CASSTOR: a scientific and technology nanosatellite demonstrator for UV spectropolarimetry
Coralie Neiner, Vincent Lapeyrere, Eitan Pechevis, Claude Catala, Boris Segret, Feliu Lacreu, Rashika Jain, Jean-Michel Reess, Frederic Esteve, Charles-Antoine Chevrier, Jean-Luc Le Gal, Laurent Doumic, Adrien Saada, Maelle Le Gal, Olivier Dupuis, Alexandre Dupuy
TL;DR
CASSTOR is a nanosatellite project designed to perform UV spectropolarimetry of hot stars, testing new technologies like a UV polarimeter and Fine Guiding System to support future space missions.
Contribution
This paper presents the Phase 0 study of CASSTOR, a nanosatellite for UV spectropolarimetry, introducing new instrumentation and technological advancements.
Findings
Development of UV polarimeter and Fine Guiding System
First UV spectropolarimetric observations of hot stars planned
Feasibility demonstrated for nanosatellite UV spectropolarimetry
Abstract
In the context of the development of several space mission projects for UV spectropolarimetry at high resolution and over a wide UV wavelength range, such as Arago, Polstar, and Pollux onboard the Habitable Worlds Observatory, we are studying and developing the UV nanosatellite CASSTOR to obtain the very first UV spectropolarimetric observations of hot stars and test several new technologies, in particular a UV polarimeter and a Fine Guiding System. In this paper, we present the work and outcome of the Phase 0 study of CASSTOR.
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