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Signatures of localised particle acceleration at a global coronal shock wave

Cuddy, C., Long, David M. orcid logoORCID: 0000-0003-3137-0277, Nedal, M., Bhunia, S. and Gallagher, P.T. (2026) Signatures of localised particle acceleration at a global coronal shock wave. Astronomy and Astrophysics, 709 . ISSN 1432-0746

Abstract
Extreme ultraviolet (EUV) waves are global waves in the solar corona which can accelerate particles. The efficiency of this acceleration depends on local plasma characteristics such as the Alfvén speed and the geometry of the magnetic field. This shock-driven particle acceleration can produce radio signatures such as Type II radio bursts and herringbone emission. Aims. Here we investigate signatures of particle acceleration by a weak coronal shock on 10 March 2024. In particular, we combine EUV images with radio imaging and spectral observations to determine how and where this weak shock could accelerate energetic particles.
Metadata
Item Type:Article (Published)
Refereed:Yes
Uncontrolled Keywords:Sun corona; coronal mass ejections (CMEs); particle emission; radio radiation; Solar and Stellar Astrophysics
Subjects:Physical Sciences > Astronomy
Physical Sciences > Astronomy > Astrophysics
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Science and Health
DCU Faculties and Schools > Faculty of Science and Health > School of Physical Sciences
Publisher:EDP Sciences
Official URL:https://www.aanda.org/articles/aa/full_html/2026/0...
Copyright Information:Authors
ID Code:33327
Deposited On:17 Sep 2026 08:42 by David Long . Last Modified 17 Sep 2026 08:42
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