Collaborative Research: GOing GREEN at High Resolution - Spatially Deconstructing Environmental Quenching over 9 Billion Years

合作研究：以高分辨率走向绿色——空间解构超过 90 亿年的环境淬火

• 批准号: 2206473
• 负责人: Gregory Rudnick
• 金额: $ 45.19万
• 依托单位: University of Kansas Center for Research Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-10-01 至 2025-09-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2206473&HistoricalAwards=false
• 关键词: Collaborative; Research; GOing; GREEN; Resolution

Principal Investigators (PIs) Rudnick and Wilson are investigating how star formation is suppressed (quenched) in galaxies residing in distant massive clusters. The team will apply new analysis techniques to images from The Gemini Observations of Galaxies in Rich Early ENvironments (GOGREEN) Survey. By correcting for the blurring effect of the earth’s atmosphere the new images will be sharp enough to see if galaxies quench from the inside-out, outside-in, or everywhere simultaneously, and how this depends on the location of the galaxy (near a cluster center or in the outskirts). PI Wilson will develop and host astronomy workshops at the California School for the Deaf, Riverside, emphasizing senses other than hearing e.g., “Smelling the Universe” and “Touching the Universe.” PI Rudnick will continue his year-long high school research program that includes a capstone mini-symposium at the University of Kansas.The team will use the Finite-Resolution Deconvolution (Firedec) code to robustly increase the resolution of their sub-arcsecond ground-based images by a factor of approximately 2.5 without requiring any morphological priors. They will use the resulting high resolution multi-color GOGREEN images to identify which regions of each galaxy have colors consistent with quenching, thus determining the mode (inside-out, outside-in, or everywhere simultaneously), and how this depends on environment and time since entering a cluster. The team will also measure the stellar mass profiles of galaxies identified as transitioning from star forming to passive to determine how the distribution of stellar mass within galaxies, and hence their morphology, changes as star formation quenches. All data products will be made publicly available.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.

主要研究员（PI）鲁德尼克和威尔逊正在研究如何星星的形成是抑制（淬火）在星系居住在遥远的大规模集群。 该团队将应用新的分析技术，从丰富的早期环境（GOGREEN）调查的伽利略双子座观测图像。通过校正地球大气层的模糊效应，新的图像将足够清晰，可以看到星系是从内向外、从外向内还是同时在任何地方熄灭，以及这如何取决于星系的位置（靠近星系团中心还是在外围）。PI Wilson将在滨江的加州聋人学校开发和举办天文学研讨会，强调听觉以外的感官，例如，“闻宇宙”和“触摸宇宙”。PI Rudnick将继续他为期一年的高中研究计划，其中包括在堪萨斯大学的一个顶点小型研讨会。该团队将使用高分辨率反卷积（Firedec）代码，在不需要任何形态先验的情况下，将其亚弧秒地基图像的分辨率提高约2.5倍。他们将使用由此产生的高分辨率多色GOGREEN图像来识别每个星系的哪些区域具有与猝灭一致的颜色，从而确定模式（由内而外，由外而内，或同时在任何地方），以及这如何取决于环境和进入星团后的时间。该团队还将测量被确定为从星星形成过渡到被动的星系的恒星质量分布，以确定星系内恒星质量的分布以及它们的形态如何随着星星形成的淬灭而变化。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

When the well runs dry: modelling environmental quenching of high-mass satellites in massive clusters at z ≳ 1

当井干涸时：对 z ≤ 1 处大质量卫星的环境淬灭进行建模

• DOI: 10.1093/mnras/stad2995
• 发表时间: 2023
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Baxter, Devontae C.;Cooper, M. C.;Balogh, Michael L.;Rudnick, Gregory H.;De Lucia, Gabriella;Demarco, Ricardo;Finoguenov, Alexis;Forrest, Ben;Muzzin, Adam;Reeves, Andrew M. M.
• 通讯作者: Reeves, Andrew M. M.

The stellar mass function of quiescent galaxies in 2 < z < 2.5 protoclusters

2 < z < 2.5 原星系团中静止星系的恒星质量函数

• DOI: 10.1093/mnras/stad3751
• 发表时间: 2023
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Edward, Adit H.;Balogh, Michael L.;Bahé, Yannick M.;Cooper, M. C.;Hatch, Nina A.;Marchioni, Justin;Muzzin, Adam;Noble, Allison;Rudnick, Gregory H.;Vulcani, Benedetta
• 通讯作者: Vulcani, Benedetta