Results 31 to 40 of about 18,820 (223)

Acceleration of an interplanetary shock through the magnetosheath: a global hybrid simulation

open access: yesFrontiers in Astronomy and Space Sciences
According to most observations and simulations, interplanetary shocks slow down when they propagate through the magnetosheath. In this article, we present results from a self-consistent global hybrid PIC simulation of an interplanetary shock which, by ...
C. Moissard   +4 more
doaj   +1 more source

Evidence for transient, local ion foreshocks caused by dayside magnetopause reconnection [PDF]

open access: yesAnnales Geophysicae, 2016
We present a scenario resulting in time-dependent behaviour of the bow shock and transient, local ion reflection under unchanging solar wind conditions.
Y. Pfau-Kempf   +10 more
doaj   +1 more source

A semi-analytical foreshock model for energetic storm particle events inside 1 AU [PDF]

open access: yes, 2014
We have constructed a semi-analytical model of the energetic-ion foreshock of a CME-driven coronal/interplanetary shock wave responsible for the acceleration of large solar energetic particle (SEP) events.
Aran   +28 more
core   +2 more sources

Reflected ions at interplanetary shocks [PDF]

open access: yesGeophysical Research Letters, 2010
This paper shows that the shock dissipation mechanism changes profoundly from the inner to outer heliosphere and that pickup ions are responsible for shock dissipation beyond 35 AU. We make the first study of reflected ions in ICME sheaths downstream of interplanetary shocks observed by Voyager 2 from 1–80 AU.
openaire   +1 more source

Short term Variability of the Sun Earth System: An Overview of Progress Made during the CAWSES II Period [PDF]

open access: yes, 2015
This paper presents an overview of results obtained during the CAWSES II period on the short term variability of the Sun and how it affects the near Earth space environment. CAWSES II was planned to examine the behavior of the solar terrestrial system as
Gopalswamy, Nat   +2 more
core   +2 more sources

Interplanetary circumstances of quasi‐perpendicular interplanetary shocks in 1996–2005 [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2010
The angle (θBn) between the normal to an interplanetary shock front and the upstream magnetic field direction, though often thought of as a property “of the shock,” is also determined by the configuration of the magnetic field immediately upstream of the shock. We investigate the interplanetary circumstances of 105 near‐Earth quasi‐perpendicular shocks
I. G. Richardson, H. V. Cane
openaire   +1 more source

MHD waves at the pre-front of interplanetary shocks on September 6 and 7, 2017

open access: yesSolar-Terrestrial Physics
We analyze strong space weather disturbances during first ten days of September 2017, using the geomagnetic Dst index, parameters of normals to interplanetary shock fronts, direct measurements of interplanetary magnetic field, solar wind, and cosmic ray ...
Starodubtsev S. A., Shadrina L. P.
doaj   +1 more source

Localized enhancements of energetic particles at oblique collisionless shocks

open access: yes, 2015
We investigate the spatial distribution of charged particles accelerated by non-relativistic oblique fast collisionless shocks using three-dimensional test-particle simulations.
Fraschetti, Federico, Giacalone, Joe
core   +1 more source

The event of 21 June 1980 and the origin of solar cosmic rays [PDF]

open access: yesGeofísica Internacional, 2000
We present well-observed interplanetary disturbances in the near Earth environment and discuss their behavior. From these observations a hypothetical two source origin of Solar Cosmic Rays is discussed.
Adolfo L. Méndez Berhondo   +2 more
doaj  

Ion dynamics in quasi-perpendicular collisionless interplanetary shocks: A case study

open access: yesFrontiers in Physics, 2013
Interplanetary shocks are believed to play an important role in the acceleration of charged particles in the heliosphere. While the acceleration to high energies proceeds via the diffusive mechanism at the scales exceeding by far the shock width, the ...
Michael eGedalin, Wolfgang eDroege
doaj   +1 more source

Home - About - Disclaimer - Privacy