GECAM伽马暴数据分析算法和软件设计介绍  

Introduction to gamma-ray burst data analysis algorithm and software tools for GECAM

作　　者：宋欣颖 熊少林[1] 罗琦 廖进元 朱玥[1] 黄跃[1] 乔锐[1] 郭东亚[1] 陈维 张凯[1,2] 蔡策 肖硕 彭文溪 宋黎明[1] 郑世界[1] 王平[1] 李小波[1] 马想[1] SONG XinYing;XIONG ShaoLin;LUO Qi;LIAO JinYuan;ZHU Yue;HUANG Yue;QIAO Rui;GUO DongYa;CHEN Wei;ZHANG Kai;CAI Ce;XIAO Shuo;PENG WenXi;SONG LiMing;ZHENG ShiJie;WANG Ping;LI XiaoBo;MA Xiang(Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;School of Physics and Physical Engineering,Qufu Normal University,Jining 273100,China)

机构地区：[1]中国科学院高能物理研究所,北京100049 [2]曲阜师范大学物理工程学院,济宁273100

出　　处：《中国科学：物理学、力学、天文学》2020年第12期116-124,共9页Scientia Sinica Physica,Mechanica & Astronomica

基　　金：中国科学院战略性先导科技专项(编号:XDA15052700)和中国科学院前沿科学重点研究计划(编号:QYZDB-SSW-SLH012)资助项目。

摘　　要：引力波暴高能电磁对应体全天监测器(Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor,GECAM)的物理数据分析工作至关重要,所以科学用户需要一套能够涵盖所有伽马暴数据分析功能的软件,且该软件具有满足用户友好、简单易用等特点.本文描述了GECAM伽马暴数据分析软件的架构设计,包括图形用户界面(Graphical User Interface,GUI)和命令行界面(Command Line Interface,CLI),以及伽马暴数据分析的核心算法.本文对核心算法的设计和分析流程进行了概述,包括数据处理、本底分析、伽马暴定位、能谱拟合、上限计算、信号显著性计算、光变分析、外部触发事件关联概率计算,以及对GECAM触发事件进行分类的朴素贝叶斯分类器,为今后利用GECAM开展伽马暴数据分析工作提供了依据和参考.The Gamma-Ray Burst(GRB) data analysis is of great importance for the research on Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor(GECAM);therefore, a user-friendly software tool that covers all the requirements on GRB data analysis has been developed for users. In this paper, the framework and architectural design of GRB data analysis tools software has been described. Meanwhile, details design including the graphical user interface and command line interface were introduced, as well as its installation. The core algorithms of the GRB data analysis were clarified and outlined, including background analysis, calculations on statistical significance, duration and peak flux in given time scale of light curve, fit for deposited energy spectrum, the calculation for the association of GRBs and external trigger event, and a trigger classifier based on Native Bayesian Classification, which offers a rationale and sample for the forward GRB data analysis in GECAM.

关 键 词：引力波 伽马暴 数据分析 软件设计 

分 类 号：P172.3[天文地球—天文学] P142.84