Results 71 to 80 of about 728 (195)

Propagation into the heliosheath of a large-scale solar wind disturbance bounded by a pair of shocks

, 2013
Context. After the termination shock (TS) crossing, the Voyager 2 spacecraft has been observing strong variations of the magnetic field and solar wind parameters in the heliosheath.
V. Izmodenov, M. Opher, E. Provornikova, G. Toth   +3 more
core   +1 more source

OBSERVATIONS OF THE HELIOSHEATH AND SOLAR WIND NEAR THE TERMINATION SHOCK BY [PDF]

, 2008
This paper describes the principal features of 24 hr averages of the magnetic field strength variations B(t) and their relationships to the plasma and energetic particles observed prior to and after the crossing of the termination shock (TS) by Voyager 2
N. F. Ness, Burlaga, L. F., J. D. Richardson, Stone, E., McDonald, F. B., Ness, N. F., Richardson, John D., M. H. Acuña, Acuña, M. H., Stone, E. C., E. Stone, L. F. Burlaga, Richardson, J. D., F. B. McDonald   +13 more
core   +1 more source

Turbulence, Waves, and Taylor\u27s Hypothesis for Heliosheath Observations [PDF]

Magnetic field fluctuations measured in the heliosheath by the Voyager spacecraft are often characterized as compressible, as indicated by a strong fluctuating component parallel to the mean magnetic field.
Adhikari, L., Zank, G. P., Nakanotani, M., Opher, M., Florinski, V., Li, H., Zhao, L. -L., Zieger, B., Zhu, X.   +8 more
core   +1 more source

Large-scale Structure of the Heliospheric Current Sheets within the Heliosheath Inferred from Voyager 2 Observations

The Astrophysical Journal
In this paper, we conducted an analysis of the heliospheric current sheets (HCSs) in the heliosheath (HS), utilizing observations by Voyager 2 between 2008 and 2018.
Dooyoung Choi, Dae-Young Lee, Kyung-Eun Choi, Sung Jun Noh, Kyung-Chan Kim   +4 more
doaj   +1 more source

Probing the thermodynamic conditions of the heliosheath plasma by shock wave propagation

, 2020
Context. The pressure equilibrium between the inner heliosheath and the outer heliosheath (referred to as the local interstellar medium) is an eminent theoretical and practical problem; theoretical, because the relevant pressure carriers have to be ...
M. Heyl, H. J. Fahr
core   +1 more source

VOYAGER 2 OBSERVES A LARGE DENSITY INCREASE IN THE HELIOSHEATH

, 2012
Voyager 2 (V2) entered the heliosheath in 2007 August at roughly the same time solar minimum conditions were reaching the outer heliosphere. Soon after crossing the termination shock the solar wind density at Voyager decreased by a factor of two and the ...
Richardson, John D., Wang, C.
core   +1 more source

Interpretation of the IBEX-Lo Observations of Energetic Neutral Atoms along the Voyager Trajectories

The Astrophysical Journal Letters
This Letter addresses a long-standing discrepancy between simulated energetic neutral atom (ENA) fluxes and Interstellar Boundary Explorer (IBEX) observations in the ∼0.02–0.1 keV energy range.
Federico Fraternale, Ratan Bera, Nikolai V. Pogorelov, Eric J. Zirnstein, Vadim Roytershteyn   +4 more
doaj   +1 more source

Anisotropies of 40–139 keV Ions Measured beyond the Termination Shock and in the Very Local Interstellar Medium

The Astrophysical Journal
We analyze the count rates of 40–139 keV ions that were measured in situ by the Low Energy Charged Particle instrument on Voyager 1 in order to identify the suprathermal ion anisotropies beyond the termination shock and in the very local interstellar (IS)
Konstantinos Dialynas, Stamatios M. Krimigis, Robert B. Decker, Matthew E. Hill, Romina Nikoukar, Merav Opher   +5 more
doaj   +1 more source

Dynamics of the Upwind Heliosphere Due to Data-driven Solar Wind and Magnetic Field Variations and Implications for Wave Propagation into the Very Local Interstellar Medium

The Astrophysical Journal
We introduce an updated, time-dependent treatment to the split-tail (“croissant-like”) heliosphere model with data-driven solar wind conditions at 1 au to study the evolution of the heliosphere with solar-cycle variations in plasma speed, plasma density,
C. Onubogu, M. Opher, E. Powell, S. Du, J. M. Sokół, J. D. Richardson, B. Van Der Holst   +6 more
doaj   +1 more source

The Magnetic Field Structure in the Heliosheath

The Astrophysical Journal, 2005
The magnetic field observed in a fluctuating, dynamical heliosheath will differ considerably from that in a static heliosheath. In particular, the time between current-sheet crossings (sectors) is quite sensitive to the radial speed of the solar wind termination shock.
openaire   +1 more source