Oral Presentation

Electrostatic and electromagnetic streaming instabilities in the electron-positron plasma

Author(s): C.-S. Jao (DESY, Zeuthen, Germany)

Presenter: Chun-Sung Jao (Deutsches Elektronen-Synchrotron (DESY))

Electrostatic and electromagnetic instabilities driven by an energetic electron or proton beam are generally reported in the space, astrophysical, and laboratory plasmas. In particular, the crucial role of streaming instability is shown in numerous astrophysical circumstances such as solar radio bursts, pulsar radio emission, supernova remnants, and so on. Via the beam-plasma interaction processes, the drift energy of streaming particles can lead to the plasma wave excitation. In order to incorporate the nonlinear wave-particle interaction processes, particle-in-cell (PIC) simulations are mostly employed in the numerical studies. In this talk, the formation of electrostatic solitons and the electromagnetic firehose-type instabilities associated with significant growth of magnetic-field perturbations in electron-positron plasma system would be present based on the linear plasma fluid theory and nonlinear PIC simulations.