Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) is a dedicated mission, launched in December 2020, for gamma-ray transients including gamma-ray bursts (GRBs) and soft gamma repeater (SGR) bursts in the multi-messenger and multi-wavelength astronomy era. Since GECAM consists of two independent spacecrafts (or say instruments), and the framework of data analysis for multiple spacecrafts is distinctive from that for only one spacecraft, which is the case for most GRB missions, we developed a dedicated pipeline called Energetic Transients Joint Analysis System for Multi-INstrument (ETJASMIN) for GECAM mission. This pipeline has been naturally extended to incorporate data from other gamma-ray instruments, including the operating missions, such as Insight-HXMT/HE, Fermi/GBM, Swift/BAT, INTEGRAL/SPI-ACS, Konus-Wind and GRID, as well as the forthcoming missions, such as SVOM/GRM and HEBS. In this paper, we present this pipeline with focus on the data analysis procedures, methodology and results in terms of the localization, verification (classification), spectral and temporal analyses of gamma-ray transients. We show that this pipeline could provide more accurate, reliable and comprehensive results than that of individual spacecraft, which is beneficial for gamma-ray transients observation.

中文翻译：

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用于 GECAM I 的多仪器 (ETJASMIN) 的高能瞬态联合分析系统。位置、时间和频谱分析

引力波高能电磁对应全天监测器 (GECAM) 是一项专门任务，于 2020 年 12 月发射，用于探测伽马射线瞬变，包括多信使中的伽马射线暴 (GRB) 和软伽马中继器 (SGR) 暴和多波长天文学时代。由于 GECAM 由两个独立的航天器（或说仪器）组成，并且多个航天器的数据分析框架不同于仅一个航天器的框架，这是大多数 GRB 任务的情况，我们开发了一个名为“高能瞬态联合分析”的专用管道用于 GECAM 任务的多仪器系统 (ETJASMIN)。该管道已自然扩展以包含来自其他伽马射线仪器的数据，包括操作任务，例如 Insight-HXMT/HE、Fermi/GBM、Swift/BAT、INTEGRAL/SPI-ACS、Konus-Wind 和 GRID，以及即将到来的任务，例如 SVOM/GRM 和 HEBS。在本文中，我们介绍了这条管道，重点介绍了伽马射线瞬变的定位、验证（分类）、光谱和时间分析方面的数据分析程序、方法和结果。我们表明，这条管道可以提供比单个航天器更准确、可靠和全面的结果，有利于伽马射线瞬变观测。