AntarctiCor: Solar Coronagraph in Antarctica for the ESCAPE Project

S. Fineschi (1) , G. Capobianco (1) , G. Massone (1) , R. Susino (1) , L. Zangrilli (1) , A. Bemporad (1) , A. Liberatore (1) , F. Landini (1) , M. Romoli (2) , Luc Damé (3) , J. M. Christille (4) , P. Sandri , M. Marmonti , C. Galy (5)

1 OATo - INAF - Osservatorio Astrofisico di Torino
2 Dipartimento di Fisica e Astronomia [Firenze]
3 HELIOS - LATMOS
4 OAVdA - Osservatorio Astronomico della Regione Autonoma Valle d'Aosta e il Planetario di Lignan
5 CSL - Centre Spatial de Liège

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.

Domaines: Astrophysique stellaire et solaire [astro-ph.SR]

S. Fineschi, G. Capobianco, G. Massone, R. Susino, L. Zangrilli, et al.. AntarctiCor: Solar Coronagraph in Antarctica for the ESCAPE Project. Il Nuovo Cimento C, 2019, 42 (1), art. 26 (5 p.). ⟨10.1393/ncc/i2019-19026-9⟩. ⟨insu-02377395⟩