Preliminary design of the INPE's Solar Vector Magnetograph

Abstract

Abstract.We describe the preliminary design of a magnetograph and visible-light imager instrument to study the solar dynamo processes through observations of the solar surface magnetic field distribution. The instrument will provide measurements of the vector magnetic field and of the line-of-sight velocity in the solar photosphere. As the magnetic field anchored at the solar surface produces most of the structures and energetic events in the upper solar atmosphere and significantly influences the heliosphere, the development of this instrument plays an important role in reaching the scientific goals of The Atmospheric and Space Science Coordination (CEA) at the Brazilian National Institute for Space Research (INPE). In particular, the CEA's space weather program will benefit most from the development of this technology. We expect that this project will be the starting point to establish a strong research program on Solar Physics in Brazil. Our main aim is acquiring progressively the know-how to build state-of-art solar vector magnetograph and visible-light imagers for space-based platforms to contribute to the efforts of the solar-terrestrial physics community to address the main unanswered questions on how our nearby Star works.

Development of a proof-of-concept spectropolarimeter in the framework of the GSST mission: Characterization and performance analysis of a sCMOS image sensor

“…To achieve the mission's goals, the GSST was separated into three phases and different instruments, including a spectropolarimeter and an electrical substitution radiometer (ESR) (Vieira et al, 2015;CPRIME, 2018;Vieira et al, 2019;Carlesso et al, 2020;Carlesso et al, 2021;Carlesso et al, 2022;Vieira et al, 2022). In the early stage of the spectropolarimeter, a magnetograph and a visible light imaging device are developed in a laboratory-controlled environment.…”