脉冲星单脉冲与闪烁分析软件设计

Software Design of Data Analysis for Pulsar Individual Pulse and Scintillation Studies

射电脉冲星天文学中,单脉冲与闪烁研究探求脉冲星辐射机制与星际电离介质属性。这两个领域的研究为五百米口径球面射电望远镜(FAST)的规划内重要科研项目。作为FAST脉冲星数据处理软件平台建设的一部分,本工作运用国际通用PSRFITS折叠模式数据操作软件PSRCHIVE的共享库,设计完成程序,PEM(Pulse Energy Measurer),PDA(Pulse Drifting Analyzer)和PSA(Pulsar Scintillation Analyzer)。这些程序可分别用于单脉冲能量分布,子脉冲漂移和衍射式强闪烁领域的数据分析,将用于FAST开展相关领域的研究。

In radio pulsar astronomy, individual pulse and scintillation studies investigate pulsar emission mecha- nism and the attributes of interstellar medium. Studies in these domains are key projects planned for the Five-hun- dred-meter Aperture Spherical Telescope （FAST）. As part of the construction of FAST pulsar data-analyzing soft- ware platform, in the present work, the shared libraries of PSRCHIVE, an internationally wide-used software package for operating fold-mode data in PSRFITS format was used for the design of the programs, PEM （Pulse Energy Measurer）, PDA （Pulse Drifting Analyzer） and PSA （Pulsar Scintillation Analyzer）. These programs were used for the data analysis of the studies on individual pulses＂ energy distribution, sub-pulse drifting and strong diffractive scintillation respectively, which will be used for carrying out relevant studies with FAST.