1. Gamma-ray burst localization strategies for the SPHiNX hard x-ray polarimeter
- Author
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Lea Heckmann, Fei Xie, Mark Pearce, Nirmal Iyer, and Mózsi Kiss
- Subjects
Photon ,Astrophysics::High Energy Astrophysical Phenomena ,media_common.quotation_subject ,Monte Carlo method ,Polarimetry ,FOS: Physical sciences ,Astrophysics ,01 natural sciences ,010309 optics ,0103 physical sciences ,Instrumentation and Methods for Astrophysics (astro-ph.IM) ,010303 astronomy & astrophysics ,Instrumentation ,media_common ,Physics ,Sphinx ,Mechanical Engineering ,Astronomy and Astrophysics ,Polarimeter ,Polarization (waves) ,Electronic, Optical and Magnetic Materials ,Space and Planetary Science ,Control and Systems Engineering ,Sky ,Astrophysics - Instrumentation and Methods for Astrophysics ,Gamma-ray burst - 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., 15 pages, 16 figures, 2 tables. Accepted for publication in SPIE JATIS
- Published
- 2019
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