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Photometric Comparison of Metis and LASCO-C2 Polarized Brightness Images
Susino, Roberto; Romoli, Marco; Burtovoi, Aleksandr +15 more
The Metis coronagraph onboard Solar Orbiter and the LASCO-C2 coronagraph onboard SoHO both acquire white light polarized brightness (pB) images of the solar corona. When the Sun–Solar Orbiter distance is less than 0.85 AU, i.e., outside orbital segments around aphelia, the range of elongations covered by the fields-of-view of the two instruments o…
Mysteries of the 17 May 2012 Solar Event Responsible for GLE71: II. Features of the Flare and Its Atypical Microwave Emission
Grechnev, V. V.; Lysenko, A. L.; Kiselev, V. I. +2 more
As known, large near-Earth proton enhancements usually occur after major eruptive solar flares accompanied by strong microwave bursts. Typically, the spectral-maximum frequency of such a burst exceeds 10 GHz, and the flux exceeds
On the Hierarchical Relationship Between Type-II Radio Bursts and the Associated Coronal Mass Ejections
Gopalswamy, N.; Yashiro, S.; Mäkelä, P. +3 more
Using Type-II radio bursts from Wind/WAVES and the associated coronal mass ejections (CMEs) from SOHO/LASCO, Gopalswamy et al. (2005) found a hierarchical relationship between the wavelength range of the Type-II bursts and the CME kinetic energy. Under 'DH (Decametric–Hectometric) Type-II bursts', they have included m (metric)-DH, pure DH, and DH-…