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arXiv · 2509.16669

Monitoring Gamma Ray Bursts with the Zirè instrument onboard the NUSES space mission

Ritabrata Sarkar
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Abstract

The Zirè experiment onboard NUSES space mission has several science goals, including the measurements of charged particles and light nuclei from few up to hundreds of MeVs, for the study of low-energy cosmic rays, space weather phenomena, and possible magnetosphere-lithosphere-ionosphere coupling signals. Furthermore, the experiment intends to test new tools for the detection of photons in the energy range of about 0.03-50 MeV, allowing the investigation of transient phenomena like gamma-ray bursts (GRBs). A high-density segmented calorimeter exploiting novel scintillator crystals and silicon photomultiplier technology for the readout system will serve this purpose along its main task of calorimetric energy measurement of the cosmic-ray charged particles. In this work, we discuss the functionality of the calorimeter as a GRB monitor through the calculation of its performance in terms of effective area, sensitivity, and timing response for the transient outbursts.

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Ritabrata Sarkar. 2025-09-20. Monitoring Gamma Ray Bursts with the Zirè instrument onboard the NUSES space mission. https://arxiv.org/abs/2509.16669

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