Cross-calibration of GRID via correlative spectral analysis of GRBs
Gamma-ray bursts (GRBs) are among the most energetic phenomena in the universe, and their observation has significantly advanced with the development of space-based gamma-ray telescopes. The Gamma-Ray Integrated Detectors (GRID) mission has initiated a nanosatellite constellation capable of all-sky GRB monitoring, deploying 12 detector payloads in low Earth orbit and collecting its first batch of scientific data. For GRB analysis, dedicated detector response matrices (DRMs) were individually constructed for each detector using Monte Carlo simulations and ground calibration. To further validate detector performance under real operational conditions, cross-calibration with existing space missions offers a robust validation. Herein, cross-calibration between the GRID detectors and the Fermi’s Gamma-ray Burst Monitor (GBM) was performed through joint spectral analysis. The excellent agreement between the instruments validates the accuracy of GRID’s DRMs and the reliability of its scientific data. For nanosatellite constellations like GRID, cross-calibration through orbital observations involving multiple distributed detector payloads is a crucial tool for ensuring uniformity and verifying overall performance of such systems.
Authors
- Qize Liu (ORCID: https://orcid.org/0000-0002-4906-9290)
- Xutao Zheng (ORCID: https://orcid.org/0000-0001-7647-7110)
- Jianyong Jiang (ORCID: https://orcid.org/0000-0001-6482-5915)
- Jianping Cheng (ORCID: https://orcid.org/0000-0002-4541-6582)
- Zhonghai Wang (ORCID: https://orcid.org/0000-0003-3246-8807)
- Benda Xu (ORCID: https://orcid.org/0000-0001-5135-1319)
- Zhi Zeng (ORCID: https://orcid.org/0000-0003-1243-7675)
- Longhao Li (ORCID: https://orcid.org/0000-0002-7486-3285)
- Xiaofan Pan (ORCID: https://orcid.org/0000-0002-7439-6621)
- Yang Tian (ORCID: https://orcid.org/0000-0003-1970-0413)
- Ming Zeng (ORCID: https://orcid.org/0000-0001-8446-9225)
- Hua Feng (ORCID: https://orcid.org/0000-0001-7584-6236)
- Lin Lin (ORCID: https://orcid.org/0000-0002-0793-5795)
- Yuanyuan Liu (ORCID: https://orcid.org/0000-0001-9215-3941)
- Binbin Zhang (ORCID: https://orcid.org/0000-0002-7164-5127)
- Zirui Yang
- Rong Zhou (ORCID: https://orcid.org/0000-0002-0322-9199)
- Qidong Wang (ORCID: https://orcid.org/0000-0001-6121-7906)
- Wentao Han (ORCID: https://orcid.org/0009-0003-4694-9967)
- Jiayong Zhong (ORCID: https://orcid.org/0000-0001-9357-1117)
- Huaizhong Gao
- Hanwen Lin
- Chenyu Wang (ORCID: https://orcid.org/0009-0005-3631-4495)
Institutions
- Chinese Academy of Sciences (CN)
- Sichuan University (CN)
- Beijing Normal University (CN)
- Institute of High Energy Physics (CN)
- Nanjing University (CN)
- Tsinghua University (CN)
Publication Details
- Journal
- Experimental Astronomy
- Published
- 2025-05-06
- DOI
- https://doi.org/10.1007/s10686-025-10002-2
- Citations
- 1
- Primary Topic
- Gamma-ray bursts and supernovae
- Type
- article
- Field-Weighted Citation Impact
- 1.15
Funders
- National Natural Science Foundation of China
- Tsinghua University