Results 31 to 40 of about 40,059 (211)

Survey of pickup ion signatures in the vicinity of Titan using CAPS/IMS [PDF]

open access: yes, 2016
Pickup ion detection at Titan is challenging because ion cyclotron waves are rarely detected in the vicinity of the moon. In this work, signatures left by freshly produced pickup heavy ions (m/q ∼ 16 to m/q ∼ 28) as detected in the plasma data by the ...
Coates, AJ   +7 more
core   +1 more source

Turbulence Driving by Interstellar Pickup Ions in the Outer Solar Wind

open access: yesThe Astrophysical Journal, 2023
We revisit the question of how the unstable scattering of interstellar pickup ions (PUIs) may drive turbulence in the outer solar wind and why the energy released into fluctuations by this scattering appears to be significantly less than the standard ...
Philip A. Isenberg   +2 more
doaj   +1 more source

The temporal and latitudinal dependences of turbulence driven by pickup ions in the outer heliosphere

open access: yesFrontiers in Astronomy and Space Sciences, 2023
The distribution of turbulence in the heliosphere remains a mystery, due to the complexity in not only modeling the turbulence transport equations but also identifying the drivers of turbulence that vary with time and spatial location.
Bingbing Wang   +8 more
doaj   +1 more source

INTERSTELLAR PICKUP ION PRODUCTION IN THE GLOBAL HELIOSPHERE AND HELIOSHEATH [PDF]

open access: yesThe Astrophysical Journal, 2016
ABSTRACT Interstellar pickup ions (PUIs) play a significant part in mediating the solar wind (SW) interaction with the interstellar medium. In this paper, we examine the details of spatial variation of the PUI velocity distribution function (VDF) in the SW by solving the PUI transport equation. We assume the PUI distribution is isotropic
Y. Wu, V. Florinski, X. Guo
openaire   +2 more sources

Lifetimes of C-60(2-) and C-70(2-) dianions in a storage ring [PDF]

open access: yes, 2006
C-60(2-) and C-70(2-) dianions have been produced by electrospray of the monoanions and subsequent electron pickup in a Na vapor cell. The dianions were stored in an electrostatic ring and their decay by electron emission was measured up to 1 s after ...
Andersen, J. U.   +12 more
core   +2 more sources

On the origin of inner-source pickup ions

open access: yesGeophysical Research Letters, 2003
In situ measurements of pickup ions (PUI) exhibit a component that has nearly thermalized with the solar wind. This implies an origin close to the Sun and is generally ascribed to interaction of the solar wind with interplanetary dust particles (IDPs).
Wimmer-Schweingruber, Robert F.   +1 more
openaire   +3 more sources

Effects of Neutral Particles on Modified Shocks at Supernova Remnants

open access: yes, 2010
H-alpha emission from supernova remnants (SNRs) implies the existence of neutral hydrogens in the ambient medium. In the precursor of an SNR shock modified by cosmic rays (CRs), upstream plasmas are pushed by the CR pressure, but neutral particles are ...
Abdo   +20 more
core   +1 more source

Observations of interstellar helium pickup ions in the inner heliosphere [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2013
During the MESSENGER spacecraft's interplanetary trajectory to Mercury, the Fast Imaging Plasma Spectrometer (FIPS) measured the first helium pickup ion distributions at a heliocentric distance (R) ranging between 0.3 and 0.7 AU. From several transits of MESSENGER through the interstellar helium gravitational focusing cone, we map the cone structure in
Gershman, Daniel J.   +7 more
openaire   +3 more sources

Energization of Charged Test Particles in Magnetohydrodynamic Fields: Waves versus Turbulence Picture

open access: yesThe Astrophysical Journal, 2023
Direct numerical simulations of three-dimensional compressible magnetohydrodynamic (MHD) turbulence have been performed in order to study the relation between wave modes and coherent structures and the consequent energization of test particles. Moreover,
F. Pugliese   +3 more
doaj   +1 more source

The Onset of Ion Heating During Magnetic Reconnection with a Strong Guide Field

open access: yes, 2014
The onset of the acceleration of ions during magnetic reconnection is explored via particle-in-cell simulations in the limit of a strong ambient guide field that self-consistently and simultaneously follow the motions of protons and $\alpha$ particles ...
Drake, J. F., Swisdak, M.
core   +1 more source

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