Study of a coronal mass ejection-driven shock in the low solar corona

Frassati, F. and Mancuso, S. and Bemporad, A. and Barghini, D. (2021) Study of a coronal mass ejection-driven shock in the low solar corona. Il nuovo cimento C, 44 (2-3). pp. 1-4. ISSN 1826-9885

Text ncc12155.pdf - Published Version Download (354kB)

Abstract

The characterization of coronal shock waves driven by energetic coronal mass ejections (CMEs) is an important topic in solar physics. In this work, we explore how the analysis of simultaneous data obtained from both extreme ultraviolet (EUV) and radio observations can be successfully used to investigate the physics of CME-driven shocks in the low solar corona. In particular, we analyzed EUV and radio observations of an eruption that propagated above the solar limb on 2014 October 30 and was accompanied by a type-II radio burst, which represents the signature of a coronal shock wave. The analysis of the combined EUV and radio data allowed us to unravel the controversial origin of band-splitting in type-II radio bursts. Moreover, we obtained estimates of important plasma parameters, such as the density compression ratio and the plasma temperature. Finally, the geometry of the CME/shock event was recovered through data-driven 3D modelling.

Item Type:	Article
Subjects:	500 Scienze naturali e Matematica > 530 Fisica
Depositing User:	Marina Spanti
Date Deposited:	19 Jul 2021 10:09
Last Modified:	19 Jul 2021 10:09
URI:	http://eprints.bice.rm.cnr.it/id/eprint/21313

Actions (login required)

View Item