Results 71 to 80 of about 588 (209)

Filtration of Interstellar Neutral Helium by Elastic and Charge Exchange Collisions in Heliospheric Boundaries

open access: yesThe Astrophysical Journal, 2023
Interstellar neutral (ISN) helium atoms penetrating the heliosphere are used to find the flow velocity and temperature of the very local interstellar medium near the heliosphere.
P. Swaczyna   +3 more
doaj   +1 more source

Space science: Beyond the heliopause [PDF]

open access: yesNature, 2015
Roger D. Launius savours a masterful account, by a veteran of interplanetary space science, of the Voyager probes' mission to the giant planets.
openaire   +2 more sources

Unusual Galactic Cosmic Ray Intensity and Spectral Changes Observed by V1 Near The Heliopause [PDF]

open access: yes, 2015
We discuss here two unusual increases of cosmic ray intensity that were observed by V1 in the last 1.1 AU before it crossed the heliopause in 2012 August, at 121.5 AU. These two increases are roughly similar in amplitude and result in a total increase in
Webber, WR, Quenby, JJ
core   +1 more source

An Investigation of the Evolution of Heliosheath Energetics Using a Pressure Enhancement Event Observed by IBEX

open access: yesThe Astrophysical Journal
During solar cycle 24, an increase in the solar wind (SW) dynamic pressure in late 2014 caused a sharp increase in the heliospheric energetic neutral atom (ENA) flux that was seen by the Interstellar Boundary Explorer (IBEX) at 1 au in late 2016.
Nehpreet K. Walia   +8 more
doaj   +1 more source

A Large Magnetic Hump in the VLISM Observed by Voyager 1 in 2020–2022

open access: yesThe Astrophysical Journal, 2023
Voyager 1 has been moving through the very local interstellar medium (VLISM) for approximately one solar cycle, from 122.58 au on 2012/DOY 238 (August 25) to 158.5 au on 2023.0. Previously, an abrupt increase (“jump”) in the magnetic field strength B and
L. F. Burlaga   +5 more
doaj   +1 more source

Filtering of the interstellar dust flow near the heliopause: the importance of secondary electron emission for the grain charging. [PDF]

open access: yes, 1999
The deflection of interstellar dust grains in the magnetic field near the heliopause depends on their surface electric charge. We study the electric charging of the grains with emphasis on the secondary electron emission because of its importance in the ...
Mann, I.   +3 more
core  

Magnetic Turbulence Intermittency and Compressibility in the Inner Heliosheath and Very Local Interstellar Medium

open access: yesThe Astrophysical Journal Letters
We analyze Voyager 1 magnetic field data through 2024 to study fluctuations from the inner heliosheath into the very local interstellar medium (VLISM).
L.-L. Zhao   +10 more
doaj   +1 more source

Implications of Voyager 1 observations beyond the heliopause for the local interstellar electron spectrum [PDF]

open access: yes, 2014
Cosmic-ray observations made by the Voyager 1 spacecraft outside the dominant modulating influence of the heliosphere finally allow the comparison of computed galactic spectra with experimental data at lower energies.
Bisschoff, D., Potgieter, M.S.
core   +2 more sources

Intermittency in Voyager’s Magnetic Field Beyond the Heliosphere

open access: yesThe Astrophysical Journal
As the two Voyager spacecraft traveled beyond the heliosphere, they encountered a magnetic field environment that had never been observed before. Studies have attempted to characterize this new regime by examining the magnetic field intermittency.
L. Y. Khoo   +4 more
doaj   +1 more source

Fourteen Years of Energetic Neutral Atom Observations from IBEX

open access: yesThe Astrophysical Journal Supplement Series
The Interstellar Boundary Explorer (IBEX) has been observing the outer heliosphere and its interactions with the very local interstellar medium (VLISM) via measurements of energetic neutral atoms (ENAs) for over 14 yr.
D. J. McComas   +10 more
doaj   +1 more source

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