Sökning: "Andreas Johlander"

Hittade 2 uppsatser innehållade orden Andreas Johlander.

  1. 1. The formation of the ion seed population at quasi-parallel shocks in space plasma

    Master-uppsats, Uppsala universitet/Rymd- och plasmafysikUppsala universitet/Institutet för rymdfysik, Uppsalaavdelningen

    Författare :Andreas Johlander; [2014]
    Nyckelord :;

    Sammanfattning : Collisionless shocks in space plasmas are known to be capable of accelerating particles to very high energies. Particles are accelerated through a process called Fermi acceleration. However, this process can only act on particles with higher than thermal (suprathermal) energies. LÄS MER

  2. 2. Photoemission on the Rosetta spacecraft

    Kandidat-uppsats, Uppsala universitet/Institutet för rymdfysik, Uppsalaavdelningen

    Författare :Andreas Johlander; [2012]
    Nyckelord :photoemission; rosetta; langmuir probe; space;

    Sammanfattning : Rosetta is a European spacecraft that will rendevouz with andfollow the comet 67P/Churyumov-Gerasimenko from 2014 to 2015. Among other instruments are two Langmuir probes that measure certain plasma parameters. This study aims to describe the photoemssionon Rosetta and in particular on the Langmuir probes. LÄS MER

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