Participants
Robert Erdélyi Yuriy Taroyan Mark Wardle A. Raouak Dmitry Bisikalo Yavor Shopov Alexander Dolgov Inna Dolgova Yasuko Honda Aglika Sawtchenko Rossitsa Miteva Gottfried Mann Roumyana Mitzeva Ilia Roussev Yana Maneva  Georgi Manev Todor Mishonov Michael Ruderman Larissa Ruderman Gunnar Hornig Sergej Moiseenko Thierry Dudok de Wit Madalina Vlad Florin Spineanu Vyacheslav Zhuravlev Nikolai Shakura Alexander Oreshko Krassimira Iankova Pavel Kaygorodov M. Vellante Diana Stoykova Lyuba Boundova Miglena Milcheva Dessislava Torbova Milena Mineva Borislav Petkov Nikolay Tankovski Petko Nenovski Ivan Zhelyazkov

In the wake of the Bulgarian URSI activities, the Commission H (Waves in Plasmas) organizied a School/Workshop on Waves and Turbulence Phenomena in Space Plasmas. Plasmas throughout the Universe interact with magnetic fields, electromagnetic radiations and waves. Electromagnetic interaction is exemplified by coupling the planetary ionosphere and magneto­sphere by electric currents aligned with the planet’s magnetic field. Electromagnetic coupling is also believed to be important in stellar formation through the redistribution of the angular momentum between the protostar and the surrounding nebular material. Magnetohydrodynamic turbulence is a classic example of the way in which magnetized plasmas couple strongly across multiple spatial and temporal scales.  In turbulent coupling, energy is fed into the largest scales, and then progressively flows down to smaller scales, eventually reaching the “dissipation scale,” where the heating of plasma occurs.  Turbulence has been most completely studied in the solar wind, but questions remain concerning the detailed structure of heliospheric turbulence and how this structure affects energetic particle scattering and acceleration. Turbulent processes also occur in the Sun’s chromosphere as well as in the Earth’s magnetosphere and magnetotail. Outstanding problems include the role of turbulence in transport across boundary layers, the onset of turbulence in thin current sheets, and the coupling of micro-turbulence to large-scale disturbances.

That event was organized by the Bulgarian Academy of Sciences and St Clement of Ohrid University at Sofia (shortly Sofia University) within the framework of the Bulgarian URSI Committee and held at the Sofia University Guest Houses in Kiten – a small resort at Bulgarian Black Sea cost.

The invited and contributed talks are uploaded here and some of them are published as web-proccedings papers.

Scientific topics:

•  Linear and nonlinear waves in astrophysical plasmas

•  Oscillations and waves in the solar atmosphere

•  Waves in solar–terrestrial influence

•  The problem of “missing viscosity” in astrophysics Shakura–Sunyaev phenomenology;  Accretion disks; Quasars

•  Charged particle accelerations to high energies by nonlinear  wave phenomena

•  Waves in shear flows

•  Common trends in astrophysical and planetary atmospheres’ turbulences