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20242026
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astro-ph.IM2026

EXPO: a quantum leap in fast, wide-band X-ray polarimetry for astrophysics

Paolo Soffitta, Sebastien Guillot, Ian Hutchinson +137

The Enhanced X-ray Polarimetry Observatory (EXPO) is a mission concept proposed to ESA as an M8 candidate, with a prospective launch in 2041. Building on the scientific success of…

astro-ph.IM2026

In orbit background for hard X-ray CubeSat polarimeters: case study of the CUSP mission in low-earth orbit

Abhay Kumar, Giovanni Lombardi, Riccardo Campana +45

The CUbesat Solar Polarimeter (CUSP) project aims to measure the linear polarization of solar flares in the 25 - 100 keV hard X-ray band using a Compton scattering polarimeter. CUS…

astro-ph.IM2026

The CUSP CubeSat mission for space weather multi-physics analysis, design, and testing

Giovanni Lombardi, Riccardo Di Spirito, Sergio Fabiani +48

The CUbesat Solar Polarimeter (CUSP) mission aims to measure the linear polarization of solar flares in the hard X-ray band by means of a Compton scattering polarimeter. CUSP is a…

astro-ph.IM2026

Spectral performance of single-channel plastic and GAGG scintillator bars of the CUbesat Solar Polarimeter (CUSP)

Nicolas De Angelis, Abhay Kumar, Sergio Fabiani +45

Our Sun is the closest X-ray astrophysical source to Earth. As such, it makes a formidable case study to better understand astrophysical processes. Solar flares are in particular v…

astro-ph.IM2025

The multi-physics analysis, design and testing of CUSP, a CubeSat mission for space weather and solar flares x-ray polarimetry

Giovanni Lombardi, Sergio Fabiani, Ettore Del Monte +45

The space-based CUbesat Solar Polarimeter (CUSP) mission aims to measure the linear polarization of solar flares in the hard X-ray band by means of a Compton scattering polarimeter…

astro-ph.IM2025

Study of the HV power supply modules for the CUbesat Solar Polarimeter (CUSP)

Alessandro Lacerenza, Alda Rubini, Andrea Alimenti +45

The CUbesat Solar Polarimeter (CUSP) project is a CubeSat mission orbiting the Earth aimed to measure the linear polarization of solar flares in the hard X-ray band by means of a C…