Results 11 to 20 of about 2,360 (188)

PLASMA IN THE HELIOSHEATH: 3.5 YEARS OF OBSERVATIONS [PDF]

open access: bronzeThe Astrophysical Journal, 2011
Voyager 2 (V2) has observed heliosheath (HSH) plasma since 2007 August. We describe how the plasma has evolved across the HSH. We show that the low solar wind dynamic pressure leads to an inward movement of the termination shock (TS) of about 10 AU to a minimum position of 73 AU in 2010.
J. D. Richardson, C. Wang
openalex   +4 more sources

Large periodic time variations of termination shock particles between ~0.5-20 mev and 6-14 mev electrons measured by the crs experiment on Voyager 2 as it crossed into the heliosheath in 2007: An example of freshly accelerated cosmic rays? [PDF]

open access: green, 2012
We have examined features in the structure of the heliosheath using the fine scale time variations of termination shock particles (TSP) between ~0.5 - 20 MeV and electrons between 2.5-14 MeV measured by the CRS instrument as the V2 spacecraft crossed the
Cummings, A. C.   +7 more
core   +4 more sources

Thermodynamics of the Inner Heliosheath

open access: yesThe Astrophysical Journal Supplement Series, 2022
Abstract We derive annual sky maps of the proton temperature in the inner heliosheath (IHS), and track their temporal evolution over the years 2009–2016 of Interstellar Boundary Explorer observations. Other associated thermodynamic parameters also determined are the density, kappa (the parameter that characterizes kappa distributions ...
G. Livadiotis   +5 more
openaire   +2 more sources

Transient heliosheath modulation [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2015
Voyager 1 has explored the solar wind-interstellar medium interaction region between the terminal shock and heliopause following the intensity distribution of galactic cosmic ray protons above 200 MeV energy. Before this component reached the galactic level at 121.7 AU, 4 episodes of rapid intensity change occured similar to the Forbush Decreases found
Quenby, JJ, Webber, WR
openaire   +3 more sources

On the Vitality, or Lack Thereof, in Heliospheric and Coronal Physics

open access: yesPerspectives of Earth and Space Scientists, Volume 4, Issue 1, December 2023., 2023
Abstract Heliospheric physics is the study of all phenomena in the solar wind, which carves out the heliosphere from the local interstellar medium. Coronal physics is the study of all phenomena in the solar corona, which creates the supersonic wind and all disturbances and variations contained therein.
Len A. Fisk
wiley   +1 more source

On the Temperatures of Planetary Magnetosheaths at the Subsolar Points

open access: yesJournal of Geophysical Research: Space Physics, Volume 127, Issue 11, November 2022., 2022
Abstract This research explores the relationship between the temperatures of the solar corona and planetary magnetosheaths. Based on the second law of thermodynamics, the maximum temperature of the planetary magnetosheaths cannot exceed that of the solar corona.
Chao Shen   +3 more
wiley   +1 more source

Propagation of Large‐Scale Solar Wind Events in the Outer Heliosphere From a Numerical MHD Simulation

open access: yesEarth and Planetary Physics, Volume 5, Issue 3, Page 223-231, May 2021., 2021
Abstract Voyager 1 occasionally detected sudden jumps of the local interstellar magnetic field strength since its heliopause crossing in August 2012. These events were believed to be associated with outward propagating solar wind shocks originating in the inner heliosphere. Here we investigate the correlation between interstellar shocks and large‐scale
XiaoCheng Guo   +3 more
wiley   +1 more source

Plasma flows in the heliosheath [PDF]

open access: yesGeophysical Research Letters, 2009
Voyager 2 is making the first plasma measurements in the heliosheath. The radial flow speeds in the heliosheath vary between 80 and 200 km/s with an average speed of 138 km/s. The flow in the T (azimuthal) direction is fairly constant and averages about 48 km/s; the flow direction is consistent with flow away from the heliospheric nose.
Richardson, J. D.   +4 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy