined Distances to the Magellanic Clouds. Dr. Thomas Moffett at Purdue University and Dr. Thomas Barnes at the University of Texas expect to complete the determination of distances to the Large and Small Magellanic Clouds using a technique that is independent of the standard extragalactic distance methods. Distances are currently obtained using the Cepheid Period-Luminosity relation, the RR Lyrae mean absolute magnitude, and main-sequence fitting techniques. These standard methods disagree and lead to uncertain distance scales. Drs. Barnes and Moffett will use the visual surface brightness technique to determine distances to the Magellanic Clouds with the intent of improving the distance measures to these two key galaxies. ================================================