Supermassive Black Holes in Galactic Nuclei

星系核中的超大质量黑洞

• 批准号: 9313620
• 负责人: Bohdan Paczynski
• 金额: $ 29.25万
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-12-15 至 1997-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9313620&HistoricalAwards=false
• 关键词: Supermassive; Black; Holes; Galactic; Nuclei

9313620 Paczynski This research will be devoted to a theoretical search for signatures of supermassive black holes in active (AGN) and inactive (IGN) galactic nuclei. In spite of decades of considerable effort no firm proof is available for the presence of supermassive black holes though very few astrophysicists doubt their existence. The work on AGNs will concentrate on various effects of gravitational microlensing of the optical and X-ray emission from the select group of quadruply macro-lensed quasars, line the "Einstein cross" and the "clover leaf." Gravitational microlensing offers a possibility to study the source structure on the smallest scale the structure exists, all the way down to the Schwarzschield radius of a black hole. The primary goal will be to find a way to prove or disprove the presence of supermassive black holes in AGNs by finding what effects the finest space structure present in the source may have on the observed brightness variability, and how to detect the presence or absence of thick accretion disks formed from stars disrupted by the supermassive black holes. The primary goal will be to find if the presence or absence of evidence for star disruption and accretion can be used as evidence for or against the presence of supermassive black holes in IGNs. The Principal Investigator is regarded as an outstanding theoretical astrophysicist. ***

小行星9313620 这项研究将致力于在理论上寻找活动星系核（AGN）和非活动星系核（IGN）中超大质量黑洞的特征。 尽管经过几十年的努力，仍然没有确凿的证据证明超大质量黑洞的存在，尽管很少有天体物理学家怀疑它们的存在。 活动星系核的研究工作将集中在引力微透镜对来自四重宏观透镜类星体、“爱因斯坦十字”和“三叶草叶”的光学和X射线辐射的各种影响。“引力微透镜提供了一种可能性，可以在结构存在的最小尺度上研究源结构，一直到黑洞的施瓦茨费尔德半径。 主要目标将是找到一种方法来证明或反驳超大质量黑洞在AGN中的存在，通过发现源中存在的最细微的空间结构可能对观测到的亮度变化产生什么影响，以及如何检测是否存在由超大质量黑洞破坏的恒星形成的厚吸积盘。 主要的目标将是发现是否存在或不存在星星破裂和吸积的证据可以作为证据支持或反对在IGN中存在超大质量黑洞。 首席研究员被认为是一位杰出的理论天体物理学家。 ***