Other
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011spd....42.1701k&link_type=abstract
American Astronomical Society, SPD meeting #42, #17.01; Bulletin of the American Astronomical Society, Vol. 43, 2011
Other
Scientific paper
Understanding the mechanism of acoustic waves excitation in the turbulent surface layer is very important for the interpretation of helioseismology data and development of new methods of helioseismic diagnostics of the solar interior, as well as for understanding of the role of the acoustic flux in the energy transport. A substantial progress is being made from the analysis of high-resolution observational data, particularly from Hinode, Sunrise, and SDO/HMI, and also from high-resolution realistic numerical simulations. The simulations take into account all essential turbulent and other physical properties of the solar plasma, and allow us to look at the scales that cannot be resolved in observations, and also compare the data and models. We present new results of 3D radiative hydrodynamics simulations of the upper convection zone and atmosphere, and show that one of the possible mechanisms of the acoustic waves generation is a result of interaction two and more vortex tubes. The process of a vortex annihilation, which produces acoustic waves, the properties of these waves and vortices, and comparison with the available observational data will be discussed.
Kitiashvili Irina
Kosovichev Aleksandr G.
Lele Sanjiva K.
Mansour Nagi N.
Wray Alan A.
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