Probing New Physics in Galaxy Formation at Ultra-High Resolution

以超高分辨率探索星系形成的新物理

• 批准号: 1713353
• 负责人: Philip Hopkins
• 金额: $ 2.01万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-06-01 至 2019-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1713353&HistoricalAwards=false
• 关键词: Probing; New; Physics; Galaxy; Formation

A wealth of exciting new observational projects promise to revolutionize our understanding of galaxy and star formation: from the LSST and Gaia measuring Milky Way stellar populations in game-changing detail, to the James Webb Space Telescope probing galaxies during cosmic "first light", while the Hubble telescope identifies the long-"missing" mass in the medium around galaxies. This project intends to run large-scale cosmological hydrodynamic simulations on Blue Waters to make detailed predictions and leverage these transformative observations. The simulations will support the Feedback In Realistic Environments (FIRE) project, a network of theorists at 13 institutions, including several NSF postdoctoral and graduate student fellows: this collaboration has developed new, fully-cosmological simulations of galaxy formation that explicitly follow a diverse range of physics. This project will carry out novel studies of galaxy formation by running cosmological simulations on Blue Waters with unprecedented resolution and physics. The project run a large suite of cosmological simulations, targeting galaxies from the faintest dwarfs through the Milky Way, at the ultra-high resolution and realism required to leverage the next-generation of observations. The petascale resources of Blue Waters will allow the project to resolve each galaxy with ~1 billion particles and follow them self-consistently over their entire history in live cosmological settings. These simulations will model the physics of galaxy formation with unprecedented realism, uniquely incorporating not only all of the important stellar feedback mechanisms (radiation pressure, photo-heating, stellar winds, supernovae), but also magnetic fields, physical (anisotropic) Braginskii conduction and viscosity, passive scalar (metal) diffusion, and explicit, multi-wavelength radiation hydrodynamics. This represents the culmination of several years of work supported by NSF, and will be critical to enable the science of the FIRE project. The project will support an outreach component involving high school students and teachers, and undergraduate students, as well as a large science team using these simulations. The simulations will be used to make predictions specifically for next-generation observatories including (but not limited to): JWST, LSST, Gaia, and HST, in order to test theories of galaxy and star formation, constrain the origin of the heavy elements in the Universe, the re-ionization history of the early Universe, the effects of fundamental plasma physics in the circum and inter-galactic medium, and the nature of cold dark matter.

大量令人兴奋的新观察项目有望彻底改变我们对银河系和星形形成的理解：从LSST和Gaia以改变游戏规则的细节来测量Mirky Way Stellar人群，到James Webb Space Telescope在宇宙“ First Light”期间探测星系，而Hubble The Hubble The Hubble The Hibble the Hubble the Hive the Rondy of the Med Med Med Med Mied”众所周知“ Med Med Mied”“ Med Med Mied”“ Med Med Mied”。 该项目打算在蓝色水域上运行大规模的宇宙流体动力模拟，以进行详细的预测并利用这些变革性观察。模拟将支持13个机构的理论家网络（包括几个NSF博士后和研究生研究员）中的反馈（FIRE）项目：这项合作开发了有关星系形成的新的，完全综合的模拟，这些模拟明确地遵循了各种物理学的范围。该项目将通过在没有前所未有的分辨率和物理学的蓝色水域上运行宇宙学模拟来进行银河形成的新研究。该项目运行了一大堆宇宙学模拟，以超高的分辨率和现实主义的利用，以利用下一代观测，将最微弱的矮人的星系瞄准了最微弱的矮人的星系。蓝色水域的Petascale资源将使该项目能够用约10亿个颗粒来解决每个星系，并在实时宇宙学环境中自以为是的整个历史。 These simulations will model the physics of galaxy formation with unprecedented realism, uniquely incorporating not only all of the important stellar feedback mechanisms (radiation pressure, photo-heating, stellar winds, supernovae), but also magnetic fields, physical (anisotropic) Braginskii conduction and viscosity, passive scalar (metal) diffusion, and explicit, multi-wavelength radiation流体动力学。这代表了NSF支持的几年工作的高潮，对于实现消防项目的科学至关重要。 该项目将支持使用这些模拟的大型科学团队涉及高中生和教师，本科生的外展部分。这些模拟将用于对下一代观测值进行专门预测，包括（但不限于）：JWST，LSST，GAIA和HST，以测试星系和星形形成的理论，以限制宇宙中重元素的重元素的起源，即早期宇宙的重新离子历史，即质量和质量的媒介和奇异的媒介和奇异的媒介，并在循环中进行了循环。

项目成果

A simple non-equilibrium feedback model for galaxy-scale star formation: delayed feedback and SFR scatter

星系级恒星形成的简单非平衡反馈模型：延迟反馈和恒星形成率散射

• DOI: 10.1093/mnras/stz1156
• 发表时间: 2019
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Orr, Matthew E;Hayward, Christopher C;Hopkins, Philip F
• 通讯作者: Hopkins, Philip F

A new discrete dynamical friction estimator based on N -body simulations

一种基于N体模拟的新型离散动摩擦估计器

• DOI: 10.1093/mnras/stad036
• 发表时间: 2023
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Ma, Linhao;Hopkins, Philip F;Kelley, Luke Zoltan;Faucher-Giguère, Claude-André
• 通讯作者: Faucher-Giguère, Claude-André

Effects of the environment and feedback physics on the initial mass function of stars in the STARFORGE simulations

STARFORGE 模拟中环境和反馈物理对恒星初始质量函数的影响

• DOI: 10.1093/mnras/stac2060
• 发表时间: 2022
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Guszejnov, Dávid;Grudić, Michael Y.;Offner, Stella S. R.;Faucher-Giguère, Claude-André;Hopkins, Philip F.;Rosen, Anna L.
• 通讯作者: Rosen, Anna L.

Non-linear evolution of instabilities between dust and sound waves

尘埃和声波之间不稳定性的非线性演化

• DOI: 10.1093/mnras/stz2128
• 发表时间: 2019
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Moseley, Eric R;Squire, Jonathan;Hopkins, Philip F
• 通讯作者: Hopkins, Philip F

Local positive feedback in the overall negative: the impact of quasar winds on star formation in the FIRE cosmological simulations

整体负反馈中的局部正反馈：FIRE宇宙学模拟中类星体风对恒星形成的影响

• DOI: 10.1093/mnras/stad2079
• 发表时间: 2023
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Mercedes-Feliz, Jonathan;Anglés-Alcázar, Daniel;Hayward, Christopher C.;Cochrane, Rachel K.;Terrazas, Bryan A.;Wellons, Sarah;Richings, Alexander J.;Faucher-Giguère, Claude-André;Moreno, Jorge;Su, Kung Yi
• 通讯作者: Su, Kung Yi