Solar Gamma-Ray Flares and Activity Complexes

Autor:	S. A. Yazev, E. S. Isaeva, V. M. Tomozov
Rok vydání:	2020
Předmět:	Physics 010308 nuclear & particles physics Astrophysics::High Energy Astrophysical Phenomena Gamma ray Coronal hole Astronomy and Astrophysics Astrophysics Extended phase 01 natural sciences law.invention Particle acceleration Space and Planetary Science law Physics::Space Physics 0103 physical sciences Coronal mass ejection Astrophysics::Solar and Stellar Astrophysics 010303 astronomy & astrophysics Flare
Zdroj:	Astronomy Reports. 64:722-730
ISSN:	1562-6881 1063-7729
Popis:	Strong flare events with an extended phase of gamma ray emission from the catalog by Share et al. have been analyzed in order to explain the characteristics of the impulsive and extended phases of such flares and reveal their connection with activity complexes and coronal holes. It is shown that 74% of such events are closely related to activity complexes. It has been qualitatively demonstrated that the particle acceleration processes during the flare development are associated with the changes in the magnetic topology of the flare region and the evolution of the coronal mass ejection. The possible relation of coronal holes to activity complexes and the role of “exchange” reconnection in these processes are discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::577a34332fbeefa5d77566544005f83c https://doi.org/10.1134/s1063772920090073 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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