paper

Gamma-ray burst localisation strategies for the SPHiNX hard X-ray polarimeter

arXiv:1901.08948 · doi:10.1117/1.JATIS.5.1.018002

Abstract

SPHiNX is a proposed gamma-ray burst (GRB) polarimeter mission operating in the energy range 50-600 keV with the aim of studying the prompt emission phase. The polarisation sensitivity of SPHiNX reduces as the uncertainty on the GRB sky position increases. The stand-alone ability of the SPHiNX design to localise GRB positions is explored via Geant4 simulations. Localisation at the level of a few degrees is possible using three different routines. This results in a large fraction (> 80%) of observed GRBs having a negligible (< 5%) reduction in polarisation sensitivity due to the uncertainty in localisation.

arXiv comment15 pages, 16 figures, 2 tables. Accepted for publication in SPIE JATIS

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