We describe the science case, design and expected performances of the X/Gamma-ray Imaging Spectrometer (XGIS), a GRB and transients monitor developed and studied for the THESEUS mission project, capable of covering an exceptionally wide energy band (2 keV – 10 MeV), with imaging capabilities and location accuracy <15 arcmin up to 150 keV over a Field of View of 2sr, a few hundreds eV energy resolution in the X-ray band (<30 keV) and few micro seconds time resolution over the whole energy band. Thanks to a design based on a modular approach, the XGIS can be easily re-scaled and adapted for fitting the available resources and specific scientific objectives of future high-energy astrophysics missions, and especially those aimed at fully exploiting GRBs and high-energy transients for multi-messenger astrophysics and fundamental physics.
Amati L., Labanti C., Mereghetti S., Frontera F., Campana R., Auricchio N., et al. (2022). The X/Gamma-ray Imaging Spectrometer (XGIS) for THESEUS and other mission opportunities. 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA : SPIE [10.1117/12.2630178].
The X/Gamma-ray Imaging Spectrometer (XGIS) for THESEUS and other mission opportunities
Amati L.;Auricchio N.;Baldazzi G.Investigation
;Branchesi M.;De Rosa A.;Farinelli R.;Fuschino F.;Melchiorri M.;Sottile G.;Winkler M.;
2022
Abstract
We describe the science case, design and expected performances of the X/Gamma-ray Imaging Spectrometer (XGIS), a GRB and transients monitor developed and studied for the THESEUS mission project, capable of covering an exceptionally wide energy band (2 keV – 10 MeV), with imaging capabilities and location accuracy <15 arcmin up to 150 keV over a Field of View of 2sr, a few hundreds eV energy resolution in the X-ray band (<30 keV) and few micro seconds time resolution over the whole energy band. Thanks to a design based on a modular approach, the XGIS can be easily re-scaled and adapted for fitting the available resources and specific scientific objectives of future high-energy astrophysics missions, and especially those aimed at fully exploiting GRBs and high-energy transients for multi-messenger astrophysics and fundamental physics.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
