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: 2108314
• 负责人: Dusan Keres
• 金额: $ 33.09万
• 依托单位: University of California-San Diego
• 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=2108314&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.

银河形成的计算机模拟是帮助理解，测试和预测当地和极端宇宙中星系的观察到的特性的强大工具。鉴于最近开始（或即将进行的），大量敏感的广阔的银河系调查是对模拟星系的形成和演变的迫切需要，其精度最高。拟议的研究将通过将气体积聚的影响添加到巨大的黑洞，极高的能量原子核（宇宙射线）和磁场上，建立在该集团较早的变革性星系模拟的基础上。这些努力还将培训毕业生和本科生，精神区高中生，并为公众演出制作动画。该团队将继续为监狱囚犯进行教育计划。这项研究代表了几年前，由火灾（现实环境中的反馈）协作开始的项目的进一步发展，以创建最先进的银河形成和进化的流体动力模拟，其中包括对大型恒星和超新星对“反馈”的详细处理。这项工作成功地重现了广泛的观察到的星系性能 - 质量，化学丰度趋势和扩展关系 - 矮星系较高到大约是银河系的大小（L*）系统。对于更大的星系，需要通过快速接受大量黑洞（即主动银河核； AGN）对能量进行准确处理。这是此处提出的原始火灾模拟代码的主要更新之一。还将实施其他潜在的重要过程，包括磁场和宇宙射线，以及追踪化学丰度的新框架。这些有望通过parsec尺度的分辨率进行新的星系模拟，这些模拟更准确，并且可以预测广泛的物理现象（包括已解决的无线电和伽马射线排放，宇宙射线镜头，宇宙射线镜头，法拉aday旋转，sunyaev synavies in and Sunyaev-Zledovich-Zeldovich-Zeldect of Dynamelics of Dynamelics of Dynamelics of Dynectics of Dynectics of Dynectics of Dynectics of Dynamelication cosmic Ray Spectra，Faraday旋转。消防团队将为科学界公开使用新模块，以作为本工作的一部分开发的Gizmo仿真代码以及项目的数据产品。在更广泛影响的领域，该项目将支持四名研究生，十几名本科生以及许多参与创建科学动画的高中生。该团队还将通过与Stateville惩教中心的合作伙伴关系从事教育活动。该奖项反映了NSF的法定任务，并使用基金会的知识分子优点和更广泛的影响标准，被视为通过评估而被视为珍贵的支持。

项目成果

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
• 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-Giguère, Claude-André
• 通讯作者: Faucher-Giguère, Claude-André

Gas infall and radial transport in cosmological simulations of milky way-mass discs

银河系质量盘宇宙学模拟中的气体流入和径向传输

• DOI: 10.1093/mnras/stab3251
• 发表时间: 2021
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Trapp, Cameron W.;Kereš, Dušan;Chan, Tsang Keung;Escala, Ivanna;Hummels, Cameron;Hopkins, Philip F.;Faucher-Giguère, Claude-André;Murray, Norman;Quataert, Eliot;Wetzel, Andrew
• 通讯作者: Wetzel, Andrew

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
• 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-Vendhan, Shalini;Hayward, Christopher C.;Jiang, Fangzhou;Orr, Matthew E.;Wetzel, Andrew
• 通讯作者: Wetzel, Andrew

FIREbox: Simulating galaxies at high dynamic range in a cosmological volume

• DOI: 10.1093/mnras/stad1205
• 发表时间: 2022-05
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: R. Feldmann;E. Quataert;C. Faucher-Giguère;P. Hopkins;Onur Çatmabacak;D. Keres̆;L. Bassini;Mauro Bernardini;J. Bullock;Elia Cenci;J. Gensior;Lichen Liang;J. Moreno;A. Wetzel

The galactic dust-up: modelling dust evolution in FIRE

银河尘暴：在 FIRE 中模拟尘埃演化

• DOI: 10.1093/mnras/stac1542
• 发表时间: 2022
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Choban, Caleb R.;Kereš, Dušan;Hopkins, Philip F.;Sandstrom, Karin M.;Hayward, Christopher C.;Faucher-Giguère, Claude-André
• 通讯作者: Faucher-Giguère, Claude-André