Turbulence Heating ObserveR - satellite mission proposal

A. Vaivads 1 Alessandro Retinò 2 J. Soucek 3 Yu. V. Khotyaintsev 1 F. Valentini 4 C. Philippe Escoubet 5 O. Alexandrova 6 M. André 1 S. D. Bale 7 M. A. Balikhin 8 D. Burgess 9 E. Camporeale 10 D. Caprioli 11 C. H. K. Chen 12 E. Clacey C. M. Cully 13 J. de Keyser 14 Jonathan P. Eastwood 12 A. N. Fazakerley 15 S. Eriksson 16 M. L. Goldstein 17 D. B. Graham 1 S. Haaland 18 M. Hoshino 19 H. Ji 11, 20 H. Karimabadi H. Kucharek 21 B. Lavraud 22 F. Marcucci 23 W. H. Matthaeus 24 T. E. Moore 17 R. Nakamura 25 Y. Narita 25 Z. Nemecek 26 C. Norgren 1 H. Opgenoorth 5 M. Palmroth 27 D. Perrone 28 Jean-Louis Pinçon 29 P. Rathsman H. Rothkaehl 30 Fouad Sahraoui 2 S. Servidio L. Sorriso-Valvo 31 R. Vainio 32 Z. Vörös 33 R. F. Wimmer-Schweingruber 34
27 Earth Observation Unit [Helsinki]
FMI - Finnish Meteorological Institute
Abstract : The Universe is permeated by hot, turbulent, magnetized plasmas. Turbulent plasma is a major constituent of active galactic nuclei, supernova remnants, the intergalactic and interstellar medium, the solar corona, the solar wind and the Earth's magnetosphere, just to mention a few examples. Energy dissipation of turbulent fluctuations plays a key role in plasma heating and energization, yet we still do not understand the underlying physical mechanisms involved. THOR is a mission designed to answer the questions of how turbulent plasma is heated and particles accelerated, how the dissipated energy is partitioned and how dissipation operates in different regimes of turbulence. THOR is a single-spacecraft mission with an orbit tuned to maximize data return from regions in near-Earth space - magnetosheath, shock, foreshock and pristine solar wind - featuring different kinds of turbulence. Here we summarize the THOR proposal submitted on 15 January 2015 to the `Call for a Medium-size mission opportunity in ESAs Science Programme for a launch in 2025 (M4)'. THOR has been selected by European Space Agency (ESA) for the study phase.
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A. Vaivads, Alessandro Retinò, J. Soucek, Yu. V. Khotyaintsev, F. Valentini, et al.. Turbulence Heating ObserveR - satellite mission proposal. Journal of Plasma Physics, Cambridge University Press (CUP), 2016, 82 (5), 905820501 (16 p.). ⟨10.1017/S0022377816000775⟩. ⟨hal-01551962⟩



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