Long and Medium-Term Research: Astrophysics Research at Cambridge

中长期研究：剑桥天体物理学研究

• 批准号: 9201412
• 负责人: Paul Green
• 金额: $ 1.37万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-09-01 至 1993-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9201412&HistoricalAwards=false
• 关键词: Long; Medium; Term; Research; Astrophysics

Long and Medium-Term Research: Astrophysics Research at Cambridge This award is under the Long and Medium-Term Research at Foreign Centers of Excellence Program, which enables U.S. scientists and engineers to conduct three to twelve months of research abroad at research centers of proven excellence. The program's awards provide opportunities for joint research, and the use of unique or complementary facilities, expertise and experimental conditions abroad. This award will support a three-month postdoctoral research visit by Dr. Paul Green to work with Dr. Martin Rees at the University of Cambridge. Dr. Green plans to study the dependence of UV emission-line parameters on soft X-ray luminosity in quasars, using samples of quasars with no emission-line bias. He will measure IUE equivalent widths and Einstein X-ray fluxes to determine the relative importance of the UV and X-ray ionizing continua to emission from the broad line region of quasars. He will analyze the potential of an X-ray "Baldwin effect" for use as a standard candle in cosmological tests. The award recommendation provides funds to cover international travel and a stipend for three months.

长期和中期研究：剑桥大学天体物理学研究该奖项由外国卓越中心长期和中期研究计划颁发，这使得美国科学家和工程师能够在国外被证明是卓越的研究中心进行为期三到十二个月的研究。该项目的奖项提供了联合研究的机会，并提供了使用国外独特或互补的设施、专业知识和实验条件的机会。这一奖项将支持保罗·格林博士在剑桥大学与马丁·里斯博士合作进行为期三个月的博士后研究访问。格林博士计划利用没有发射线偏差的类星体样本，研究类星体中紫外线发射线参数对软X射线光度的依赖关系。他将测量IUE当量宽度和爱因斯坦X射线通量，以确定紫外线和X射线电离连续性对类星体宽线区域发射的相对重要性。他将分析X射线“鲍德温效应”在宇宙学测试中用作标准蜡烛的可能性。该奖励建议提供国际旅行经费和三个月的津贴。