CAREER: The Physics of Stellar Feedback and Star Formation Regulation in Galaxies

职业：星系中恒星反馈和恒星形成调节的物理学

• 批准号: 1652522
• 负责人: Claude-Andre Faucher-Giguere
• 金额: $ 79.43万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-09-01 至 2023-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1652522&HistoricalAwards=false
• 关键词: CAREER; Physics; Stellar; Feedback; Star

The team will study why stars form so slowly and inefficiently in galaxies. They will model key "feedback" effects, like how young stars blast their surroundings with intense light. The team will add the models to new simulations of how stars form. These simulations will have much more realism than prior ones. Senior team members will mentor junior members. The latter will include undergraduates from universities in Puerto Rico and Hispanic-serving universities in California. The team will showcase their research at science museums in Puerto Rico and in high school classrooms in the Chicago area. The team will investigate how stellar feedback operates and how it regulates star formation in galaxies. Their goals are to (1) reveal how interstellar turbulence and galactic winds are generated; (2) investigate the effects of time-dependent molecular chemistry on the interstellar medium, star formation, and outflows; (3) quantify the effects of self-consistent radiation-hydrodynamics on radiative feedback and observational tracers; (4) study the effects of magnetic fields and cosmic rays on the interstellar medium and galactic winds; (5) synthesize the results into a generalized analytic theory of star formation regulation and outflows; (6) develop new, more predictive sub-grid models to capture these processes in fully cosmological galaxy evolution models; and (7) release mock data products for comparison with current and future observations.

团队将研究为什么星系在星系中如此缓慢且效率低下的原因。 他们将建模关键的“反馈”效果，例如年轻的恒星如何用强烈的光爆炸周围环境。 团队将将这些模型添加到有关恒星形成方式的新模拟中。 这些模拟将比以前的模拟更为现实。 高级团队成员将指导初级成员。 后者将包括来自波多黎各大学的大学生和加利福尼亚州西班牙裔美国人的大学。 该团队将在波多黎各的科学博物馆和芝加哥地区的高中教室展示他们的研究。该团队将调查出色的反馈的运作方式以及如何调节星系中的恒星形成。 他们的目标是（1）揭示了星际湍流和银河系风如何产生； （2）研究时间依赖性分子化学对星际介质，恒星形成和流出的影响； （3）量化自洽辐射流动力学对辐射反馈和观察示踪剂的影响； （4）研究磁场和宇宙射线对星际介质和银河风的影响； （5）将结果综合为恒星形成调节和流出的广义分析理论； （6）开发新的，更具预测性的子网格模型，以在完全宇宙的星系演化模型中捕获这些过程； （7）释放模拟数据产品，以与当前和将来的观察结果进行比较。

项目成果

Discrete Effects in Stellar Feedback: Individual Supernovae, Hypernovae, and IMF Sampling in Dwarf Galaxies

恒星反馈中的离散效应：矮星系中的单个超新星、超新星和 IMF 采样

• DOI: 10.1093/mnras/sty1928
• 发表时间: 2018
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Su, Kung-Yi;Hopkins, Philip F;Hayward, Christopher C;Ma, Xiangcheng;Boylan-Kolchin, Michael;Kasen, Daniel;Kereš, Dušan;Faucher-Giguère, Claude-André;Orr, Matthew E;Wheeler, Coral
• 通讯作者: Wheeler, Coral

Simulating Hydrodynamics in Cosmology with CRK-HACC

• DOI: 10.3847/1538-4365/aca58d
• 发表时间: 2022-02
• 期刊: The Astrophysical Journal Supplement Series
• 作者: N. Frontiere;J. D. Emberson;M. Buehlmann;Joseph Adamo;Salman Habib;K. Heitmann;C. Faucher-Giguère

Unravelling the physics of multiphase AGN winds through emission line tracers

通过发射线示踪剂揭示多相 AGN 风的物理原理

• DOI: 10.1093/mnras/stab556
• 发表时间: 2021
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Richings, Alexander J;Faucher-Giguère, Claude-André;Stern, Jonathan
• 通讯作者: Stern, Jonathan

The Keck Baryonic Structure Survey: using foreground/background galaxy pairs to trace the structure and kinematics of circumgalactic neutral hydrogen at z ∼ 2

凯克重子结构巡天：使用前景/背景星系对追踪 z ≤ 2 处绕星系中性氢的结构和运动学

• DOI: 10.1093/mnras/staa2808
• 发表时间: 2020
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Steidel, Charles C;Hummels, Cameron B;Rudie, Gwen C;Trainor, Ryan F;Bogosavljević, Milan;Erb, Dawn K;Pettini, Max;Reddy, Naveen A
• 通讯作者: Reddy, Naveen A

Stellar feedback-regulated black hole growth: driving factors from nuclear to halo scales

恒星反馈调节的黑洞生长：从核尺度到晕尺度的驱动因素

• DOI: 10.1093/mnras/stad171
• 发表时间: 2023
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Byrne, Lindsey;Faucher-Giguère, Claude-André;Stern, Jonathan;Anglés-Alcázar, Daniel;Wellons, Sarah;Gurvich, Alexander B.;Hopkins, Philip F.
• 通讯作者: Hopkins, Philip F.