Mapping Young Stars in Space and Time ("MYSST")

The "Measuring Young Stars in Space and Time" (MYSST) project is a large, high spatial resolution, deep Hubble Space Telescope survey of the star forming complex N44 located in the Large Magellanic Cloud (LMC). Observing objects with masses as low as 0.09 M_sun (unreddened 1 Myr pre-main-sequence star), the project aims to draw a comprehensive picture of star formation on the scales of giant molecular clouds by quantifying the star formation history of N44 across space and in time. Observations were taken with the Advanced Camera for Surveys (Wide Field Channel) and the Wide Field Camera 3 (UVIS channel) in the broad band filters F555W and F814W, covering a field of view of approximately 12.2 x 14.7 arcmin^2 or 180 x 215 pc^2 at the distance of the LMC. This archive comprises the primary science output of the survey, i.e. the MYSST photometric catalog and the mosaic images.

“时空青年恒星测量”（Measuring Young Stars in Space and Time，简称MYSST）项目是一项针对大麦哲伦星云（Large Magellanic Cloud，简称LMC）内恒星形成复合体N44的大尺度、高空间分辨率深场哈勃空间望远镜巡天项目。该项目可观测低至0.09倍太阳质量（M☉）的天体，对应未红化的1百万年年龄的主序前恒星，旨在通过量化N44在空间与时间维度上的恒星形成历史，全面刻画巨型分子云尺度下的恒星形成图景。本次观测采用广角巡天相机（Advanced Camera for Surveys，简称ACS）的宽视场通道与第三代广角相机（Wide Field Camera 3，简称WFC3）的紫外可见（UVIS）通道，搭配F555W与F814W宽带滤光片完成，在大麦哲伦星云的距离下，对应视场约为12.2×14.7平方角分（arcmin²）或180×215平方秒差距（pc²）。本档案库包含该巡天的核心科学产出，即MYSST测光星表与拼接图像。