High Resolution Observations of the Sunyaev-Zel'dovich Effect to Measure the Physics of Distant Clusters of Galaxies

通过高分辨率观测 Sunyaev-Zeldovich 效应来测量遥远星系团的物理性质

• 批准号: 1615604
• 负责人: Mark Devlin
• 金额: $ 55.52万
• 依托单位: University of Pennsylvania
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-09-01 至 2020-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1615604&HistoricalAwards=false
• 关键词: Resolution; Observations; Sunyaev; Zel; dovich

The goal of this program is to measure the physics of distant clusters of galaxies with MUSTANG2, a 215-pixel bolometer camera observing at 3mm wavelength on the Green Bank Telescope. This will help in understanding of the evolution of structure in the early universe. Broader impacts include training of undergraduate graduate students in astronomical instrumentation, especially those from underrepresented groups. In addition, members of the team are actively involved in public outreach in the Philadelphia area including star parties, the Philadelphia science festival, and mentoring in low-performing schools. The Sunyaev-Zel'dovich effect, a diminution in the Microwave Background as it passes through clusters, will be observed at 9 arc-second angular resolution. Other telescopes making such measurements do not have this level of resolution. The authors plan to examine various aspects of cluster physics, including scaling relations, pressure profiles to large radii, and pressure differences in radio bubbles.

该程序的目的是用Mustang2测量星系远处的物理，这是一种215像素座计摄像机，在绿色库望远镜上以3mm的波长观察。 这将有助于理解早期宇宙中结构的演变。更广泛的影响包括培训本科研究生在天文学仪器中，尤其是来自代表性不足的群体的培训。 此外，该团队的成员正在积极参与费城地区的公共宣传，包括明星派对，费城科学节和在表现低下的学校的指导。 Sunyaev-zel'dovich效应将在9弧形的角度分辨率下观察到微波背景中的减小。 进行此类测量的其他望远镜没有这种分辨率的水平。作者计划检查集群物理的各个方面，包括扩展关系，大规模半径的压力谱以及无线电气泡的压力差异。