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Solar flare-related eruptions followed by long-lasting occultation of the emission in the He II 304 Å line and in microwaves View all abstracts by submitter

Victor Grechnev   Submitted: 2011-03-24 17:23

Plasma with a temperature close to the chromospheric one is ejected in solareruptions. Such plasma can occult some part of emission of compact sources inactive regions as well as quiet solar areas. Absorption phenomena can beobserved in the microwave range as the so-called 'negative bursts' and also inthe He II 304 Å line. The paper considers three eruptive events associated withrather powerful flares. Parameters of absorbing material of an eruption areestimated from multi-frequency records of a 'negative burst' in one event.'Destruction' of an eruptive filament and its dispersion like a cloud over ahuge area observed as a giant depression of the 304 Å line emission has beenrevealed in a few events. One such event out of three ones known to us isconsidered in this paper. Another event is a possibility.

Authors: V. V. Grechnev, I. V. Kuzmenko, I. M. Chertok, A. M. Uralov

Publication Status: 2011 Accepted by Astronomy Reports
Last Modified: 2011-04-10 22:26
Go to main E-Print page  Observing Flux Rope Formation During the Impulsive Phase of a Solar Eruption  Time--Distance Helioseismology Data Analysis Pipeline for Helioseismic and Magnetic Imager onboard Solar Dynamics Observatory (SDO/HMI) and Its Initial Results  Edit Entry  Download Preprint  Submitter's Homepage Delete Entry 

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