Shocking the cradle: Jet induced feedback in galaxy clusters from growing black holes

震撼摇篮：喷流在星系团中因不断增长的黑洞而引起反馈

• 批准号: 0707682
• 负责人: Sebastian Heinz
• 金额: $ 36.29万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0707682&HistoricalAwards=false
• 关键词: Shocking; cradle; Jet; induced; feedback

AST-0707682HeinzBlack holes are the most powerful engines in the Universe, releasing jets of matter into intergalactic space and transforming the large-scale gaseous environment. The biggest black holes sit in the centers of massive galaxy clusters, which are themselves important probes of cosmic structure. However, X-ray observations of cooling flows do not fit theoretical predictions, and suggest that jets are responsible for some of the deviations. This project will study how black holes stop clusters from cooling, and how to construct stable cluster atmospheres including jets and satisfying all observational requirements on temperature, entropy and gas composition. It will also investigate how jets evolve in dynamic environments. This will be done with three-dimensional simulations that include full fluid mechanics, dark matter, self gravity, radiative cooling, star formation, energy feedback from star formation, and black hole tracer particles to follow black hole mergers and spin evolution. These will be the first simulations of resolved jets in realistic clusters and of multiple jets in the same cluster, the first simulations of jets in early Universe environments, and the first detailed simulations of head-tail sources.The results will be compiled into a series of TV-ready animations, to be used as part of an interactive display about black holes. Developed data analysis techniques and algorithms will be made available to the community. The research results will inform graduate and undergraduate classes, and a seminar series geared towards high school teachers.

AST-0707682Heinz黑洞是宇宙中最强大的引擎，将物质射流释​​放到星际空间并改变大规模的气体环境。 最大的黑洞位于巨大星系团的中心，星系团本身就是宇宙结构的重要探测器。 然而，冷却流的 X 射线观测结果与理论预测不符，表明射流是造成某些偏差的原因。 该项目将研究黑洞如何阻止星团冷却，以及如何构建包括喷流在内的稳定星团大气，并满足温度、熵和气体成分的所有观测要求。 它还将研究喷气机如何在动态环境中演化。 这将通过三维模拟来完成，包括完整的流体力学、暗物质、自重力、辐射冷却、恒星形成、恒星形成的能量反馈以及跟踪黑洞合并和自旋演化的黑洞示踪粒子。 这些将是对现实星团中解析喷流和同一星团中多个喷流的首次模拟，对早期宇宙环境中喷流的首次模拟，以及头尾源的首次详细模拟。结果将被编译成一系列电视动画，用作黑洞交互式显示的一部分。 开发的数据分析技术和算法将向社区提供。 研究结果将为研究生和本科生课程以及针对高中教师的研讨会系列提供信息。