Possibility of a Starburst Origin for Low-Luminosity Active Galactic Nuclei

低光度活动星系核星暴起源的可能性

• 批准号: 9003829
• 负责人: Alexei Filippenko
• 金额: $ 4.97万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-03-01 至 1991-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9003829&HistoricalAwards=false
• 关键词: Possibility; Starburst; Origin; Low; Luminosity

The nuclei of many galaxies show evidence of mild activity, such as very broad (but weak) emission due to hydrogen. These are generally thought to be scaled-down versions of luminous active galactic nuclei (AGNs), in which matter is probably being accret- ed by a massive black hole. During the past few years, however, a few investigators have speculated that the properties of low- luminosity AGNs might instead be explained by processes related to central bursts of star formation. Although this is not a popular idea, recent evidence from observations of supernovae lend some support to this idea. This research will explore this model from both theoretical and observational approaches. Dr. Filippenko is an extremely active young astronomer, who has most recently been much concerned with the design and utilization of automated observatories in the study of active galactic nuclei and extragalactic supernovae. He currently holds a Presidential Young Investigator award.

许多星系的核显示出轻微活动的证据，比如氢发出的非常宽（但很弱）的辐射。它们通常被认为是发光的活动星系核（agn）的缩小版，其中的物质可能被一个巨大的黑洞吸积。然而，在过去的几年里，一些研究人员推测，低光度agn的性质可能可以用与恒星形成中心爆发有关的过程来解释。虽然这不是一个流行的观点，但最近对超新星的观测证据为这一观点提供了一些支持。本研究将从理论和观测两方面探讨该模型。Filippenko博士是一位非常活跃的年轻天文学家，他最近非常关注自动观测站的设计和利用，以研究活动星系核和河外超新星。他目前拥有总统青年研究员奖。