High Resolution Observations of the Sunyaev-Zel'dovich Effect in Clusters of Galaxies at 90 GHz Using the GBT

使用 GBT 在 90 GHz 下对星系团中的 Sunyaev-Zeldovich 效应进行高分辨率观测

• 批准号: 1309032
• 负责人: Mark Devlin
• 金额: $ 50.63万
• 依托单位: University of Pennsylvania
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-01 至 2017-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1309032&HistoricalAwards=false
• 关键词: Resolution; Observations; Sunyaev; Zel; dovich

Clusters of galaxies are the largest gravitationally bound objects in the Universe, provide important tests of cosmology, and serve as rich astrophysical laboratories for events such as mergers and Active Galactic Nuclei (AGN) outbursts. As tracers of the evolution of structure, clusters of galaxies represent an important cosmological tool, and this project aims to directly measure the pressure profile in the intracluster medium of clusters to advance our understanding of cluster physics.This project aims to map the Sunyaev-Zel'dovich effect (SZE) in galaxy clusters at 90 GHz with the 100-meter Green Bank Telescope (GBT) with a combination of unprecedented mapping speed, resolution, and sky coverage. Using the MUSTANG-1.5 instrument, the investigators will image a statistically significant set of X-ray and SZE selected sample of massive clusters in three seasons and will observationally determine the scatter in cluster-mass/SZE observable scaling relations due to cluster mergers, AGN feedback, and other astrophysical processes.Educationally, the principal investigator will also provide valuable research experiences to undergraduate and high school students by bringing them into the research program to assist, and even run, remote observing sessions.

星系簇是宇宙中最大的重力物体，提供了重要的宇宙学检验，并作为合并和主动银河核（AGN）爆发等事件的丰富天体物理实验室。 作为结构演变的示踪剂，星系簇代表了一个重要的宇宙学工具，该项目旨在直接测量集群内媒介中的压力曲线，以促进我们对聚类物理学的理解。该项目旨在将Sunyaev-Zel'dovich效应（SZE）的Sunyaev-Zel'dovich效应（SZE）绘制为Galaxy Clusters in 90 Ghz的组合，将其与100-MERTER combine（SZE）绘制为100-METER TELES（TELES）（TELES）（TELES）（TELES）（TELES）（TELES）（SZE）。空前的映射速度，分辨率和天空覆盖范围。 使用Mustang-1.5仪器，调查人员将在三个季节中对一组具有统计学意义的X射线和SZE选定的大量群集样本，并将在观察上确定集群质量/SZE/SZE可观察到的缩放缩放关系的散布，由集群合并，AGN反馈，AGN反馈，其他划分的研究员将不足的研究人员提供良好的研究，并为高级研究员提供了良好的研究经验，并将其带入主要的研究经验，以使资产研究使高级研究员融入了公主的研究，并将其延长到高级研究中，并将其用于培训。协助甚至运行远程观察会议。