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.

这个项目的目标是用MUSTANG2来测量遥远星系团的物理特性，MUSTANG2是一个215像素的热辐射计相机，在格林班克望远镜上以3mm波长进行观测。这将有助于理解早期宇宙结构的演变。更广泛的影响包括天文仪器的本科研究生的培训，特别是那些来自代表性不足的群体。此外，团队成员还积极参与费城地区的公共宣传活动，包括明星派对、费城科学节，以及在表现不佳的学校提供指导。Sunyaev-Zel'dovich效应，即微波背景在穿过星团时的衰减，将在9弧秒的角分辨率下被观察到。其他进行此类测量的望远镜没有这种分辨率。作者计划研究星系团物理的各个方面，包括尺度关系、大半径的压力分布和射电泡中的压力差。