Results 81 to 90 of about 642,648 (176)
PUI Acceleration at an Oblique Heliospheric Termination Shock: 2D Hybrid Kinetic Simulation
The Astrophysical Journal LettersWe investigate the acceleration of pickup ions (PUIs) at an oblique heliospheric termination shock (HTS) using 2D kinetic hybrid simulations. The background magnetic field, B _0 , is set in-plane and makes an angle of Θ _Bn = 50° with respect to the ...
Masaru Nakanotani +3 more
doaj +1 more source
In Situ Observations of Interstellar Pickup Ions from 1 au to the Outer Heliosphere. [PDF]
Space Sci Rev, 2022 Zirnstein EJ +7 more
europepmc +1 more source
Thermodynamics of Pickup Ions in the Heliosphere
The Astrophysical JournalThe paper shows the thermodynamic nature of the evolution of the pickup ion (PUI) distributions through their incorporation and subsequent expansion as the solar wind moves outward through the heliosphere.
G. Livadiotis +2 more
doaj +1 more source
Transport of cross helicity and radial evolution of alfvenicity in the solar wind [PDF]
, 2004 A transport theory including cross helicity, magnetohydrodynamic(MHD) turbulence, and driving by shear and pickup ions, is applied to the radial evolution of the solar wind.
Matthaeus, William H. +5 more
core +2 more sources
Theoretical studies of the solar atmosphere and interstellar pickup ions [PDF]
, 1994 Solar atmosphere research activities are summarized. Specific topics addressed include: (1) coronal mass ejections and related phenomena; (2) parametric instabilities of Alfven waves; (3) pickup ions in the solar wind; and (4) cosmic rays in the outer ...
core
Convergent Heavy-ion Plume from the Martian Ionosphere
The Astrophysical JournalIon escape is a key consequence of the solar wind interaction with Mars, yet the three-dimensional structure of the heavy-ion plume, a major escape channel, remains poorly constrained.
Fuhao Qiao +12 more
doaj +1 more source
Pickup Ions at Dione and Enceladus
, 2002 Voyager images of the icy satellites of Saturn, Dione and Enceladus, suggest they have been geologically active and are not only composed of ice. Recent observations by HST have shown the presence of ozone at both Dione and Rhea which also implies the ...
Nordholt, J. E. +7 more
core
The Astrophysical JournalCollisionless magnetic reconnection is postulated to be active in many regions of the heliosphere, where the physics and formation of heliospheric structures are influenced by pickup ions (PUIs).
P. S. Pyakurel +7 more
doaj +1 more source
Ion dynamics in quasi-perpendicular collisionless interplanetary shocks: A case study
Frontiers in Physics, 2013 Interplanetary shocks are believed to play an important role in the acceleration of charged particles in the heliosphere. While the acceleration to high energies proceeds via the diffusive mechanism at the scales exceeding by far the shock width, the ...
Michael eGedalin, Wolfgang eDroege
doaj +1 more source
Hybrid Simulations of Interstellar Pickup Ions at the Solar Wind Termination Shock Revisited
The Astrophysical JournalWe revisit previous hybrid simulations of the heating and acceleration of interstellar pickup ions (PUIs) at the solar wind termination shock. In previous simulations, a relatively cold initial distribution of PUIs was assumed; and while the resulting ...
Joe Giacalone +7 more
doaj +1 more source