Observations to Constrain the Origins of Hot Gas Between Galaxies and Clusters of Galaxies Across Cosmic Time

宇宙时间范围内星系和星系团之间热气体起源的观测

• 批准号: 1910021
• 负责人: Nicholas Battaglia
• 金额: $ 35.31万
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-09-01 至 2023-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1910021&HistoricalAwards=false
• 关键词: Observations; Constrain; Origins; Hot; Gas

This project addresses the question of why galaxies look the way they do throughout the history of our universe. It will focus on the warm/hot gas that surrounds galaxies and provides them with fuel to form new stars. There is only incomplete theoretical understanding of the physical processes within galaxies that heat and alter this surrounding gas. This project will measure the imprint of this gas on leftover photons from the big bang which will provide new and critical information on the physics of these processes. This project will also run a pilot program to spark the interests of preschoolers in astronomy at two Agri-Business Child Development (ABCD) centers. The ABCD program offers comprehensive early childhood education to low-income families where both parents are agriculturally employed. This project will constrain feedback processes in galaxies using cross-correlation measurements from large-scale structure surveys and cosmic microwave background (CMB) experiments. Feedback processes play an important role in theories of galaxy formation and evolution. They are thought to regulate star formation in galaxies and affect the large-scale distribution of matter in our universe. An essential aspect of feedback not well understood is its impact on the reservoirs of warm/hot ionized gas that surrounds galaxies, the circumgalactic medium (CGM), which provides galaxies with new or recycled material to form new generations of stars. This project uses observations of additional fluctuations in the CMB (specifically the Sunyaev-Zeldovich effects) to probe the thermodynamic history of the CGM and provide essential information on the role of feedback in galaxy formation and evolution.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.

该项目解决了为什么星系在整个宇宙历史中看起来都是这样的问题。 它将聚焦于星系周围的暖/热气体，并为它们提供形成新恒星的燃料。对于星系内加热和改变周围气体的物理过程，只有不完整的理论理解。该项目将测量这种气体在大爆炸剩余光子上的印记，这将为这些过程的物理过程提供新的关键信息。该项目还将在两个农业企业儿童发展 (ABCD) 中心开展试点项目，激发学龄前儿童对天文学的兴趣。 ABCD 计划为父母均从事农业工作的低收入家庭提供全面的幼儿教育。 该项目将利用大规模结构调查和宇宙微波背景（CMB）实验的互相关测量来限制星系中的反馈过程。反馈过程在星系形成和演化理论中发挥着重要作用。它们被认为可以调节星系中恒星的形成，并影响宇宙中物质的大规模分布。反馈的一个重要方面尚未得到很好的理解，那就是它对星系周围的暖/热电离气体库的影响，即环星系介质（CGM），它为星系提供新的或回收的材料以形成新一代的恒星。该项目利用对 CMB 中额外波动（特别是 Sunyaev-Zeldovich 效应）的观测来探索 CGM 的热力学历史，并提供有关反馈在星系形成和演化中的作用的重要信息。该奖项反映了 NSF 的法定使命，并已被通过使用基金会的智力优点和更广泛的影响审查标准进行评估，认为值得支持。

项目成果

Atacama Cosmology Telescope: Modeling the gas thermodynamics in BOSS CMASS galaxies from kinematic and thermal Sunyaev-Zel’dovich measurements

阿塔卡马宇宙学望远镜：根据运动学和热学 Sunyaev-Zelâdovich 测量对 BOSS CMASS 星系中的气体热力学进行建模

• DOI: 10.1103/physrevd.103.063514
• 发表时间: 2020-09-11
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: S. Amodeo;N. Battaglia;E. Schaan;S. Ferraro;E. Moser;S. Aiola;J. Austermann;J. Beall;R. Bean;D. Becker;R. Bond;E. Calabrese;Victoria Calafut;Steve K. Choi;E. Denison;M. Devlin;S. Duff;A. Duivenvoorden;J. Dunkley;R. Dunner;P. Gallardo;K. Hall;Dongwon Han;J. Hill;G. Hilton;M. Hilton;R. Hlovzek;J. Hubmayr;K. Huffenberger;J. Hughes;B. Koopman;Am;a Macinnis;a;J. McMahon;M. Madhavacheril;K. Moodley;T. Mroczkowski;S. Naess;F. Nati;L. Newburgh;M. Niemack;L. Page;B. Partridge;A. Schillaci;N. Sehgal;C. Sif'on;D. Spergel;S. Staggs;E. Storer;J. Ullom;L. Vale;A. V. Engelen;J. Lanen;E. Vavagiakis;Edward J. Wollack;Zhilei Xu
• 通讯作者: Zhilei Xu

Erratum: Atacama Cosmology Telescope: Modeling the gas thermodynamics in BOSS CMASS galaxies from kinematic and thermal Sunyaev-Zel’dovich measurements [Phys. Rev. D 103 , 063514 (2021)]

勘误表：阿塔卡马宇宙学望远镜：根据运动学和热学 Sunyaev-Zelâdovich 测量对 BOSS CMASS 星系中的气体热力学进行建模 [Phys.

• DOI: 10.1103/physrevd.107.049903
• 发表时间: 2023-02
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Amodeo, Stefania;Battaglia, Nicholas;Schaan, Emmanuel;Ferraro, Simone;Moser, Emily;Aiola, Simone;Austermann, Jason E.;Beall, James A.;Bean, Rachel;Becker, Daniel T.;et al
• 通讯作者: et al

The Circumgalactic Medium from the CAMELS Simulations: Forecasting Constraints on Feedback Processes from Future Sunyaev–Zeldovich Observations

CAMELS 模拟中的环银河系介质：未来 Sunyaev 和 Zeldovich 观测对反馈过程的预测约束

• DOI: 10.3847/1538-4357/ac70c6
• 发表时间: 2022-01-07
• 期刊: The Astrophysical Journal
• 作者: E. Moser;N. Battaglia;D. Nagai;E. Lau;Luis Fern;o Machado Poletti Valle;o;F. Villaescusa;S. Amodeo;D. Anglés;G. Bryan;R. Davé;L. Hernquist;M. Vogelsberger
• 通讯作者: M. Vogelsberger

Probing the Circumgalactic Medium with Cosmic Microwave Background Polarization Statistical Anisotropy

用宇宙微波背景偏振统计各向异性探测环星系介质

• DOI: 10.3847/1538-4357/acd194
• 发表时间: 2023-07
• 期刊: The Astrophysical Journal
• 作者: Roy, Anirban;van Engelen, Alexander;Gluscevic, Vera;Battaglia, Nicholas
• 通讯作者: Battaglia, Nicholas

The Impacts of Modeling Choices on the Inference of Circumgalactic Medium Properties from Sunyaev–Zeldovich Observations

建模选择对根据 Sunyaev 和 Zeldovich 观测推断绕银河系介质特性的影响

• DOI: 10.3847/1538-4357/ac0cea
• 发表时间: 2021-09
• 期刊: The Astrophysical Journal
• 作者: Moser, Emily;Amodeo, Stefania;Battaglia, Nicholas;Alvarez, Marcelo A.;Ferraro, Simone;Schaan, Emmanuel
• 通讯作者: Schaan, Emmanuel