Collaborative Research: CDS&E: Constraining the uncertain physics of galaxy formation: cosmic rays, black holes, and beyond

合作研究：CDS

• 批准号: 2108230
• 负责人: Claude-Andre Faucher-Giguere
• 金额: $ 33.08万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2108230&HistoricalAwards=false
• 关键词: Collaborative; Research; CDS& Constraining; uncertain

Computer simulations of galaxy formation are powerful tools to help understand, test, and predict the observed properties of galaxies in the local and extremely distant Universe. Given the large number of sensitive wide-area galaxy surveys that have recently started (or are soon to be underway) there is a critical need for simulations that model the formation and evolution of galaxies with the highest accuracy. The proposed research will build upon the group’s earlier transformative galaxy simulations by adding the effects of gas accretion onto massive black holes, extremely high energy atomic nuclei (cosmic rays), and magnetic fields. These efforts will additionally train graduate and undergraduate students, mentor area high school students, and produce animations for public shows. The team will continue an educational program for prison inmates.This research represents the further development of a project started several years ago by the FIRE (Feedback in Realistic Environments) collaboration to create state-of-the-art hydrodynamic simulations of galaxy formation and evolution that included a detailed treatment of “feedback” from massive stars and supernovae. That work successfully reproduced a wide range of observed galaxy properties – masses, chemical abundances trends, and scaling relations – for dwarf galaxies up to approximately Milky Way sized (L*) systems. For more massive galaxies, an accurate treatment of the energy injected by rapidly accreting massive black holes (i.e., active galactic nuclei; AGN) is required. This is one of the primary updates to the original FIRE simulation code proposed here. Other potentially important processes, including magnetic fields and cosmic rays, and a new framework to track chemical abundances are to be implemented as well. These promise to result in new galaxy simulations with parsec-scale resolution that are more accurate and that allow predictions (i.e., “forward modeling”) for a wide range of physical phenomena, including resolved radio and gamma-ray emission, cosmic ray spectra, Faraday rotation in and around galaxies, the Sunyaev-Zeldovich effect, and the dynamics of the circum-galactic medium. The FIRE team will make publicly available to the scientific community new modules for the GIZMO simulation code developed as part of this work, as well as data products from the project. In the area of Broader Impacts this project will support four graduate students, a dozen undergraduate students, and a number of high-school students involved in creating scientific animations. The team will also engage inmates in educational activities via a partnership with the Stateville Correctional Center.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.

鉴于最近开始（或即将开始）的大量敏感广域星系调查，星系形成的计算机模拟是帮助理解、测试和预测本地和极遥远宇宙中观测到的星系特性的强大工具。正在进行中）迫切需要以最高精度模拟星系的形成和演化。拟议的研究将建立在该小组早期的变革性星系模拟的基础上，通过添加气体吸积对大质量黑洞、极高能量原子的影响。细胞核（宇宙射线）和磁场。这些努力还将培训研究生和本科生，指导地区高中生，并为公共表演制作动画。这项研究代表了监狱囚犯的进一步发展。几年前，FIRE（现实环境中的反馈）合作组织启动了一个项目，旨在创建最先进的星系形成和演化流体动力学模拟，其中包括对来自大质量恒星和超新星的“反馈”的详细处理，并取得了成功。再现了各种观测到的星系特性——质量、化学丰度趋势和尺度关系——对于矮星系直至大约银河系大小（L*）的系统，对于更大质量的星系，精确处理快速吸积质量注入的能量。黑洞（即活动星系核；AGN）是对此处提出的原始 FIRE 模拟代码的主要更新之一，其他潜在的重要过程，包括磁场和宇宙射线。还将实施一个跟踪化学丰度的新框架，这有望产生具有秒差距尺度分辨率的新星系模拟，该模拟更准确，并且允许对各种物理现象进行预测（即“正向建模”）。 ，包括解析的射电和伽马射线发射、宇宙射线光谱、星系内及​​其周围的法拉第旋转、Sunyaev-Zeldovich 效应以及环绕星系介质的动力学，FIRE 团队将向公众公开。作为这项工作的一部分，科学界开发了 GIZMO 模拟代码的新模块，以及该项目的数据产品。在更广泛的影响领域，该项目将支持四名研究生、十几名本科生和一些学生。该团队还将通过与斯泰特维尔惩教中心的合作，让囚犯参与教育活动。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力优势和更广泛的评估，被认为值得支持。影响审查标准。

项目成果

What causes the formation of discs and end of bursty star formation?

是什么导致了圆盘的形成和爆发式恒星形成的结束？

• DOI: 10.1093/mnras/stad1902
• 发表时间: 2023-06
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Hopkins, Philip F.;Gurvich, Alexander B.;Shen, Xuejian;Hafen, Zachary;Grudić, Michael Y.;Kurinchi;Hayward, Christopher C.;Jiang, Fangzhou;Orr, Matthew E.;Wetzel, Andrew;et al
• 通讯作者: et al

Galaxies lacking dark matter produced by close encounters in a cosmological simulation

宇宙学模拟中缺乏因近距离接触而产生的暗物质的星系

• DOI: 10.1038/s41550-021-01598-4
• 发表时间: 2022-04
• 期刊: Nature Astronomy
• 影响因子: 14.1
• 作者: Moreno, Jorge;Danieli, Shany;Bullock, James S.;Feldmann, Robert;Hopkins, Philip F.;Çatmabacak, Onur;Gurvich, Alexander;Lazar, Alexandres;Klein, Courtney;Hummels, Cameron B.;et al
• 通讯作者: et al

Characterizing mass, momentum, energy, and metal outflow rates of multiphase galactic winds in the FIRE-2 cosmological simulations

在 FIRE-2 宇宙学模拟中表征多相星系风的质量、动量、能量和金属流出率

• DOI: 10.1093/mnras/stab2714
• 发表时间: 2021-10
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Pandya, Viraj;Fielding, Drummond B;Anglés;Somerville, Rachel S;Bryan, Greg L;Hayward, Christopher C;Stern, Jonathan;Kim, Chang;Quataert, Eliot;Forbes, John C;et al
• 通讯作者: et al

Cosmological Simulations of Quasar Fueling to Subparsec Scales Using Lagrangian Hyper-refinement

使用拉格朗日超细化对亚秒差距尺度的类星体进行宇宙学模拟

• DOI: 10.3847/1538-4357/ac09e8
• 发表时间: 2021-08
• 期刊: The Astrophysical Journal
• 作者: Anglés;Quataert, Eliot;Hopkins, Philip F.;Somerville, Rachel S.;Hayward, Christopher C.;Faucher;Bryan, Greg L.;Kereš, Dušan;Hernquist, Lars;Stone, James M.
• 通讯作者: Stone, James M.

The impact of cosmic rays on dynamical balance and disc–halo interaction in L ⋆ disc galaxies

宇宙射线对 L 盘星系动态平衡和盘晕相互作用的影响

• DOI: 10.1093/mnras/stac2236
• 发表时间: 2022-08
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Chan, T. K.;Kereš, Dušan;Gurvich, Alexander B.;Hopkins, Philip F.;Trapp, Cameron;Ji, Suoqing;Faucher
• 通讯作者: Faucher