Simulating the Extraordinary Life and Death of High-Redshift Galaxies

模拟高红移星系的非凡生与死

• 批准号: 2001905
• 负责人: Sarah Wellons
• 金额: $ 30万
• 依托单位: Wellons Sarah A
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-09-01 至 2022-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2001905&HistoricalAwards=false
• 关键词: Simulating; Extraordinary; Life; Death; Redshift

Sarah Wellons is awarded an NSF Astronomy and Astrophysics Postdoctoral Fellowship to conduct a program of research and education at Northwestern University. She will perform large-scale computer simulations to study the lifecycle and properties of massive distant galaxies in the early Universe and to understand how they differ from nearby galaxies. Results from this study will allow astronomers to accurately interpret observations of early galaxies. Along with this research, Wellons will develop an astronomy course for incarcerated students.Wellons will employ a combination of large-volume and as zoom-in simulations to investigate key aspects of massive galaxies at high redshifts ( 2). The simulations will explore mechanisms that quench star formation, connect physical processes at large and small size scales, and govern the kinematic evolution of massive galaxies through cosmic time. This work will provide theoretical context for puzzling observations of massive quiescent galaxies at high redshifts, as well as set expectations for future observations of increasingly distant galaxies.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.

Sarah Wellons被授予NSF天文学和天体物理学博士后奖学金，在西北大学进行研究和教育计划。 她将进行大规模的计算机模拟，以研究早期宇宙中大规模遥远星系的生命周期和性质，并了解它们与附近星系的不同之处。 这项研究的结果将使天文学家能够准确地解释早期星系的观测结果。 沿着这项研究，Wellons将为被监禁的学生开发一门天文学课程。Wellons将采用大体积和放大模拟相结合的方法来研究高红移的大质量星系的关键方面（2）。 这些模拟将探索淬灭星星形成的机制，连接大小尺度的物理过程，并通过宇宙时间管理大质量星系的运动学演化。 这项工作将为在高红移下对大质量静止星系的令人困惑的观测提供理论背景，并为未来对越来越遥远的星系的观测设定预期。该奖项反映了NSF的法定使命，并被认为值得通过使用基金会的智力价值和更广泛的影响审查标准进行评估来支持。

项目成果

Running late: testing delayed supermassive black hole growth models against the quasar luminosity function

迟到：根据类星体光度函数测试延迟的超大质量黑洞生长模型

• DOI: 10.1093/mnras/stac398
• 发表时间: 2022
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Tillman, Megan Taylor;Wellons, Sarah;Faucher-Giguère, Claude-André;Kelley, Luke Zoltan;Anglés-Alcázar, Daniel
• 通讯作者: Anglés-Alcázar, Daniel

Which AGN jets quench star formation in massive galaxies?

• DOI: 10.1093/mnras/stab2021
• 发表时间: 2021-02
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Kung-Yi Su;P. Hopkins;G. Bryan;R. Somerville;C. Hayward;D. Angl'es-Alc'azar;C. Faucher-Giguère;S. Wellons;J. Stern;Bryan A. Terrazas;T. K. Chan;Matthew E. Orr;C. Hummels;R. Feldmann;D. Kerevs

Recent Star Formation in a Massive Slowly Quenched Lensed Quiescent Galaxy at z = 1.88

• DOI: 10.3847/2041-8213/abd416
• 发表时间: 2020-12
• 期刊: The Astrophysical Journal Letters
• 作者: Mohammad Akhshik;K. Whitaker;J. Leja;G. Mahler;K. Sharon;G. Brammer;S. Toft;R. Bezanson;A. Man;E. Nelson;C. Pacifici;S. Wellons;C. Williams

Measuring dynamical masses from gas kinematics in simulated high-redshift galaxies

• DOI: 10.1093/mnras/staa2229
• 发表时间: 2019-08
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: S. Wellons;C. Faucher-Giguère;D. Anglés-Alcázar;C. Hayward;R. Feldmann;P. Hopkins;D. Keres̆

Pressure balance in the multiphase ISM of cosmologically simulated disc galaxies

宇宙学模拟盘状星系多相ISM中的压力平衡

• DOI: 10.1093/mnras/staa2578
• 发表时间: 2020
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Gurvich, Alexander B;Faucher-Giguère, Claude-André;Richings, Alexander J;Hopkins, Philip F;Grudić, Michael Y;Hafen, Zachary;Wellons, Sarah;Stern, Jonathan;Quataert, Eliot;Chan, T K
• 通讯作者: Chan, T K