Collaborative Research: The Massive and Distant Clusters of WISE Survey 2

协作研究：WISE 调查 2 中大规模且遥远的集群

• 批准号: 2108367
• 负责人: Anthony Gonzalez
• 金额: $ 23.11万
• 依托单位: University of Florida
• 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: 2021-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2108367&HistoricalAwards=false
• 关键词: Collaborative; Research; Massive; Distant; Clusters

This project is a collaborative project between the University of Florida and the University of Missouri Kansas City to search for galaxy clusters and protoclusters in the distant Universe, back to the time when the first clusters were forming. The survey data will allow for detailed studies of the most massive galaxies in the universe at the time when they were rapidly growing. The program is based upon catalogs created by NASA’s Wide-field Infrared Survey Explorer (WISE), a space-based observatory that performed an all-sky survey in the infrared. Combining the WISE data with catalogs from the Dark Energy Camera (DECam) on the Blanco telescope in Chile will allow the team to determine where the first clusters are forming in a 3D volume of the universe. The technique has already been tested and has correctly identified known clusters from the IRAC Distant Cluster Survey. The project also includes a joint virtual public viewing night program at both institutions using remote observing from the Rosemary Hill Observatory. This plan enables public engagement during the pandemic and will expand the reach of public observing programs in both states post-covid. This project will result in a program to detect and characterize the massive galaxy cluster population at 0.5z2 over 10,480 sq. degrees. The proposed program, the Massive and Distant Clusters of WISE Survey 2 (MaDCoWS2) builds upon a successful previous cluster survey by the same team, which focused upon galaxy clusters at z~1. The cluster sample resulting from the MaDCoWS2 program will enable detailed investigations of the evolution of massive galaxies in the most overdense environments since the epoch of peak star formation and rapid mass assembly. By extending the redshift baseline to z = 2, the project will reach into the era of protoclusters, in which the first massive clusters are just forming and embedded in larger scale protocluster environments comprised of dense filaments and less massive groups that will be accreted by the central clusters at later times. The foundation for this program is CatWISE, a program to create deep catalogs exploiting the full depth of NASA Wide-field Infrared Survey Explorer (WISE) data at 3.4 and 4.6 microns. A combination of optical photometry will be used from large Dark Energy Camera (DECam) data and WISE photometry from the CatWISE2020 catalog to compute Bayesian photometric redshift probability distributions for the CatWISE2020 galaxy sample, and then the PZWav code will be used to detect cluster scale overdensities within a 3D data cube. The PIs will foster the career development of the students working on this project. This research will be complemented by the outreach programs. The team will initiate and run a joint virtual public night program at their institutions using remote observing from the Rosemary Hill Observatory. This plan enables public engagement during the pandemic and will expand the reach of public observing programs in both states post-covid.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.

该项目是佛罗里达大学和密苏里大学堪萨斯城之间的一个合作项目，在遥远的宇宙中搜索了Galaxy群集和原始群体，直到第一个群集形成的时间。调查数据将允许对宇宙迅速生长的宇宙中最庞大的星系进行详细研究。该计划基于NASA的广阔红外调查探险家（WISE）创建的目录，这是一个基于空间的观察结果，在红外线中进行了全天候的调查。将明智的数据与智利Blanco望远镜上的深色能量摄像头（DECAM）的目录相结合，将使团队能够确定第一个簇在宇宙的3D体积中形成的位置。该技术已经进行了测试，并已正确识别了IRAC远处群集调查中的已知簇。该项目还使用罗斯玛丽山天文台的远程观察在两个机构中进行了一个联合的虚拟公共观看夜计划。该计划使大流行期间的公众参与，并将扩大两国公共观察计划的影响力。该项目将导致一个程序，以检测和表征10,480平方米的大规模星系簇种群为0.5z2。拟议的计划，Wise Survey 2（MADCOWS2）的大规模和遥远的群集建立在同一团队先前的集群调查的基础上，该团队的重点是Z〜1的Galaxy簇。 MADCOWS2程序产生的群集样本将详细研究自峰星形成和快速质量组装时期以来最过大的环境中大型星系的演变。通过将红移基线扩展到Z = 2，该项目将到达原始群体时代，在该时代，第一个巨大的群集只是在大规模的原始群集环境中形成并嵌入了密集的细丝和较少群体的大规模原始环境中，这些环境将在以后被中心簇所接受。该计划的基础是Catwise，该计划旨在创建深层目录，利用3.4和4.6微米的NASA广场红外调查探险家（WISE）数据的完整深度。光学光度法的组合将用于大型暗能量摄像机（DECAM）数据和从Catwise2020目录中的明智的光度法，以计算Catwise2020 Galaxy样品的贝叶斯光度计红移概率分布，然后将使用PZWAV代码来检测3D数据Cube中的集群量表过高。 PI将促进从事该项目的学生的职业发展。这项研究将由外展计划完成。该团队将使用Rosemary Hill天文台的远程观察员在其机构中启动并开展一个联合的虚拟公共夜间计划。该计划使公众参与大流行期间，并将扩大两国公共观察计划的影响力。该奖项反映了NSF的法定任务，并使用基金会的知识分子优点和更广泛的审查标准，通过评估被认为是珍贵的支持。