The Infra-Red Telescope (IRT) on board the THESEUS mission
Diego G\"otz, St\'ephane Basa, Fr\'ed\'eric Pinsard, Laurent Martin,, Axel Arhancet, Enrico Bozzo, Christophe Cara, Isabel Escudero Sanz,, Pierre-Antoine Frugier, Johan Floriot, Ludovic Genolet, Paul Heddermann,, Emeric Le Floc'h, Isabelle Le Mer, St\'ephane Paltani
TL;DR
The paper describes the design and expected performance of the Infra-Red Telescope (IRT) on the THESEUS mission, aimed at detecting and localizing gamma-ray burst counterparts in the near-infrared spectrum.
Contribution
It provides the design details and performance expectations of the IRT, a key component of the THESEUS mission for high-energy transient observation.
Findings
Design specifications of the IRT are outlined.
Expected localization accuracy and sensitivity are discussed.
The IRT's role in identifying NIR counterparts is emphasized.
Abstract
The Infra-Red Telescope (IRT) is part of the payload of the THESEUS mission, which is one of the two ESA M5 candidates within the Cosmic Vision program, planned for launch in 2032. The THESEUS payload, composed by two high energy wide field monitors (SXI and XGIS) and a near infra-red telescope (IRT), is optimized to detect, localize and characterize Gamma-Ray Bursts and other high-energy transients. The main goal of the IRT is to identify and precisely localize the NIR counterparts of the high-energy sources and to measure their distance. Here we present the design of the IRT and its expected performance.
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Taxonomy
TopicsGamma-ray bursts and supernovae · Particle Detector Development and Performance · Astronomy and Astrophysical Research