Zobrazeno 1 - 10
of 956
pro vyhledávání: '"Scherer, Klaus"'
In this work we define the plasma dispersion function for a suprathermal plasma described with a regularized kappa distribution. As is known from Maxwellian as well as (standard) kappa plasmas, the respective Fried-Conte and the modified plasma dispe
Externí odkaz:
http://arxiv.org/abs/2404.10868
The pseudopotential method is used to derive electron hole structures in a suprathermal plasma having a regularized $\kappa$ probability distribution function background. The regularized character allows the exploration of small $\kappa$ values beyon
Externí odkaz:
http://arxiv.org/abs/2310.09081
Autor:
Sterken, Veerle J., Hunziker, Silvan, Dialynas, Kostas, Leitner, Jan, Sommer, Maximilian, Srama, Ralf, Baalmann, Lennart R., Li, Aigen, Herbst, Konstantin, Galli, André, Brandt, Pontus, Riebe, My, Baggaley, Jack, Blanc, Michel, Czechowski, Andrej, Effenberger, Frederic, Fields, Brian, Frisch, Priscilla, Horanyi, Mihaly, Hsu, Hsiang-Wen, Khawaja, Nozair, Krüger, Harald, Kurth, Bill S., Ligterink, Niels F. W., Linsky, Jeffrey L., Lisse, Casey, Malaspina, David, Miller, Jesse A., Opher, Merav, Poppe, Andrew R., Postberg, Frank, Provornikova, Elena, Redfield, Seth, Richardson, John, Rowan-Robinson, Michael, Scherer, Klaus, Shen, Mitchell M., Slavin, Jon D., Sternovsky, Zoltan, Stober, Gunter, Strub, Peter, Szalay, Jamey, Trieloff, Mario
Publikováno v:
RAS Techniques and Instruments, rzad034 (2023)
We discuss the synergies between heliospheric and dust science, the open science questions, the technological endeavors and programmatic aspects that are important to maintain or develop in the decade to come. In particular, we illustrate how we can
Externí odkaz:
http://arxiv.org/abs/2308.10728
Publikováno v:
A&A 664, A132 (2022)
The shape of the ion energy spectra plays a critical role toward determining the ion energetics, the acceleration mechanisms and the possible sources of different plasma and suprathermal ion populations. The determination of the exact shape of the to
Externí odkaz:
http://arxiv.org/abs/2206.01021
Publikováno v:
A&A 663, A67 (2022)
Given their uniqueness, the Ulysses data can still provide us with valuable new clues about the properties of plasma populations in the solar wind, and, especially, about their variations with heliographic coordinates. We revisit the electron data re
Externí odkaz:
http://arxiv.org/abs/2205.05911
Recent studies have outlined the interest for the evaluation of transport coefficients in space plasmas, where the observed velocity distributions of plasma particles are conditioned not only by the binary collisions, e.g., at low energies, but also
Externí odkaz:
http://arxiv.org/abs/2201.05157
Publikováno v:
A&A 654, A99 (2021)
In heliospheric plasmas the transport of energy and particles is governed by various fluxes (e.g., heat flux) triggered by different forces, electromagnetic fields, and gradients in density or temperature. In the outer corona and at relatively low he
Externí odkaz:
http://arxiv.org/abs/2108.11614
Autor:
Baalmann, Lennart R., Scherer, Klaus, Kleimann, Jens, Fichtner, Horst, Bomans, Dominik J., Weis, Kerstin
Publikováno v:
A&A 650, A36 (2021)
Context. While the shapes of many observed bow shocks can be reproduced by simple astrosphere models, more elaborate approaches have recently been used to explain differing observable structures. Aims. By placing perturbations of an otherwise homogen
Externí odkaz:
http://arxiv.org/abs/2104.03748
Observations in space plasmas reveal particle velocity distributions out of thermal equilibrium, with anisotropies (e.g., parallel drifts or/and different temperatures, $T_\parallel$ - parallel and $T_\perp$ - perpendicular, with respect to the backg
Externí odkaz:
http://arxiv.org/abs/2011.08576
Autor:
Fichtner, Horst, Kleimann, Jens, Yoon, Peter H., Scherer, Klaus, Oughton, Sean, Engelbrecht, N. Eugene
Publikováno v:
The Astrophysical Journal, Volume 901, Issue 1, id.76, 7 pp., 2020
Measurements made with the Voyager 1 spacecraft indicate that significant levels of compressive fluctuations exist in the inner heliosheath. Some studies have already been performed with respect to the mirror-mode instability in the downstream region
Externí odkaz:
http://arxiv.org/abs/2010.04264