SH004
Compressible Turbulence, Density Fluctuations and Their Implications for Heliospheric Plasmas
Session ID#: 160748
Session Description:
While plasma turbulence is compressible, in general, most existing knowledge of turbulence still relies on incompressible physics with a constant density. Observationally, density fluctuations and compressive waves have been detected in the solar corona, solar wind, planetary magnetospheres, and the interstellar medium, pointing to the ubiquitous presence of compressible turbulence. The richness of turbulence physics is expanded greatly by compressible processes such as shocks, compressive waves, pseudo sound, parametric decay instability, etc. How turbulence is mediated by these compressible processes is a key question for understanding not only the turbulence itself, but also the underlying plasma and energetic particle dynamics. We solicit theoretical, numerical, and observational researches that contribute to the understanding of compressible turbulence and its implications for various space plasma environments.
Index Terms:
7839 Nonlinear phenomena [SPACE PLASMA PHYSICS]
7844 Parametric processes [SPACE PLASMA PHYSICS]
7851 Shock waves [SPACE PLASMA PHYSICS]
7863 Turbulence [SPACE PLASMA PHYSICS]
Primary Convener: Senbei Du, Los Alamos National Laboratory, Los Alamos, NM, United States
Conveners: Zhaoming Gan, New Mexico Consortium, Los Alamos, United States and Rohit Chhiber, University of Delaware, Department of Physics and Astronomy, Newark, DE, United States
Density Fluctuation of Compressible Turbulence in the Solar Wind Near the Sun (1149348)
Xiangrong Fu1, Hui Li2, Zhaoming Gan3, Senbei Du4, John T Steinberg5, Manuel Enrique Cuesta6, Rohit Chhiber6 and William H Matthaeus6, (1)New Mexico Consortium, Los Alamos, NM, United States, (2)Los Alamos National Lab, Los Alamos, NM, United States, (3)New Mexico Consortium, Los Alamos, United States, (4)Los Alamos National Laboratory, Los Alamos, United States, (5)Los Alamos National Laboratory, Los Alamos, NM, United States, (6)University of Delaware, Department of Physics and Astronomy, Newark, DE, United States
Compressible Plasma Turbulence at Comet 67P (1171677)
Elias Odelstad1, Luca Sorriso-Valvo1, Anders I Eriksson1 and Tomas Karlsson2, (1)IRF Swedish Institute of Space Physics Uppsala, Uppsala, Sweden, (2)KTH Royal Institute of Technology, Division of Space and Plasma Physics, Stockholm, Sweden
Compressible Turbulence in the Heliosheaths: Spectral Properties of Plasma and Magnetic Field Fluctuations (1180524)
Federico Fraternale, University of Alabama in Huntsville, Center for Space Plasma and Aeronomic Research, Huntsville, AL, United States, Nikolai V Pogorelov, University of Alabama in Huntsville, Department of Space Science, Huntsville, United States, John D Richardson, MIT, Cambridge, MA, United States and Daniela Tordella, Politecnico di Torino, Department of Applied Science and Technology, Torino, Italy
Compressible turbulence in the planetary magnetosheaths and the solar wind: spectral properties and estimation of the turbulent cascade rate (Invited) (1050402)
Lina Hadid1, Nahuel Andrés2, Fouad Sahraoui3, Sébastien Galtier3, Shiyong Huang4, Norberto Romanelli5,6, Vincent David7, Gina A DiBraccio8, Jasper S Halekas9 and Pablo Dmitruk10, (1)Laboratory of Plasma Physics, École Polytechnique, CNRS, Palaiseau, France, (2)Physics Department, University of Buenos Aires (UBA), Buenos Aires, Argentina, (3)Laboratoire de Physique des Plasmas, Palaiseau, France, (4)Wuhan University, Wuhan, China, (5)LATMOS, Université Pierre et Marie Curie, Paris, France, (6)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (7)Laboratoire de Physique des Plasmas, Saint-Maur Des Fossés Cedex, France, (8)University of Michigan, Ann Arbor, United States, (9)University of Iowa, Department of Physics and Astronomy, Iowa City, IA, United States, (10)Consejo Nacional de Investigaciones Científicas y Técnicas - Phys. Dept. UBA, Departamento de Física - UBA, Buenos Aires, Argentina
Density Fluctuations in the Solar Wind at and Below Proton Kinetic Scales. (Invited) (1078088)
Owen W Roberts1, Rumi Nakamura1, Klaus Torkar1, Zoltan Voros1, Yasuhito Narita2, Luca Sorriso-Valvo3, Daniel Graham3, Yuri Khotyaintsev3 and Du Toit Strauss4, (1)Space Research Institute, Austrian Academy of Sciences, Graz, Austria, (2)Austrian Academy of Sciences, Space Research Institute, Graz, Austria, (3)IRF Swedish Institute of Space Physics Uppsala, Uppsala, Sweden, (4)North West University, Center for Space Research, Potchefstroom, South Africa
Statistics of Total Pressure in Kinetic Plasma Turbulence (1084727)
Subash Adhikari1, Tulasi Parashar2, William H Matthaeus1 and Michael A Shay3, (1)University of Delaware, Department of Physics and Astronomy, Newark, DE, United States, (2)Victoria University of Wellington, Wellingon, New Zealand, (3)Department of Physics and Astronomy, University of Delaware, Newark, United States
