Japan STA Program: Observations of Cosmic X-ray Sources

日本 STA 计划：宇宙 X 射线源观测

• 批准号: 9602568
• 负责人: Bradley Rubin
• 金额: $ 0.3万
• 依托单位: Fellowships
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-12-01 至 1999-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9602568&HistoricalAwards=false
• 关键词: Japan; STA; Program; Observations; Cosmic

Rubin 9602568 This award supports a 24 month Science and Technology Agency of Japan (STA) Postdoctoral Fellowship for Dr. Bradley Rubin at the Institute of Physical and Chemical Research (RIKEN) in Tokyo, Japan. Dr. Rubin will work with Dr. Masaru Matsuoka, Director of the Cosmic Radiation Laboratory at RIKEN, on a research project entitled "Observations of Cosmic X-Ray Sources". The proposed research will investigate the emission of electromagnetic energy occurring in selected x-ray binary systems with specific emphasis on the analysis of data recorded by orbiting high energy observatories. Soft x-ray transients are a class of x-ray binaries containing a neutron star for which outbursts of strong x-ray emission are occasionally observed. Modeling the high energy spectra in both the quiescent and outburst states is critical to an understanding of the physical structure and outburst mechanisms of these systems. The analysis will discriminate between accretion and shock powered models of the quiescent emission and thermal and non-thermal models of the outburst emission. Research will also focus on another class of x- ray binaries, x-ray pulsars, which emit periodic signals due to the rotation of an accretion powered neutron star. Emission line observations of these systems will be used to obtain information about the density and ionization structure of the surrounding environment. The result of this research in its entirety will be an improved understanding of the nature of these enigmatic objects. ***

Rubin 9602568 该奖项支持布拉德利鲁宾博士在日本东京理化研究所（RIKEN）获得为期24个月的日本科学技术厅（STA）博士后奖学金。 鲁宾博士将与理化学研究所宇宙辐射实验室主任松冈胜博士一起进行一项名为“宇宙X射线源观测”的研究项目。 拟议的研究将调查某些X射线双星系统中发生的电磁能发射，特别侧重于分析轨道高能观测站记录的数据。 软x射线瞬变是一类含有中子星星的x射线双星，偶尔会观察到强烈的x射线爆发。 模拟静止和爆发状态下的高能光谱对于理解这些系统的物理结构和爆发机制至关重要。 分析将区分静态发射的吸积和冲击动力模型和爆发发射的热模型和非热模型。 研究还将集中在另一类x射线双星，x射线双星，它发射周期性信号，由于吸积动力中子星星的旋转。 这些系统的发射线观测将用于获得有关周围环境的密度和电离结构的信息。整个研究的结果将是对这些神秘物体性质的更好理解。 ***