Magnetosheath Filamentary Structures

Thursday, 18 December 2014
Diana Ivett Rojas-Castillo1, Xochitl Blanco-Cano1, Nojan Omidi2 and Primoz Kajdic3, (1)UNAM, Instituto de Geofisica, Distrito Federal, Mexico, (2)Solana Scientific Inc., Solana Beach, CA, United States, (3)European Space Research and Technology Centre, Noordwijk, Netherlands
The terrestrial magnetosheath is full of highly perturbed plasma. The inhomogeneity of this region leads to temperature anisotropies that can originate waves; e.g, mirror mode and ion cyclotron waves. Other structures like the magnetosheath filamentary structures (MFS) can also be present. These are structures reported from results of global hybrid simulations by Omidi et al. (2014) that are formed in the quasi-parallel region of the bow shock and they are convected into the magnetosheath. The MFS are characterized by field aligned enhancements of density and temperature that are anti-correlated. In this work we analyze magnetic field and plasma data from the THEMIS mission to explore the possible existence of MFS.