甚大面积伽马射线空间望远镜计划  

Very Large Area Gamma-ray Space Telescope (VLAST)

作　　者：范一中[1,2,3] 常进 郭建华[1,2,3] 袁强 胡一鸣[1,2] 李翔[1,2,3] 岳川 黄光顺[4,5] 刘树彬[4,5] 封常青[4,5] 张云龙 魏逸丰[4,5] 孙志宇[6] 余玉洪 孔洁[6] 赵承心 藏京京[7] 蒋维[1,2] 潘旭[1,2,3] 韦家驹 汪慎[1,2] 段凯凯[1,2] 沈兆强[1,2] 夏子晴 徐遵磊 冯磊 黄晓渊 蔡岳霖[1,2] 魏俊杰 曾厚敦 贺昊宁[1,2] 李剑 杨睿智 颜景志 张毅[1,2,3] 吴雪峰 韦大明[1,2,3] FAN Yi-zhong;CHANG Jin;GUO Jian-hua;YUAN Qiang;HU Yi-ming;LI Xiang;YUE Chuan;HUANG Guang-shun;LIU Shu-bin;FENG Chang-qin;ZHANG Yun-long;WEI Yi-feng;SUN Zhi-yu;YU Yu-hong;KONG Jie;ZHAO Cheng-xin;ZANG Jin-jin;JIANG Wei;PAN Xu;WEI Jia-ju;WANG Shen;DUAN Kai-kai;SHEN Zhao-qiang;XIA Zi-qing;XU Zun-lei;FENG Lei;HUANG Xiao-yuan;TSAI Yue-lin;WEI Jun-jie;ZENG Hou-dun;HE Hao-ning;LI Jian;YANG Rui-zhi;YAN Jing-zhi;ZHANG Yi;WU Xue-feng;WEI Da-ming(Purple Mountain Observatory,Chinese Academy of Sciences,Nanjing 210023;Key Laboratory of Dark Matter and Space Astronomy,Chinese Academy of Sciences,Nanjing 210023;School of Astronomy and Space Science,University of Science and Technology of China,Hefei 230026;State Key Laboratory of Particle Detection and Electronics,University of Science and Technology of China,Hefei 230026;Department of Modern Physics,University of Science and Technology of China,Hefei 230026;Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000;School of Physics and Electronic Engineering,Linyi University,Linyi 276000;National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100049)

机构地区：[1]中国科学院紫金山天文台,南京210023 [2]中国科学院暗物质与空间天文重点实验室,南京210023 [3]中国科学技术大学天文与空间科学学院,合肥230026 [4]核探测与核电子学国家重点实验室中国科学技术大学,合肥230026 [5]中国科学技术大学近代物理系,合肥230026 [6]中国科学院近代物理研究所,兰州730000 [7]临沂大学物理与电子工程学院,临沂276000 [8]中国科学院国家天文台,北京100049

出　　处：《天文学报》2022年第3期13-30,共18页Acta Astronomica Sinica

基　　金：国家自然科学基金项目(U1831206、11921003);中国科学院科研仪器设备研制关键技术团队(GJJSTD20210009)资助。

摘　　要：高能伽马射线探测是研究极端天体物理的主要途径之一.空间高能伽马射线探测具有覆盖波段宽、时间连续性好、能量分辨率高等突出优势.在成功研发并运行我国首颗天文卫星—"悟空"号(DArk Matter Particle Explorer,DAMPE)的基础上,紫金山天文台联合国内的多家单位提议研制甚大面积伽马射线空间望远镜(Very Large Areagamma-ray Space Telescope,VLAST),该望远镜在GeV-TeV能段接受度高达10 m^(2)·sr,并具有强的MeV-GeV波段探测能力,其综合性能预期比费米卫星的大面积伽马望远镜(Fermi-LAT(Large Area Telescope))提升10倍之上.重点介绍了VLAST的主要科学目标,探测器的初步配置及预期性能指标.High energy gamma-rays carry the fundamental information of the astrophysical sources in extreme conditions.The space detection of gamma-rays is distinguished by the wide energy range,the observation continuity as well as the high energy resolution.With the experience in constructing and running the DArk Matter Particle Explorer(DAMPE),we propose a new satellite mission—Very Large Area gamma-ray Space Telescope(VLAST).VLAST has an acceptance of~10 m^(2)
sr at GeV energies and~1 m^(2)
sr at MeV energies.Together with a much better energy resolution,VLAST is expected to increase the sensitivity of Fermi Large Area Telescope by a factor of 10.In this work,the main scientific objectives,the detection principle,the payload and the expected performance of VLAST are introduced.

关 键 词：仪器:探测器 伽马射线:普通 辐射机制:非热 粒子天体物理 

分 类 号：P111[天文地球—天文学]