Andromeda Galaxy中六个场的深度光学测光
Deep Optical Photometry of Six Fields in the Andromeda Galaxy
摘要:
利用哈勃太空望远镜上的高级巡天照相机,我们已经获得了仙女座星系六个区域中远低于最古老的主序关闭的深度光学图像。磁场分布在东南短轴上的四个位置,一个在巨大的恒星流中,一个在东北长轴上。这些数据是作为三个大型观测计划的一部分获得的,这些观测计划旨在探测银河系各种结构中恒星星族的恒星形成历史。在本文中,我们提出的图像,目录,和人造星的测试,这些观测计划作为一个补充,以前发表的分析。这些高水平的科学产品也存档在太空望远镜科学研究所的多任务档案馆。
英文摘要:
Using the Advanced Camera for Surveys on the Hubble Space Telescope, we have obtained deep optical images reaching well below the oldest main sequence turnoff in six fields of the Andromeda Galaxy. The fields fall at four positions on the southeast minor axis, one position in the giant stellar stream, and one position on the northeast major axis. These data were obtained as part of three large observing programs designed to probe the star formation history of the stellar population in various structures of the galaxy. In this paper, we present the images, catalogs, and artificial star tests for these observing programs as a supplement to the analyses published previously. These high-level science products are also archived at the Multimission Archive at the Space Telescope Science Institute.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。