Results 51 to 60 of about 1,018 (176)

ADVECTIVE TRANSPORT OF INTERSTELLAR PLASMA INTO THE HELIOSPHERE ACROSS THE RECONNECTING HELIOPAUSE [PDF]

open access: yesThe Astrophysical Journal, 2014
We discuss results of magnetohydrodynamical model simulations of plasma dynamics in the proximity of the heliopause (HP). The model is shown to fit details of the magnetic field variations observed by Voyager 1 spacecraft during the transition from the heliosphere to the local interstellar medium (LISM).
Strumik, M.   +4 more
openaire   +2 more sources

NE2025: An Updated Electron Density Model for the Galactic Interstellar Medium

open access: yesThe Astrophysical Journal
Free electrons in the Galactic interstellar medium (ISM) disperse and scatter coherent radio waves, by amounts that depend on the distance to the radio source.
Stella Koch Ocker, James M. Cordes
doaj   +1 more source

Mirror Mode Mediated EMIC Wave Generation in the Magnetosheath

open access: yesGeophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Electromagnetic ion cyclotron (EMIC) waves and mirror modes (MMs), both driven by ion temperature anisotropy, are commonly observed in planetary magnetosheaths. Conventional explanations for their co‐occurrence are largely based on linear instability theory in proton–electron plasmas, which requires comparable growth rates for the EMIC and MM ...
Yifan Wu   +5 more
wiley   +1 more source

Anomalous Radio‐Wave Scattering from Interstellar Plasma Structures [PDF]

open access: yesThe Astrophysical Journal, 2001
This paper considers scattering screens that have arbitrary spatial variations of scattering strength transverse to the line of sight, including screens that are spatially well confined, such as disks and filaments. We calculate the scattered image of a point source and the observed pulse shape of a scattered impulse.
Cordes, J. M., Lazio, T. Joseph W.
openaire   +2 more sources

Loading Non‐Maxwellian Velocity Distributions in Particle Simulations

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Numerical procedures for generating non‐Maxwellian velocity distributions in particle simulations are presented. First, Monte Carlo methods for the (r,q) $(r,q)$ distribution that generalizes flattop and Kappa distributions are discussed. Then, two rejection methods for the regularized Kappa distribution are presented, followed by a comparison
Seiji Zenitani   +2 more
wiley   +1 more source

Plasma Physics of the Very Local Interstellar Medium

open access: yesJournal of Physics: Conference Series, 2015
Models of the large-scale heliosphere show that the very local interstellar medium (VLISM), bounded by the heliopause and either a bow wave or bow shock, experiences significant heating by the deposition of neutral hydrogen (H) originating from the hot inner heliosheath.
G P Zank, P Hunana, P Mostafavi
openaire   +1 more source

Survival of 2D Turbulence in the Local Interstellar Medium

open access: yesThe Astrophysical Journal Letters
The evolution of 2D turbulence in the partially ionized local interstellar medium is investigated using 2D MHD simulations coupled with a neutral hydrogen gas via charge exchange.
Masaru Nakanotani, Gary P. Zank
doaj   +1 more source

Sampling the volcanic plumes at Io: Impact speeds and shock conditions

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 2, Page 241-271, February 2026.
Abstract The desire to sample material from the interior of Io, by flying through its volcanic plumes, requires consideration of the flyby speed and the types of sample collection techniques that can be utilized. Low speed collection (1–2.5 km s−1) would require an orbit around Io itself, which is unlikely due to the accumulated radiation dose that ...
M. J. Burchell   +2 more
wiley   +1 more source

Revealing compact structures of interstellar plasma in the Galaxy with RadioAstron [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2018
15 pages, 12 ...
Fadeev, E. N.   +8 more
openaire   +2 more sources

Collective Plasma Phenomena and their Role in the Dynamics of the Interstellar Medium [PDF]

open access: yesSymposium - International Astronomical Union, 1970
The First Symposium on cosmical gas dynamics clearly demonstrated that magnetic fields play an essential role in the dynamics of the interstellar matter. The Symposium emphasized that the behavior of interstellar gas should be described not by traditional gas dynamics but with the help of magneto-gas dynamics.
B. B. Kadomtsev, V. N. Tsytovich
openaire   +1 more source

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