Illuminating Galaxy Formation with the Atacama Cosmology Telescope

用阿塔卡马宇宙学望远镜照亮星系的形成

• 批准号: 2108536
• 负责人: James Hill
• 金额: $ 48.35万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2108536&HistoricalAwards=false
• 关键词: Illuminating; Galaxy; Formation; Atacama; Cosmology

A central goal of extragalactic astrophysics and cosmology is to find answers to questions like: How do galaxies affect their environments? What processes are responsible for shutting off star formation in galaxies? To answer these questions, this research will use a new technique to probe the ionized gas distribution in and around galaxies identified in the NSF-funded Advanced Atacama Cosmology Telescope survey and the Dark Energy Survey, resulting in an improvement of nearly two orders of magnitude over current knowledge. This will set the stage for a further significant increase in sensitivity to follow from the Simons Observatory and the NSF-funded Vera Rubin Observatory, both coming online in the early 2020s. As part of this investigation, the PI will mentor a student from the Columbia University Bridge Program, a two-year post-baccalaureate program that increases the participation of students from under-represented groups in STEM Ph.D. programs, and a summer undergraduate student through the Simons-NSBP Scholars Program, a partnership between the Simons Observatory and the National Society of Black Physicists.After several 3 to 4-sigma detections in the past decade, measurements of the kinematic Sunyaev-Zel’dovich (kSZ) signal are now set to dramatically improve in precision as a result of the NSF-funded Advanced Atacama Cosmology Telescope (ACT) survey and its overlap with large-scale galaxy surveys, particularly the Dark Energy Survey (DES). This project will develop the “projected-field” kSZ estimator, building on the PI’s recent first detection using this tool. Crucially, unlike other kSZ estimators, this approach does not require a spectroscopic redshift for each galaxy. Application of this estimator to data from ACT and DES to measure the projected-field kSZ-galaxy cross-correlation will result in ~60-sigma measurements of this quantity using data already in hand from these surveys.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.

外层状天体物理学和宇宙学的核心目标是找到问题的答案：星系如何影响其环境？哪些过程负责关闭星系中的恒星形成？为了回答这些问题，这项研究将使用一项新技术来探测NSF资助的高级Atacama宇宙学望远镜调查和黑暗能源调查中确定的星系中及其周围的电离气体分布，从而改善了近两个数量级的比当前知识。这将为Simons天文台和NSF资助的Vera Rubin天文台的敏感性进一步显着提高而奠定阶段，这些天文台都在2020年代初上网。作为这项调查的一部分，PI将指导哥伦比亚大学桥梁计划的一名学生，这是一项为期两年的课后计划，可增加来自代表性不足的smet博士学位的学生的参与。 programs, and a summer undergraduate student through the Simons-NSBP Scholars Program, a partnership between the Simons Observatory and the National Society of Black Physicists.After several 3 to 4-sigma detections in the past decade, measurements of the kinematic Sunyaev-Zel’dovich (kSZ) signal are now set to dramatically improve in precision as a result of the NSF-funded Advanced Atacama Cosmology望远镜（ACT）调查及其与大型星系调查的重叠，特别是黑暗能源调查（DES）。该项目将开发“投影场” KSZ估计器，该估计器基于PI最近使用此工具的第一个检测。至关重要的是，与其他KSZ估计器不同，这种方法不需要每个星系的光谱红移。将该估计量应用于ACT和DES的数据，以测量预计的现场KSZ-GALAXY互相关，将使用这些调查中已经提供的数据对该数量进行〜60秒的测量。该奖项反映了NSF的法定任务，并通过基金会的智力优点和广泛的影响来评估NSF的法定任务，并被认为是宝贵的支持。

项目成果

Cross-correlation of Dark Energy Survey Year 3 lensing data with ACT and Planck thermal Sunyaev-Zel’dovich effect observations. I. Measurements, systematics tests, and feedback model constraints

暗能量调查第 3 年透镜数据与 ACT 和普朗克热 Sunyaev-Zelâdovich 效应观测结果的互相关。

• DOI: 10.1103/physrevd.105.123525
• 发表时间: 2022
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Gatti, M.;Pandey, S.;Baxter, E.;Hill, J. C.;Moser, E.;Raveri, M.;Fang, X.;DeRose, J.;Giannini, G.;Doux, C.
• 通讯作者: Doux, C.

Constraining the galaxy-halo connection of infrared-selected unWISE galaxies with galaxy clustering and galaxy-CMB lensing power spectra

• DOI: 10.1103/physrevd.106.123517
• 发表时间: 2022-03
• 期刊: Physical Review D
• 影响因子: 5
• 作者: A. Kusiak;B. Bolliet;A. Krolewski;J. Hill

The SZ flux-mass ( Y – M ) relation at low-halo masses: improvements with symbolic regression and strong constraints on baryonic feedback

低晕质量下的 SZ 通量-质量 ( Y – M ) 关系：符号回归的改进和重子反馈的强约束

• DOI: 10.1093/mnras/stad1128
• 发表时间: 2023
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Wadekar, Digvijay;Thiele, Leander;Hill, J. Colin;Pandey, Shivam;Villaescusa-Navarro, Francisco;Spergel, David N.;Cranmer, Miles;Nagai, Daisuke;Anglés-Alcázar, Daniel;Ho, Shirley
• 通讯作者: Ho, Shirley

Constraining the baryon abundance with the kinematic Sunyaev-Zel’dovich effect: Projected-field detection using Planck , WMAP , and unWISE

• DOI: 10.1103/physrevd.104.043518
• 发表时间: 2021-02
• 期刊: Physical Review D
• 影响因子: 5
• 作者: A. Kusiak;B. Bolliet;S. Ferraro;J. Hill;A. Krolewski

Cross-correlation of Dark Energy Survey Year 3 lensing data with ACT and Planck thermal Sunyaev-Zel’dovich effect observations. II. Modeling and constraints on halo pressure profiles

暗能量调查第 3 年透镜数据与 ACT 和普朗克热 Sunyaev-Zelâdovich 效应观测结果的互相关。

• DOI: 10.1103/physrevd.105.123526
• 发表时间: 2022
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Pandey, S.;Gatti, M.;Baxter, E.;Hill, J. C.;Fang, X.;Doux, C.;Giannini, G.;Raveri, M.;DeRose, J.;Huang, H.
• 通讯作者: Huang, H.