The GRB joint scientific analysis pipeline of the ECLAIRs and GRM instruments on board SVOM

TL;DR

This paper introduces the eclgrm pipelines on SVOM that combine data from two instruments to produce real-time and post-event scientific data products for GRB analysis.

Contribution

The paper presents the architecture, workflow, and data analysis methods of the eclgrm pipelines, enabling integrated broad-band GRB analysis on SVOM.

Findings

The pipelines generate real-time and full data products for GRB analysis.

The eclgrm-ui interface allows scientists to monitor and optimize data processing.

The pipelines successfully combine data from ECLAIRs and GRM instruments.

Abstract

The study of the prompt high-energy emission of Gamma-Ray Bursts (GRBs) with SVOM relies on the observations performed by ECLAIRs (4-150 keV) and the Gamma-Ray Monitor (GRM, 0.015-5 MeV), the two wide field-of-view instruments on board the satellite. In this article, we introduce the eclgrm pipelines running at the French Science Center of SVOM, which combine the ECLAIRs and GRM data to generate scientific data products describing the GRB broad-band temporal and spectral properties. The architecture of the pipelines is presented, as well as their activation following each onboard trigger, and their workflow. The statistical data analysis methods employed by the pipelines are described, along with the scientific data products that are created in real time or from the full event data. We also present the eclgrm-ui user interface which allows the scientists on shift to monitor the automated data processings in the pipelines, and to optimize the analysis results interactively.