Results 81 to 90 of about 2,085 (203)

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

The 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, Daniel B. Reisenfeld, Lauren J. Beesley, Paul H. Janzen, Thomas K. Kim, Asher S. Merrill, Sung Jun Noh, Dave Osthus, Eric J. Zirnstein   +8 more
doaj   +1 more source

Warm Breeze from the starboard bow: a new population of neutral helium in the heliosphere

, 2014
We investigate the signals from neutral He atoms observed from Earth orbit in 2010 by IBEX. The full He signal observed during the 2010 observation season can be explained as a superposition of pristine neutral interstellar He gas and an additional ...
Alexashov, D. B., Bzowski, M., Fuselier, S. A., Grzedzielski, S., Izmodenov, V. V., Kubiak, M. A., Leonard, T., McComas, D. J., Moebius, E., Sokół, J. M., Swaczyna, P., Wurz, P.   +11 more
core   +1 more source

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

The 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, V. Florinski, G. P. Zank, M. Opher, J. Richardson, W. S. Kurth, A. Silwal, X. Zhu, N. S. M. Subashchandar, J. G. Alonso Guzman, Z. Jin   +10 more
doaj   +1 more source

Comparing various multi-component global heliosphere models

, 2007
Modeling of the global heliosphere seeks to investigate the interaction of the solar wind with the partially ionized local interstellar medium. Models that treat neutral hydrogen self-consistently and in great detail, together with the plasma, but that ...
Aleksashov, Alexashov, Baranov, Baranov, Baranov, Blum, Bzowski, D. Alexashov, Fahr, Fite, Florinski, Florinski, H.-J. Fahr, H.-R. Müller, Heerikhuisen, Izmodenov, Izmodenov, J. Heerikhuisen, K. Scherer, Lallement, Lindsey, Maher, Malama, Möbius, Müller, Olsen, Pauls, Pogorelov, Pryor, Richardson, Scherer, Slavin, Stone, V. Florinski, V. V. Izmodenov, Zank   +35 more
core   +2 more sources

Intermittency in Voyager’s Magnetic Field Beyond the Heliosphere

The 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, G. Livadiotis, D. J. McComas, M. E. Cuesta, J. S. Rankin   +4 more
doaj   +1 more source

Fourteen Years of Energetic Neutral Atom Observations from IBEX

The 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, M. Alimaganbetov, L. J. Beesley, M. Bzowski, H. O. Funsten, P. H. Janzen, M. A. Kubiak, J. S. Rankin, D. B. Reisenfeld, N. A. Schwadron, J. R. Szalay   +10 more
doaj   +1 more source

Voyager 2 Observations Near the Heliopause

Journal of Physics: Conference Series, 2020
Abstract This paper discusses plasma characteristics in the heliosheath region before the heliopause (HP), at the HP, and in the very local interstellar medium (VLISM). The Voyager 2 (V2) HP was a sharp boundary where the radial plasma currents went to background levels.
Richardson, John D., Belcher, John W., Burlaga, Leonard F., Cummings, Alan C., Decker, Robert B., Opher, Merav, Stone, Edward C.   +6 more
openaire   +2 more sources

Shocks, Compressible Perturbations, and Intermittency in the Very Local Interstellar Medium: Voyager 1 and 2 Observations and Numerical Modeling

The Astrophysical Journal
The Voyager spacecraft (V1 and V2) provide unique in situ measurements of perturbations propagating beyond the heliopause through the very local interstellar medium (VLISM), including the shocks and pressure fronts whose origin is debated. In particular,
Federico Fraternale, Nikolai V. Pogorelov, Ratan Bera, Leonard F. Burlaga, Maciej Bzowski   +4 more
doaj   +1 more source

Simulating a Steady-state Heliosphere

The Astrophysical Journal Supplement Series
Ever since the discovery of the solar wind, it has been understood that our solar system resides within a bubble of solar wind plasma that originates from the Sun.
Jacob Heerikhuisen, Eric J. Zirnstein, Nikolai V. Pogorelov   +2 more
doaj   +1 more source

ARE COSMIC RAYS MODULATED BEYOND THE HELIOPAUSE?

The Astrophysical Journal, 2014
We discuss the possible spatial variation of Galactic and anomalous cosmic rays (GCRs and ACRs) at and beyond the heliopause (HP). Remaining within the framework of the Parker transport equation and assuming incompressible plasma in the heliosheath, we consider highly idealized simple-flow models and compare our GCR results with recent publications of ...
J. Kóta, J. R. Jokipii
openaire   +1 more source