A Comprehensive Spectroscopic Study of Gravitationally Lensed Dwarf Galaxies at the Peak Epoch of Star Formation

该团队将研究天文学家已知的最遥远的矮星系。矮小星系位于星系团的后面。前景星系团的引力透镜增强了来自遥远矮小星系的信号。这一技巧让团队可以观察到原本看不见的矮星系。从地面和太空的观察将显示矮小星系如何形成它们的恒星并影响它们的环境。高级团队成员将培训初级团队成员。该团队将与当地高中中代表性不足的学生接触，特别是河滨县青少年会堂的学生。该团队还将开发用于教师培训的在线材料。该团队将调查z~1.5-3.6的矮星系。他们的目标是(1)在被星系团透镜的200个矮小星系的光学和近红外波长进行地面光谱；(2)将这些测量与现有的空间测量相结合；(3)检查莱曼连续谱逃逸分数、尘埃消光、气体外流、金属丰度和恒星形成的“爆发性”。

The team will study the most distant dwarf galaxies known to astronomers. The dwarf galaxies are located behind clusters of galaxies. Gravitational lensing by the foreground clusters boosts the signals from the distant dwarf galaxies. This trick lets the team observe the otherwise-invisible dwarf galaxies. Observations from the ground and space will show how the dwarf galaxies form their stars and affect their environments. Senior team members will train junior team members. The team will engage with underrepresented students in local high schools, notably those of the Riverside County Juvenile Halls. The team will also develop online materials for teacher training.The team will investigate dwarf galaxies at z ~ 1.5-3.6. Their goals are to (1) conduct ground-based spectroscopy at optical and near-infrared wavelengths of 200 dwarf galaxies lensed by galaxy clusters; (2) combine those measurements with existing space-based measurements; and (3) examine the Lyman continuum escape fractions, the dust extinction, the gas outflows, the metallicities, and the "burstiness" of the star formation.