The POLAR-2 large scale gamma-ray polarization mission

Xin Wu; Nicolas Produit

doi:10.1117/12.2628326

26 August 2022 The POLAR-2 large scale gamma-ray polarization mission

Xin Wu, Nicolas Produit

Proceedings Volume 12181, Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray; 121812M (2022) https://doi.org/10.1117/12.2628326
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

The POLAR-2 gamma-ray burst (GRB) polarimetry mission is a follow-up of the successful POLAR mission which has collected data during 6 months on board the Chinese Tiangong-2 spacelab in 2016-2017. From the polarization studies on 14 GRBs, POLAR measured an overall low polarization as well as an unexpected complexity in the time evolution of the polarization during a GRB. These results indicate that measurements with a significantly improved precision are required. Furthermore, with the recent discovery of gravitational waves and their connection to GRBs warrant a high precision GRB polarimeter capable of both providing high precision polarization measurements as well as detecting very weak GRBs. The POLAR-2 polarimeter, based on the same Compton scattering measurement principle as POLAR, but with an extended energy range and an order of magnitude larger overall effective area for polarization events. The instrument, proposed and being developed by a Swiss, Chinese, Polish and German c

Conference Presentation

Citation Download Citation

Xin Wu and Nicolas Produit "The POLAR-2 large scale gamma-ray polarization mission", Proc. SPIE 12181, Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray, 121812M (26 August 2022); https://doi.org/10.1117/12.2628326

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