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The Importance of Merging and Changes Over Time in Luminous Quasars Selected by the Wide-field Infrared Survey Explorer Observatory

广域红外巡天探索者天文台选择的发光类星体合并和随时间变化的重要性

基本信息

批准号：
1613744
负责人：
Jenny Greene
金额：
$ 32.58万
依托单位：
Princeton University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2016
资助国家：
美国
起止时间：
2016-09-01 至 2019-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1613744&HistoricalAwards=false
关键词：
Importance Merging Changes Over Time

项目摘要

Part 1Supermassive black holes (BHs) are common in the centers of nearby massive galaxies, and energy from accreting BHs likely plays an important role in changes of galaxy properties over time. Nevertheless, basic questions remain about the fueling and feedback mechanisms in Active Galactic Nuclei (AGN). For one, we still do not know whether major mergers of galaxies are required to fuel the most luminous AGN, despite decades of research. For another, we have not yet fully mapped the clustering strengths of AGN as a function of luminosity, obscuration, or selection method. The PIs will use nearby AGN to study their properties and the properties of the galaxies within which they reside.Part 2The PIs propose to combine the all-sky Wide-field Infrared Survey Explorer Observatory (WISE) survey with XMM-Newton data to select ~10,000 of the most luminous active galactic nuclei (AGN) with z1 over 200 square degrees of sky. Thanks to the deep and high-resolution imaging available from the HyperSuprime Camera Survey (HSC), the PIs will extract unprecedented constraints on the clustering properties, bulge fractions, and merger fractions, to understand the role that AGN play in changes of galaxy properties with time. The PIs also propose to strengthen their HyperSuprime Camera summer school, to prepare the next generation of researchers for the era of large surveys.

第 1 部分超大质量黑洞 (BH) 在附近大质量星系的中心很常见，吸积 BH 产生的能量可能在星系特性随时间变化的过程中发挥着重要作用。然而，关于活动星系核（AGN）的燃料和反馈机制的基本问题仍然存在。其一，尽管经过了数十年的研究，我们仍然不知道是否需要大规模的星系合并来为最明亮的活动星系核提供燃料。另一方面，我们还没有完全将 AGN 的聚类强度映射为光度、遮光度或选择方法的函数。 PI 将利用附近的 AGN 来研究它们的属性以及它们所在星系的属性。第 2 部分 PI 提议将全天空广域红外巡天探索者天文台 (WISE) 巡天与 XMM-牛顿数据相结合，以选择大约 10,000 个 z1 超过 200 平方度天空的最亮的活动星系核 (AGN)。借助 HyperSuprime 相机巡天 (HSC) 提供的深度和高分辨率成像，PI 将提取对聚类特性、核球部分和合并部分前所未有的约束，以了解 AGN 在星系特性随时间变化中所扮演的角色。 PI 还建议加强他们的 HyperSuprime Camera 暑期学校，为大型调查时代的下一代研究人员做好准备。