Influence of longitudinal structure in the fast modes of prominence threads

Details Influence of longitudinal structure in the fast modes of prominence threads Influence of longitudinal structure in the fast modes of prominence threads

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008iaus..247..167d&link_type=abstract

Waves & Oscillations in the Solar Atmosphere: Heating and Magneto-Seismology, Proceedings of the International Astronomical Unio

Astronomy and Astrophysics

Astronomy

1

Waves, Sun: Atmosphere, Sun: Corona, Sun: Oscillations

Scientific paper

Recent high-resolution observations have pointed out that prominences are made of small threads (also named fibrils) piled up to form the body of the prominence. These fine structures also seem to support their own oscillatory modes, while their effect on the global modes of the prominences are less certain. We study the effect of adding a smooth transition layer between the prominence material and the corona along the magnetic field line, since previous studies have considered a jump in density in this interface. Then we compare the results with previous models and check that these transition layers do not affect significantly the periods of the modes.

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