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.

该团队将研究为什么星系中恒星的形成如此缓慢且低效。 他们将对关键的“反馈”效应进行建模，例如年轻恒星如何用强光照射周围环境。 该团队将把这些模型添加到恒星形成的新模拟中。 这些模拟将比以前的模拟更加真实。 资深团队成员将指导初级成员。 后者将包括波多黎各大学和加州拉美裔大学的本科生。 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成果。该团队将研究恒星反馈如何运作以及它如何调节星系中恒星的形成。 他们的目标是（1）揭示星际湍流和银河风是如何产生的； (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）量化自洽辐射流体动力学对辐射反馈和观测示踪剂的影响； （4）研究磁场和宇宙线对星际介质和银河风的影响； （5）将结果综合成恒星形成调控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，以在完全宇宙学星系演化模型中捕获这些过程； (7) 发布模拟数据产品，以便与当前和未来的观测结果进行比较。

项目成果

What FIREs up star formation: the emergence of the Kennicutt–Schmidt law from feedback

是什么引发了恒星的形成：反馈中肯尼卡特·施密特定律的出现

• DOI: 10.1093/mnras/sty1241
• 发表时间: 2018-05
• 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;Chan, T K;Faucher;Feldmann, Robert;Kereš, Dušan;Murray, Norman;Quataert, Eliot
• 通讯作者: Quataert, Eliot

When feedback fails: the scaling and saturation of star formation efficiency

当反馈失败时：恒星形成效率的缩放和饱和

• DOI: 10.1093/mnras/sty035
• 发表时间: 2018-01
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Grudić, Michael Y;Hopkins, Philip F;Faucher;Quataert, Eliot;Murray, Norman;Kereš, Dušan
• 通讯作者: Kereš, Dušan

Kinematics of the Circumgalactic Medium of a z = 0.77 Galaxy from Mg ii Tomography

Mg ii 层析成像中 z = 0.77 星系的环绕星系介质的运动学

• DOI: 10.3847/1538-4357/abfa11
• 发表时间: 2021-06
• 期刊: The Astrophysical Journal
• 作者: Mortensen, Kris;G. C., Keerthi Vasan;Jones, Tucker;Faucher;Sanders, Ryan L.;Ellis, Richard S.;Leethochawalit, Nicha;Stark, Daniel P.
• 通讯作者: Stark, Daniel P.

Probing the CGM of low-redshift dwarf galaxies using FIRE simulations

使用 FIRE 模拟探测低红移矮星系的 CGM

• DOI: 10.1093/mnras/staa3322
• 发表时间: 2020-11
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Li, Fei;Rahman, Mubdi;Murray, Norman;Hafen, Zachary;Faucher;Stern, Jonathan;Hummels, Cameron B;Hopkins, Philip F;El;Kereš, Dušan
• 通讯作者: Kereš, Dušan

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: 2023-07
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Mercedes;Anglés;Hayward, Christopher C.;Cochrane, Rachel K.;Terrazas, Bryan A.;Wellons, Sarah;Richings, Alexander J.;Faucher;Moreno, Jorge;Su, Kung Yi;et al
• 通讯作者: et al