Do, 01.03.2018 0:00

Magnetosheath plasmoids at Earth and Mercury

Ein Vortrag von Tomas Karlson (KTH Royal Institute of Technology, Stockholm) im Rahmen der IWF-Seminarreihe Winter/Frühjahr 2018

Recently there has been an increased interest in transient, localized increases in plasma density and flow velocity in Earth’s magnetosheath. Such enhancements have been studied under several different designations, e.g. magnetosheath jets or plasmoids. The latter designation specifically refers to the presence of clear magnetic signatures associated with localized density increases. These transients have been suggested to be universally present in planetary magnetospheres. As a first check of that hypothesis, we present results from the Mercury magnetosheath and near solar wind, using MESSENGER magnetic field data from the MAG instrument (and ion data from the Fast Imaging Plasma Spectrometer (FIPS) instrument for contextual information). We discuss the findings and some of their consequences pertaining to the different nature of the quasi-parallel bow shocks at Mercury and Earth.



Tomas Karlson
KTH Royal Institute of Technology, Stockholm

15. März 2018, 14.00 Uhr

Vortragssaal U.d.6, Untergeschoss


Seminare Winter/Frühjahr 2018