A 3-D View into the Connection and History of Galaxies and Active Galactic Nuclei

星系和活动星系核的联系和历史的 3D 视图

• 批准号: 1616101
• 负责人: Marsha Wolf
• 金额: $ 60.4万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-09-01 至 2021-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1616101&HistoricalAwards=false
• 关键词: View; into; Connection; History; Galaxies

Part 1This proposal attempts to probe past Active Galactic Nuclei (AGN) activity in galaxies. Even if the construction of complete histories of both star formation and AGN are not possible for individual galaxies, the large statistical sample will place important constraints on the changing (or lack thereof) history of galaxies and their AGN. The 3-dimensional galaxy information obtained from the Sloan Digital Sky Survey (SDSS) IV's Mapping Nearby Galaxies at APO (MaNGA) project will vastly increase our understanding of the interplay of AGN and galaxies.Part 2The goal of this proposal is to better understand the relationship of central supermassive black holes (SMBHs) and their host galaxies through the SMBHs active phases. This analysis requires three key elements: 1) the ability to trace a galaxy's history; 2) the ability to trace an Active Galactic Nuclei's (AGN's) history; and 3) a spatially resolved view of these systems, since not all relevant information about galaxies (extended vs. centrally concentrated star formation, large-scale outflows of gas, motions of stars and gas, ionization regions, etc.) or AGN (jets, radio lobes) is contained in the central core. Fulfilling all three elements for more than a handful of objects is possible only now through the confluence of two new large surveys: the Sloan Digital Sky Survey (SDSS) IV's Mapping Nearby Galaxies at APO (MaNGA) project for spatially resolved properties of 10,000 galaxies and the Tata Giant Metrewave Radio Telescope Sky Survey (TGSS) to provide low frequency radio data covering the entire MaNGA survey region that will reveal past radio AGN activity. By combining data from these surveys and adding state-of-the-art simulations of the radio AGN, we will be able to place statistical constraints on the time histories of galaxies and their AGN. Specifically, the PIs will investigate the following overarching questions: (1) Do the star formation histories of galaxies, and their AGN activity histories, suggest they are connected and change together over time? (2) Do the spatially resolved galaxy properties show signs of AGN feedback leading to the stopping of star formation in the galaxies?

第一部分本计划试图探测星系中活动星系核（AGN）的活动。即使构建完整的历史的星星形成和活动星系核是不可能的个别星系，大的统计样本将放置重要的约束的变化（或缺乏）的历史的星系和它们的活动星系核。Sloan Digital Sky Survey（SDSS）IV的MANGA（Mapping Nearby Galerkin at APO）项目所获得的三维星系信息将极大地增加我们对活动星系核与星系相互作用的理解。第二部分本计划的目标是通过中心超大质量黑洞（SMBHs）的活动相更好地理解SMBHs与其宿主星系的关系。这种分析需要三个关键要素：1）追踪星系历史的能力; 2）追踪活动星系核（AGN）历史的能力; 3）这些系统的空间分辨视图，因为并非所有关于星系的相关信息（扩展与集中的星星形成，大规模气体流出，恒星和气体的运动，电离区域等）。或AGN（喷流，射电瓣）包含在中央核心。现在只有通过两项新的大型调查的结合，才有可能为少数几个物体满足所有三个要素：斯隆数字巡天（SDSS）IV的APO附近星系测绘（MaNGA）项目的空间分辨率为10，000个星系和塔塔巨型米波射电望远镜巡天（TGSS）提供覆盖整个MaNGA调查区域的低频无线电数据，以揭示过去的无线电活动星系核活动。通过结合这些调查的数据，并添加最先进的无线电活动星系核的模拟，我们将能够对星系及其活动星系核的时间历史进行统计约束。具体来说，PI将调查以下首要问题：（1）星系的星星形成历史，以及它们的活动星系核活动历史，是否表明它们是相互联系的，并随着时间的推移而一起变化？(2)空间分辨的星系特性是否显示出活动星系核反馈导致星系中星星形成停止的迹象？