Long and Medium-Term Research: Astrophysics Research at Cambridge

中长期研究：剑桥大学天体物理学研究该奖项隶属于国外卓越中心长期和中期研究项目，它使美国科学家和工程师能够在国外公认的卓越研究中心进行三到十二个月的研究。该计划的奖励为联合研究提供了机会，并利用独特或互补的设施、专业知识和国外的实验条件。该奖项将支持Paul Green博士与Martin Rees博士在剑桥大学进行为期三个月的博士后研究访问。格林博士计划使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等效宽度和爱因斯坦x射线通量，以确定紫外和x射线电离连续辐射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”在宇宙学测试中作为标准蜡烛的潜力。奖励建议提供国际旅费和三个月的津贴。

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.