Ejections and Oscillations in Solar Chromosphere and Corona

Details Ejections and Oscillations in Solar Chromosphere and Corona Ejections and Oscillations in Solar Chromosphere and Corona

Oct 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999esasp.446..127a&link_type=abstract

8th SOHO Workshop: Plasma Dynamics and Diagnostics in the Solar Transition Region and Corona. Proceedings of the Conference hel

Computer Science

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Scientific paper

This is attempt to summarize briefly the results of ten-years numerical investigations of (i) launching mechanismes of coronal and chromospheric ejections, (ii) solar chromospheric oscillations and (iii) their interaction with the transition region and (4) their input into the solar coronal heating. Recent results are included. The results of observations from SOHO coronal instruments and Tower Solar Telescope of Crimean Astrophysical Observatory (and some others) were used. The results of numerical simulations are in a good agreement with observational ones. The main conclusions are: 1. The most probable launching mechanism of chromospheric ejections is a piston-like one. The role of piston can play, for example, the shock wave, produced by explosion, or by strengthening of sound wave, etc. 2. Solar chromospheric oscillations can produce small scale chromospheric ejections, rising the TR up to 6-8 Mm; 3. Chromospheric ejection is self-consistent process considerably depended on interaction on internal (inside ejection) oscillations with the TR. 4. The input of small-scale chromospheric ejections into the coronal heating can be comparable with the coronal heating due to CME's. aturally to the formation of cool condensations and to their observed motions.

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