Introducing GRID - Gamma-Ray Integrated Detectors
A team of young and enthusiastic physicists, astronomers, and engineers of Tsinghua University, China, becoming pioneers in multi-messenger astronomy.
Introduction
GRID (Gamma-Ray Integrated Detectors) is a constellation of CubeSats in low earth orbit that analyzes up signals of GRBs from deep space. Using CubeSats, massive deployment of state-of-the-art Gamma-Ray Burst (GRB) Detectors in orbit is made possible. The detectors form a stereo orientation network that interacts with gravitational wave detectors on high-energy astronomical events. By measuring the time delay of the signal reaching two or more cubesats’ detectors, the origin of the GRB is positioned in the sky. With such measurements we would be able to link them with electromagnetic counterparts of gravitational wave sources and fill in the blank of high energy astronomy.
In the News
More information about the project and press conference in Beijing, please visit:
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Official Report from Tsinghua University: “挑战杯”特等奖“天格计划”：基础科学也可以很“酷”
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Official Report from Dept. of Engineering Physics of Tsinghua University: 学生科创作品“天格计划”获清华大学第三十五届“挑战杯”特等奖
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Third-party collection of media reports: 天格计划：引力波电磁对应体探测微小卫星星座(24颗)，2018年KZ-11发射首颗技术验证星，CZ-11火箭发射后续卫星。
Publications
Citation information:
@Article{Wen2019,
author={Wen, Jiaxing and Long, Xiangyun and Zheng, Xutao and An, Yu and Cai, Zhengyang
and Cang, Jirong and Che, Yuepeng and Chen, Changyu and Chen, Liangjun and Chen, Qianjun
and Chen, Ziyun and Cheng, Yingjie and Deng, Litao and Deng, Wei and Ding, Wenqing
and Du, Hangci and Duan, Lian and Gan, Quan and Gao, Tai and Gao, Zhiying
and Han, Wenbin and Han, Yiying and He, Xinbo and He, Xinhao and Hou, Long
and Hu, Fan and Hu, Junling and Huang, Bo and Huang, Dongyang and Huang, Xuefeng
and Jia, Shihai and Jiang, Yuchen and Jin, Yifei and Li, Ke and Li, Siyao
and Li, Yurong and Liang, Jianwei and Liang, Yuanyuan and Lin, Wei and Liu, Chang
and Liu, Gang and Liu, Mengyuan and Liu, Rui and Liu, Tianyu and Liu, Wanqiang
and Lu, Di'an and Lu, Peiyibin and Lu, Zhiyong and Luo, Xiyu and Ma, Sizheng
and Ma, Yuanhang and Mao, Xiaoqing and Mo, Yanshan and Nie, Qiyuan and Qu, Shuiyin
and Shan, Xiaolong and Shi, Gengyuan and Song, Weiming and Sun, Zhigang and Tan, Xuelin
and Tang, Songsong and Tao, Mingrui and Wang, Boqin and Wang, Yue and Wang, Zhiang
and Wu, Qiaoya and Wu, Xuanyi and Xia, Yuehan and Xiao, Hengyuan and Xie, Wenjin
and Xu, Dacheng and Xu, Rui and Xu, Weili and Yan, Longbiao and Yan, Shengyu
and Yang, Dongxin and Yang, Hang and Yang, Haoguang and Yang, Yi-Si and Yang, Yifan
and Yao, Lei and Yu, Huan and Yu, Yangyi and Zhang, Aiqiang and Zhang, Bingtao
and Zhang, Lixuan and Zhang, Maoxing and Zhang, Shen and Zhang, Tianliang and Zhang, Yuchong
and Zhao, Qianru and Zhao, Ruining and Zheng, Shiyu and Zhou, Xiaolong and Zhu, Runyu
and Zou, Yu and An, Peng and Cai, Yifu and Chen, Hongbing and Dai, Zigao
and Fan, Yizhong and Feng, Changqing and Feng, Hua and Gao, He and Huang, Liang
and Kang, Mingming and Li, Lixin and Li, Zhuo and Liang, Enwei and Lin, Lin
and Lin, Qianqian and Liu, Congzhan and Liu, Hongbang and Liu, Xuewen and Liu, Yinong
and Lu, Xiang and Mao, Shude and Shen, Rongfeng and Shu, Jing and Su, Meng
and Sun, Hui and Tam, Pak-Hin and Tang, Chi-Pui and Tian, Yang and Wang, Fayin
and Wang, Jianjun and Wang, Wei and Wang, Zhonghai and Wu, Jianfeng and Wu, Xuefeng
and Xiong, Shaolin and Xu, Can and Yu, Jiandong and Yu, Wenfei and Yu, Yunwei
and Zeng, Ming and Zeng, Zhi and Zhang, Bin-Bin and Zhang, Bing and Zhao, Zongqing
and Zhou, Rong and Zhu, Zonghong},
title={GRID: a student project to monitor the transient gamma-ray sky in the multi-messenger astronomy era},
journal={Experimental Astronomy},
year={2019},
month={Aug},
day={01},
volume={48},
number={1},
pages={77-95},
abstract={The Gamma-Ray Integrated Detectors (GRID) is a space mission concept dedicated to monitoring the transient gamma-ray sky in the energy range from 10 keV to 2 MeV using scintillation detectors onboard CubeSats in low Earth orbits. The primary targets of GRID are the gamma-ray bursts (GRBs) in the local universe. The scientific goal of GRID is, in synergy with ground-based gravitational wave (GW) detectors such as LIGO and VIRGO, to accumulate a sample of GRBs associated with the merger of two compact stars and study jets and related physics of those objects. It also involves observing and studying other gamma-ray transients such as long GRBs, soft gamma-ray repeaters, terrestrial gamma-ray flashes, and solar flares. With multiple CubeSats in various orbits, GRID is unaffected by the Earth occultation and serves as a full-time and all-sky monitor. Assuming a horizon of 200 Mpc for ground-based GW detectors, we expect to see a few associated GW-GRB events per year. With about 10 CubeSats in operation, GRID is capable of localizing a faint GRB like 170817A with a 90{\%} error radius of about 10 degrees, through triangulation and flux modulation. GRID is proposed and developed by students, with considerable contribution from undergraduate students, and will remain operated as a student project in the future. The current GRID collaboration involves more than 20 institutes and keeps growing. On August 29th, the first GRID detector onboard a CubeSat was launched into a Sun-synchronous orbit and is currently under test.},
issn={1572-9508},
doi={10.1007/s10686-019-09636-w},
url={https://doi.org/10.1007/s10686-019-09636-w}
}
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