Results 11 to 20 of about 1,935 (214)

Hybrid Simulations of Positively and Negatively Charged Pickup Ions and Cyclotron Wave Generation at Europa [PDF]

Journal of Geophysical Research: Space Physics, 2017
In the vicinity of Europa, Galileo observed bursty Alfvén-cyclotron wave power at thegyrofrequencies of a number of species including K+,O+2,Na+, and Cl+, indicating the localized pickupof these species.
Ravindra T Desai, Xiangrong Fu, Martin Volwerk   +2 more
exaly   +5 more sources

The inner source for pickup ions [PDF]

AIP Conference Proceedings, 1999
Pickup ions are observed by the Solar Wind Ion Composition Spectrometer on Ulysses which appear to have been picked up close to the Sun. A transport theory for the propagation of these ions is used to constrain the spatial profiles of the ion sources. The composition is like that of the solar wind which suggests that the inner source pickup ions result
Schwadron, Nathan A., Gloeckler, George, Fisk, Lennard A., Geiss, Johannes, Zurbuchen, Thomas H.   +4 more
openaire   +5 more sources

The Pickup Ion Composition Spectrometer [PDF]

Journal of Geophysical Research: Space Physics, 2016
AbstractObservations of newly ionized atoms that are picked up by the magnetic field in the expanding solar wind contain crucial information about the gas or dust compositions of their origins. The pickup ions (PUIs) are collected by plasma mass spectrometers and analyzed for their density, composition, and velocity distribution.
Gilbert, Jason A., Zurbuchen, Thomas H., Battel, Steven   +2 more
openaire   +5 more sources

Determination of interstellar pickup ion distributions in the solar wind with SOHO and Cluster [PDF]

Annales Geophysicae, 1996
Over the last 10 years, the experimental basis for the study of the local interstellar medium has been substantially enhanced by the direct detection of interstellar pickup ions and of interstellar neutral helium within the heliosphere.
E. Möbius, D. Rucinski, P. A. Isenberg, M. A. Lee   +3 more
doaj   +3 more sources

Water-Group Pickup Ions From Europa-Genic Neutrals Orbiting Jupiter. [PDF]

Geophys Res Lett, 2022
Water‐group gas continuously escapes from Jupiter's icy moons to form co‐orbiting populations of particles or neutral toroidal clouds. These clouds provide insights into their source moons as they reveal loss processes and compositions of their parent ...
Szalay JR, Smith HT, Zirnstein EJ, McComas DJ, Begley LJ, Bagenal F, Delamere PA, Wilson RJ, Valek PW, Poppe AR, Nénon Q, Allegrini F, Ebert RW, Bolton SJ.   +13 more
europepmc   +2 more sources

MAVEN insights into oxygen pickup ions at Mars

Geophysical Research Letters, 2015
AbstractSince Mars Atmosphere and Volatile EvolutioN (MAVEN)'s arrival at Mars on 21 September 2014, the SEP (Solar Energetic Particle) instrument on board the MAVEN spacecraft has been detecting oxygen pickup ions with energies of a few tens of keV up to ~200 keV.
Jasper Halekas, Francis Eparvier, Jack Connerney   +2 more
exaly   +2 more sources

A Technique for Retrieving the Exospheric Number Density Distribution from Pickup Ion Ring Distributions [PDF]

The Planetary Science Journal
Ion pickup by the solar wind is ubiquitous in space plasma. Because pickup ions are originally produced by ionization of an exospheric neutral atmosphere, their measurements contain information on the exospheric neutral abundance.
Kei Masunaga, Naoki Terada, François Leblanc, Yuki Harada, Takuya Hara, Shotaro Sakai, Shoichiro Yokota, Kanako Seki, Atsushi Yamazaki, James. P. McFadden, Tomohiro Usui   +10 more
doaj   +2 more sources

Backstreaming Pickup Ions [PDF]

The Astrophysical Journal, 2021
Abstract Ions that are reflected at the shock front and escape back into the upstream region can play the role of ions that start to be accelerated by a diffusive shock acceleration mechanism. Backstreaming ions have been shown to be generated from a superthermal tail of the solar wind at sufficiently high upstream temperatures.
Michael Gedalin, Nikolai V. Pogorelov, Vadim Roytershteyn   +2 more
openaire   +1 more source

Determination of interstellar pickup ion distributions in the solar wind with SOHO and Cluster [PDF]

Annales Geophysicae
Over the last 10 years, the experimental basis for the study of the local interstellar medium has been substantially enhanced by the direct detection of interstellar pickup ions and of interstellar neutral helium within the heliosphere.
E. Möbius, D. Rucinski, P. A. Isenberg, M. A. Lee   +3 more
doaj   +1 more source

The transport of interstellar pickup ions [PDF]

Journal of Geophysical Research: Space Physics, 2001
A new approach to the time‐dependent anisotropic propagation of interstellar pickup ions in the interplanetary medium is presented. The model includes the effects of adiabatic focusing in a radial magnetic field, adiabatic deceleration, anisotropic pitch angle scattering, convection in the solar wind, and the continual injection of newly ionized ...
J. Y. Lu, G. P. Zank
openaire   +1 more source