AntarctiCor: Solar Coronagraph in Antarctica for the ESCAPE Project

• Main Authors: Fineschi, S., Capobianco, G., Massone, G., Susino, R., Zangrilli, L., Bemporad, A., Liberatore, A., Landini, F., Romoli, M., Damé, Luc, Christille, J. M., Sandri, P., Marmonti, M., Galy, C.
• Other Authors: INAF - Osservatorio Astrofisico di Torino (OATo), Istituto Nazionale di Astrofisica (INAF), Dipartimento di Fisica e Astronomia Firenze, Università degli Studi di Firenze = University of Florence Firenze (UNIFI), HELIOS - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Sorbonne Université (SU)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), Osservatorio Astronomico della Regione Autonoma Valle d'Aosta e il Planetario di Lignan (OAVdA), Centre Spatial de Liège (CSL), Université de Liège
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2019
• Subjects: [SDU.ASTR.SR]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR]; Antarctic; Antarc*; Antarctica
• Online Access: https://hal-insu.archives-ouvertes.fr/insu-02377395; https://hal-insu.archives-ouvertes.fr/insu-02377395/document; https://hal-insu.archives-ouvertes.fr/insu-02377395/file/ncc11765.pdf; https://doi.org/10.1393/ncc/i2019-19026-9

International audience The Antarctica solar coronagraph –AntarctiCor– for the “Ex- treme Solar Coronagraphy Antarctic Program Experiment” –ESCAPE– comprises an internally-occulted coronagraph based on the externally-occulted ASPIICS coro- nagraph for the ESA formation-flying PROBA-3 mission. This paper describes the AntarctiCor design for ground-based observations from the DomeC Antarctica plateau of the polarized broad-band (591 nm ± 5 nm) K-corona and of the narrow- band (FWHM = 0.5 nm), polarized emission of the coronal green-line at 530.3 nm. The science goal of these observations is to map the topology and dynamics of the coronal magnetic field, addressing coronal heating and space weather questions.