On the triggering of a spotless double-ribbon flare

Autor:	S. M. Aleem, R. R. Rausaria, K. Sundara Raman
Rok vydání:	1992
Předmět:	Physics Photosphere Solar flare business.industry Astronomy and Astrophysics Astrophysics Solar physics law.invention Protein filament Optics Space and Planetary Science law Ribbon White light H-alpha sense organs skin and connective tissue diseases business Flare
Zdroj:	Solar Physics. 142:131-141
ISSN:	1573-093X 0038-0938
Popis:	We have studied the evolution of the double-ribbon, spotless flare of 21 February, 1992, using Kodaikanal Hα and Kf1 observations. The analysis of the data shows that the Hα filament underwent a large change in shear prior to the day of the onset of the flare. We find considerable rotation of the plage region before the emergence of a small magnetic pore. It is concluded that shear plays an important role in the triggering of a spotless flare.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fa6b217916875703b38f0b2ef1967815 https://doi.org/10.1007/bf00156637 Zobrazit plný text záznamu Full text from SpringerLink