2007/06/07 by R. Mecheri, E. Marsch · 9 citations
Physics and Astronomy · #Beam (structure) #Coronal hole #Coronal loop #Coronal plane #Excitation #Ion #Ionosphere and magnetosphere dynamics #Magnetic confinement fusion research #Mechanism (biology) #Plasma #Solar and Space Plasma Dynamics #Solar wind #astro-ph
paper · pdf · doi:10.1051/0004-6361:20077648
published in Astronomy and Astrophysics 474(2), 609-615 (EDP Sciences) · 8 pages, 6 figures, submitted to A&A
arxiv created 2007/06/07 · openalex publication_date 2007/08/06 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Context.Spectroscopic observations and theoretical models suggest resonant wave-particle interactions, involving high-frequency ion-cyclotron waves, as the principal mechanism for heating and accelerating ions in the open coronal holes. However, the mechanism responsible for the generation of the ion-cyclotron waves remains unclear. One possible scenario is that ion beams originating from small-scale reconnection events can drive micro-instabilities that constitute a possible source for the excitation of ion-cyclotron waves.