Collaborative Research: Of Mice and Monsters -- Investigating the Growth of Black Holes in Dwarf Galaxies

合作研究：老鼠和怪物——调查矮星系中黑洞的增长

• 批准号: 1813961
• 负责人: Alyson Brooks
• 金额: $ 35.7万
• 依托单位: Rutgers University New Brunswick
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-08-01 至 2022-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1813961&HistoricalAwards=false
• 关键词: Collaborative; Research; Mice; Monsters; Investigating

Nearly every large galaxy seems to host a supermassive black hole. The mass of the black hole is related to several properties of the host galaxy. However, for lower mass galaxies, these relationships are not as strong as they are for the more massive galaxies. This project will simulate the growth of both low mass galaxies and their black holes simultaneously over the age of the universe to better understand the physical reasons for the relationship between the massive black hole and the properties of the low mass galaxy that hosts it. This project will also involve undergraduate students at a community college.The proposed project intends to model the growth of supermassive black holes (SMBH) in dwarf galaxies in a systematic way to identify the physical origins of the SMBH/galaxy correlations. The project will use their code CHANGA that was used in the ROMULUS25 cosmological simulations. The team will extract individual dwarf galaxies of interest from this simulation and do "zoom-in" simulations of the galaxy evolution. They will use a technique call "genetic modification" that will allow for systematic small variations in the initial conditions of the targeted galaxy without dramatically changing the local cosmological environment. When completed the project will identify the key physical processes that lead to the SMBH/galaxy correlations for dwarf galaxies. The project will also support and mentor first-generation undergraduates in research at both institutions.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

几乎每个大型星系似乎都有一个超级质量的黑洞。黑洞的质量与宿主星系的几种特性有关。但是，对于较低的质量星系，这些关系并不像更庞大的星系那样牢固。该项目将在整个宇宙时代同时模拟低质量星系及其黑洞的生长，以更好地理解大型黑洞与托管它的低质量星系之间关系的物理原因。该项目还将涉及社区学院的本科生。拟议的项目旨在以系统的方式对矮星系中超级质量黑洞（SMBH）的增长进行建模，以识别SMBH/Galaxy相关性的物理起源。该项目将使用其在Romulus25宇宙学模拟中使用的代码changa。该团队将从此模拟中提取感兴趣的单个矮星系，并对星系演变进行“缩放”模拟。他们将使用一种称为“遗传修饰”的技术，该技术将允许在目标星系的初始条件下进行系统的小变化，而不会大大改变局部宇宙学环境。完成后，项目将确定导致矮星系的SMBH/Galaxy相关性的关键物理过程。该项目还将在这两个机构的研究中支持和指导第一代本科生。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和更广泛的影响评估标准通过评估来支持的。

项目成果

The origins of off-centre massive black holes in dwarf galaxies

矮星系中偏心大质量黑洞的起源

• DOI: 10.1093/mnras/stab1665
• 发表时间: 2021
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Bellovary, Jillian M;Hayoune, Sarra;Chafla, Katheryn;Vincent, Donovan;Brooks, Alyson;Christensen, Charlotte R;Munshi, Ferah D;Tremmel, Michael;Quinn, Thomas R;Van Nest, Jordan
• 通讯作者: Van Nest, Jordan

Black Hole Growth and Feedback in Isolated ROMULUS25 Dwarf Galaxies

• DOI: 10.3847/1538-4357/ab960e
• 发表时间: 2019-12
• 期刊: The Astrophysical Journal
• 作者: Ray S. Sharma;A. Brooks;R. Somerville;M. Tremmel;J. Bellovary;A. Wright;T. Quinn