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

• 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

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.

第一部分超大质量黑洞(BHS)在附近大质量星系的中心很常见，来自吸积的BHS的能量可能在星系性质随时间的变化中起着重要作用。然而，关于活动星系核(AGN)的燃料和反馈机制，基本的问题仍然存在。首先，尽管进行了数十年的研究，我们仍然不知道是否需要星系的重大合并来为最明亮的活动星系核提供燃料。另一方面，我们还没有完全将活动星系核的聚集强度作为光度、遮蔽度或选择方法的函数进行映射。PIS将使用附近的活动星系核(AGN)来研究它们的性质以及它们所在的星系的性质。第二部分，PIS建议将全天空宽视场红外巡天探测器天文台(WISE)的观测与XMM-牛顿数据相结合，在200平方度的天空中选择大约10,000个最明亮的活动星系核(AGN)和Z1。由于HyperSuPrime相机调查(HSC)提供的深度和高分辨率成像，PI将提取对星系团属性、凸起部分和合并部分的前所未有的限制，以了解活动星系核在星系属性随时间变化中所起的作用。PIS还建议加强他们的HyperSuPrime相机暑期班，为下一代研究人员为大调查时代做好准备。