Results 81 to 90 of about 728 (195)

The Effects of Turbulence on Heliosheath Ions and Implications for Energetic Neutral Atoms

open access: yesThe Astrophysical Journal
The distribution of ions in the heliosheath—the region between the heliospheric termination shock and the heliopause—is important for understanding remote observations of energetic neutral atoms (ENAs).
Senbei Du   +5 more
doaj   +1 more source

Trains of Magnetic Holes and Magnetic Humps in the Heliosheath

open access: yes, 2006
This paper discusses the existence of trains (sequences) of magnetic holes and magnetic humps in the heliosheath, based on Voyager 1 observations made in the intervals DOY 312.9707 - 317.0879, 2005 and DOY 185.2762 - 186.7957, 2005.
Acuna, Mario   +2 more
core  

Scattering of Continuously Injected Pickup Ions of Oblique Pickup Angles in the Outer Heliosheath

open access: yesThe Astrophysical Journal
Pitch angle scattering of pickup ions (PUIs) in the outer heliosheath is studied using two-dimensional hybrid simulations, with the PUIs continuously injected at specified injection rates and pickup angles.
Ding Sheng   +3 more
doaj   +1 more source

Analysis of Voyager Observed High-Energy Electron Fluxes in the Heliosheath Using MHD Simulations [PDF]

open access: yes, 2011
The Voyager spacecraft (V1 and V2) observed electrons of 6-14 MeV in the heliosheath which showed several incidences of flux variation relative to a background of gradually increasing flux with distance from the Sun.
Washimi, Haruichi   +6 more
core  

The effect of a dynamic inner heliosheath thickness on cosmic-ray modulation [PDF]

open access: yes, 2015
The time-dependent modulation of galactic cosmic rays in the heliosphere is studied over different polarity cycles by computing 2.5 GV proton intensities using a two-dimensional, time-dependent modulationmodel.
Potgieter, M.S.   +2 more
core   +1 more source

Constraining the Properties of the Multicomponent Local Interstellar Medium: MHD-kinetic Modeling Validated by Voyager and New Horizons Data

open access: yesThe Astrophysical Journal Letters
We introduce the first solar-cycle simulations from our 3D, global MHD-plasma/kinetic-neutrals model, where both hydrogen and helium atoms are treated kinetically, while electrons and helium ions are described as individual fluids.
Federico Fraternale   +2 more
doaj   +1 more source

Heliosheath Space Environment Interactions with Icy Bodies in the Outermost Solar System [PDF]

open access: yes, 2006
The Voyager 1 and 2 spacecraft are exploring the space environment of the outermost solar system at the same time that earth-based astronomy continues to discover new icy bodies, one larger than Pluto, in the transitional region outward from the ...
Hill, Matthew E.   +3 more
core  

The Plasma Pressure Contribution from Low-energy (0.05–2 keV) Energetic Neutral Atoms in the Heliosheath

open access: yesThe Astrophysical Journal
Energetic neutral atoms (ENAs) from the heliosphere are a unique means to remotely image the boundary regions of our heliosphere. The Interstellar Boundary Explorer (IBEX) has been very successful in measuring these ENAs since 2008 at energies from tens ...
André Galli   +8 more
doaj   +1 more source

SUPERPOSITION OF POLYTROPES IN THE INNER HELIOSHEATH

open access: yesThe Astrophysical Journal Supplement Series, 2016
This paper presents a possible generalization of the equation of state and Bernoulli's integral when a superposition of polytropic processes applies in space and astrophysical plasmas. The theory of polytropic thermodynamic processes for a fixed polytropic index is extended for a superposition of polytropic indices. In general, the superposition may be
openaire   +1 more source

Future Exploration of the Outer Heliosphere and Very Local Interstellar Medium by Interstellar Probe. [PDF]

open access: yesSpace Sci Rev, 2023
Brandt PC   +42 more
europepmc   +1 more source

Home - About - Disclaimer - Privacy