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.

几乎每个大星系都有一个超大质量黑洞。黑洞的质量与宿主星系的几个性质有关。然而，对于较低质量的星系，这些关系并不像对于更大质量的星系那样强烈。这个项目将模拟低质量星系和它们的黑洞在宇宙年龄的同时增长，以更好地理解大质量黑洞和它所在的低质量星系之间关系的物理原因。这个项目也将涉及社区学院的本科生。拟议的项目打算模拟超大质量黑洞（SMBH）的增长。在矮星系中，以系统的方式确定SMBH/星系相关性的物理起源。该项目将使用他们在ROMULUS 25宇宙学模拟中使用的代码CHANGA。该团队将从这个模拟中提取感兴趣的单个矮星系，并对星系演化进行“放大”模拟。他们将使用一种名为“基因改造”的技术，这种技术将允许目标星系的初始条件发生系统性的微小变化，而不会显著改变当地的宇宙学环境。完成后，该项目将确定导致矮星系SMBH/星系相关性的关键物理过程。该项目还将支持和指导第一代本科生在这两个机构的研究。这个奖项反映了NSF的法定使命，并已被认为是值得通过使用基金会的智力价值和更广泛的影响审查标准进行评估的支持。

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