HiRISE - High-Resolution Imaging and Spectroscopy Explorer - Ultrahigh resolution, interferometric and external occulting coronagraphic science

• DOI: 10.1007/s10686-022-09831-2
• Publication Date: 2022-03-05T17:02:34Z
• Authors: Robertus Erdélyi; Luc Damé; Andrzej Fludra; Mihalis Mathioudakis; T. Amari; B. Belucz; F. Berrilli; S. Bogachev; D. Bolsée; V. Bothmer; S. Brun; S. Dewitte; T. Dudok de Wit; M. Faurobert; L. Gizon; N. Gyenge; M. B. Korsós; N. Labrosse; S. Matthews; M. Meftah; H. Morgan; P. Pallé; P. Rochus; E. Rozanov; B. Schmieder; K. Tsinganos; E. Verwichte; S. Zharkov; F. Zuccarello; R. Wimmer-Schwein...
• Keywords: Chromosphere; Corona (planetary geology); Coronagraph; Planetary science; Imaging Spectroscopy; Photosphere; Orbiter; Spectral resolution

Abstract Recent solar physics missions have shown the definite role of waves and magnetic fields deep in inner corona, at chromosphere-corona interface, where dramatic physically dominant changes occur. HiRISE (High Resolution Imaging Spectroscopy Explorer), ambitious new generation ultra-high resolution, interferometric, coronagraphic, mission, proposed response to ESA Voyage 2050 Call, would address these issues provide best-ever most complete observatory, capable spatial, spectral, temporal resolution observations atmosphere, from photosphere insights interior core photosphere. HiRISE, L1 Lagrangian point, meter class FUV imaging spectro-imaging, EUV XUV spectroscopy, measurements, comprehensive coronagraphy by a remote external occulter (two satellites formation flying 375 m apart, with coronagraph on chaser satellite). This major state-of-the-art payload allow us characterize temperatures, densities, velocities upper chromosphere, transition zone, corona with, particular, 2D very high multi-spectral imaging-spectroscopy, and, direct coronal field measurement, thus providing unique set tools understand structure onset heating. HiRISE’s objectives are natural complements Parker Solar Probe Orbiter-type missions. We present science case for which will address: i) fine interface spectroscopy resolution; ii) heating roots externally-occulted coronagraphy; iii) resolved global helioseismology thanks continuity stability observing Lagrange point; iv) variability space climate addition, view UV variability.