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  • Anomalous transport of cosmic rays in a nonlinear diffusion model

    Litvinenko, Yuri E.; Fichtner, Horst; Walter, Dominik (The American Astronomical Society, 2017)
    We investigate analytically and numerically the transport of cosmic rays following their escape from a shock or another localized acceleration site. Observed cosmic-ray distributions in the vicinity of heliospheric and ...
  • The IBEX ribbon as a signature of the inhomogeneity of the local interstellar medium

    Fichtner, Horst; Scherer, Klaus; Effenberger, Frederic; Zönnchen, Jochen; Schwadron, Nathan; McComas, David J. (2014)
    Context. A new hypothesis is offered to explain the so-called ribbon feature appearing in the all-sky flux maps of energetic neutral atoms presently observed with the IBEX spacecraft, namely that the ribbon is a consequence ...