实验室X射线天体物理  

Laboratory X-ray Astrophysics

作　　者：梁贵云[1] 赵刚[1] 

机构地区：[1]中国科学院国家天文台,北京100012

出　　处：《天文学进展》2005年第3期248-271,共24页Progress In Astronomy

基　　金：中国科学院创新方向性资助项目(KJCX2-W2)

摘　　要：正在进行的实验室天体物理测量解决了X射线天文学的一些问题。这些实验产生了大量可靠的原子数据,它们既可用于电荷分布中电离与复合截面的计算,又可用于对X射线谱线形成的线表、激发截面及双电子复合系数的理解。另有一部分实验注重于解决天体观测的难题,以及验证现有的和寻找新的X射线谱线诊断。讨论了上述实验产生的数据类型,并展示了实验室测量如何为卫星(ASCA、EUVE、Chandra、XMM和ASTRO-E2)观测提供实验依据.Laboratory astrophysics measurements are being conducted to address the needs of X-ray astronomy. The measurements have produced large sets of reliable atomic data, including ionization and recombination cross sections for charge balance calculations, line lists, excitation cross sections, and dielectronic recombination rate for interpreting X-ray line formation as well. Additional experiments focus on solving specific puzzles posed by astrophysical observations, calibrating and developing new X-ray line diagnostics. In this paper, we discuss the types of data produced and illustrate how the laboratory measurements support space missions such as ASCA, Chandra, XMM, and ASTRO-E2.

关 键 词：天体物理学 X射线 综述 原子数据 谱线形成 光谱诊断 光谱分类 实验设备 

分 类 号：P172.2[天文地球—天文学]