CAREER: Multiwavelength Studies of the Star Formation and Accretion Histories of the Universe

职业：宇宙恒星形成和吸积历史的多波长研究

• 批准号: 0239425
• 负责人: Amy Barger
• 金额: $ 47.51万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-15 至 2008-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0239425&HistoricalAwards=false
• 关键词: CAREER; Multiwavelength; Studies; Star; Formation

AST-0239425BargerThis project intends to identify and study the sources that comprise the X-ray extragalactic background light. For the first time, a nearly complete census of soft and hard X-ray sources can now be made using images from the Chandra X-ray Observatory, and follow-up observations will be made from the ground at radio, submillimeter, infrared and optical wavelengths. Study of the supermassive black holes in the host galaxies should help to resolve one of the most important questions about the thermal history of the Universe, namely, whether the intergalactic medium was reionized by accreting black holes or by stars. The combination of very deep with wide area data will determine the luminosity function for active galactic nuclei and thus reconstruct the black hole accretion history of the Universe.The significant discoveries that will be made in this very special era of observational cosmology will be presented to the public and to educators through various programs.***

AST-0239425BARGERTHTHIS项目打算识别和研究构成X射线外层状背景光的来源。 现在，第一次可以使用Chandra X射线观测站的图像进行几乎完整的软X射线源的普查，并将在无线电，亚毫米，红外和光学波长的地面进行后续观察。 研究宿主星系中的超大质量黑洞应有助于解决有关宇宙热史的最重要问题之一，即，是通过在黑洞中或恒星积聚的层间培养基。 非常深度与广泛数据的结合将确定主动银河核的光度函数，从而重建宇宙的黑洞积聚历史。在这个非常特殊的观察宇宙学时代，将会出现重要的发现，并通过各种程序向公众展示。*** *** *** *** *** *** ***