Physics of the Central Engines of Active Galactic Nuclei

活动星系核中央引擎的物理学

• 批准号: 8816140
• 负责人: Mitchell Begelman
• 金额: $ 30.1万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-03-01 至 1993-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8816140&HistoricalAwards=false
• 关键词: Physics; Central; Engines; Active; Galactic

Strong arguments support the view that interactions of matter with a supermassive black hole give rise to the diverse phenomena associated with active galactic nuclei (AGNs). However, the details of these interactions are poorly understood. Theoretical research aimed at augmenting our understanding of the microphysics of accretion onto black holes, jet formation, and the processed responsible for spectrum formation in AGNs will be carried out. Using analytic and numerical techniques, the following will be studied: 1) the thermal states of gas in the central engines of AGNs and their effects on the production of AGN spectra; 2) the roles of electron-positron pair creation and other high energy processes in the production of AGN spectra; 3) the effects of radiation drag on the hydromagnetic acceleration of relativistic jets and winds; and 4) the radiative signatures of jet formation. Through carrying AGNs, and facilitate the interpretation of observations.

强有力的论点支持这样的观点，即物质与超质量黑洞的相互作用会导致与活性银河核（AGN）相关的各种现象。 但是，这些相互作用的细节知之甚少。 理论研究旨在扩大我们对黑洞，喷气形成和负责AGN中频谱形成的加工的增生物理学的理解。 使用分析和数值技术，将研究以下内容：1）AGN中央引擎中气体的热状态及其对AGN光谱产生的影响； 2）电子 - 峰值对产生和其他高能量过程在AGN光谱生产中的作用； 3）辐射阻力对相对论喷气机和风的氢磁加速度的影响； 4）射流形成的辐射特征。 通过携带AGN，并促进观察的解释。