title: Wake behind dust grains in flowing plasmas with a directed photon flux.
abstract: The wake behind conducting dust grains in a supersonic plasma flow with a directed photon flux is studied by the particle-in-cell method. The electron emission leads to a positive charge on the dust. The resulting plasma wake differs significantly from the case without photoelectrons. This wake is studied for different photon fluxes and different angles between the incoming unidirectional photons and the plasma flow velocity. The simulations are carried out in two spatial dimensions, treating ions and electrons as individual particles.
authors.affiliation: Institute of Theoretical Astrophysics, University of Oslo, Box 1029 Blindern, N-0315 Oslo, Norway.
authors.forename: W J
authors.initials: WJ
authors.lastname: Miloch
authors.forename: S V
authors.initials: SV
authors.lastname: Vladimirov
authors.forename: H L
authors.initials: HL
authors.lastname: Pécseli
authors.forename: J
authors.initials: J
authors.lastname: Trulsen