The Atacama Cosmology Telescope: searching for cracks in the Lambda Cold Dark Matter model

阿塔卡马宇宙学望远镜：寻找 Lambda 冷暗物质模型中的裂缝

• 批准号: 2108126
• 负责人: Jo Dunkley
• 金额: $ 59.65万
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-08-01 至 2024-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2108126&HistoricalAwards=false
• 关键词: Atacama; Cosmology; Telescope; searching; cracks

The Planck satellite was a mission that mapped the Cosmic Microwave Background (CMB), the echo from the Big Bang, in unprecedented detail between 2009 and 2014. Now, with new data from the Atacama Cosmology Telescope in Chile, this project will be able to improve upon the measurements of anisotropies in the CMB. This will allow the team to improve upon cosmological models by determining better estimates for the amount of clustering of galaxies in the universe. The project includes delivery of new data products and associated software for the broader astronomical community. The team will be built with a focus on diversification of the graduate student body, with an emphasis on training and supporting women in order to promote female role models. The next generation of scientists will be engaged via the participation in the Skype-A-Scientist program in public schools, with the principal investigator providing informal training in science communication to junior group members. This project will demonstrate whether the Lambda-Cold-Dark-Matter (LCDM) model sufficiently describes the new CMB data from the Atacama Cosmology Telescope. The new measurements of the polarization power spectrum will reveal whether any significant tensions exist within early-universe data for the LCDM model. By applying techniques from CMB power spectrum analysis the project will demonstrate how well the cosmological model fits a later-universe probe: clusters detected via the Sunyaev Zel'dovich effect, with masses estimated by cross-correlating with gravitational lensing from the Dark Energy Survey. The broader impacts of this proposal are focused on diversifying the graduate student body through work with the Simons NSBP Scholars' Program. Training and support of junior women and will help promote female role models by participation in public lectures and engagement with the media. The team will seek to enthuse the next generation of scientists via the group's participation in Skype-A-Scientist in public schools. An additional goal is to educate a more diverse group of students through participation in the Prison Teaching Initiative, teaching math and physics to incarcerated students in New Jersey.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.

普朗克卫星是一项任务，该任务绘制了宇宙微波背景（CMB），这是2009年至2014年之间的史无前例的大爆炸回声。改进CMB中各向异性的测量。这将使团队通过确定宇宙中星系聚类量的更好估计来改善宇宙学模型。该项目包括为更广泛的天文社区提供新的数据产品和相关软件。该团队将建立在研究生团体的多样化上，重点是培训和支持女性以促进女性榜样。下一代科学家将通过参加公立学校的Skype-A-Scientist计划参与，主要研究人员向初级小组成员提供科学沟通的非正式培训。该项目将证明Lambda-Cold-Dark-Matter（LCDM）模型是否充分描述了Atacama Cosmology望远镜的新CMB数据。极化功率谱的新测量结果将揭示LCDM模型早期数据中是否存在任何明显的紧张局势。通过应用CMB功率谱分析的技术，该项目将证明宇宙学模型如何拟合以后的探针：通过Sunyaev Zel'Dovich效应检测到的群集，并通过与深色能量调查中的重力透镜进行交叉估计。该建议的更广泛的影响着重于通过与Simons NSBP学者计划合作来使研究生团体多样化。 培训和支持初级妇女，将通过参与公开讲座和与媒体的参与来帮助促进女性榜样。该小组将通过该小组参加公立学校的Skype-A-Scientist来激发下一代科学家。另一个目标是通过参与监狱教学计划，向新泽西州监禁的学生教授数学和物理学来教育更多样化的学生。该奖项反映了NSF的法定使命，并被认为是值得通过基金会的知识分子进行评估的支持。优点和更广泛的影响审查标准。

项目成果

Atacama Cosmology Telescope: Constraints on prerecombination early dark energy

阿塔卡马宇宙学望远镜：预重组早期暗能量的限制

• DOI: 10.1103/physrevd.105.123536
• 发表时间: 2022
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Hill, J. Colin;Calabrese, Erminia;Aiola, Simone;Battaglia, Nicholas;Bolliet, Boris;Choi, Steve K.;Devlin, Mark J.;Duivenvoorden, Adriaan J.;Dunkley, Jo;Ferraro, Simone
• 通讯作者: Ferraro, Simone

The Atacama Cosmology Telescope: measurement and analysis of 1D beams for DR4

阿塔卡马宇宙学望远镜：DR4 一维光束的测量和分析

• DOI: 10.1088/1475-7516/2022/05/044
• 发表时间: 2022
• 期刊: Journal of Cosmology and Astroparticle Physics
• 影响因子: 6.4
• 作者: Lungu, Marius;Storer, Emilie R.;Hasselfield, Matthew;Duivenvoorden, Adriaan J.;Calabrese, Erminia;Chesmore, Grace E.;Choi, Steve K.;Dunkley, Jo;Dünner, Rolando;Gallardo, Patricio A.
• 通讯作者: Gallardo, Patricio A.

The Atacama Cosmology Telescope: limits on dark matter-baryon interactions from DR4 power spectra

阿塔卡马宇宙学望远镜：DR4 功率谱对暗物质-重子相互作用的限制

• DOI: 10.1088/1475-7516/2023/02/046
• 发表时间: 2023
• 期刊: Journal of Cosmology and Astroparticle Physics
• 影响因子: 6.4
• 作者: Li, Zack;An, Rui;Gluscevic, Vera;Boddy, Kimberly K.;Bond, J. Richard;Calabrese, Erminia;Dunkley, Jo;Gallardo, Patricio A.;Guan, Yilun;Hincks, Adam
• 通讯作者: Hincks, Adam