Can the bump in the composite spectrum of GRB 910503 be an emission line feature of gamma-ray bursts

• 作 者: Yi-Ping Qin Fu-Wen Zhang
• 机 构: NationalAstronomicalObservatories,PhysicsDepartment,GraduateUniversityofChineseAcademyofSciences
• 出 处: 中国天文和天体物理学报：英文版
• 发表日期: 2005年6期
• 关键词: 伽玛射线 辐射机制 相对性 光谱 天文物理 gamma-rays bursts - gamma-rays theory - radiation mechan
• 基金项目: 中国科学院资助项目，国家重点基础研究发展计划(973计划)，中国科学院资助项目

Appearing in the composite spectral data of BATSE, EGRET and COMPTEL for GRB 910503, there is a bump at around 1600keV. We perform a statistical analysis on the spectral data, trying to find out if the bump could be accounted for by a blue-shifted and sig