Unusual enhancement of ~ 30 MeV proton flux in an ICME sheath region
In gradual Solar Energetic Particle (SEP) events, shock waves driven by coronal mass ejections (CMEs) play a major role in accelerating particles, and the energetic particle flux enhances substantially when the shock front passes by the observer.
Mitsuo Oka +5 more
doaj +1 more source
Statistical study on interplanetary drivers behind intense geomagnetic storms and substorms
Geomagnetic storms and substorms play a central role in both the daily life of mankind and in academic space physics. The profiles of storms, especially their initial phase morphology and the intensity of their substorms under different interplanetary ...
Tian Tian +5 more
doaj +1 more source
Sources of interplanetary shocks [PDF]
Abstract The sources of interplanetary shocks are reviewed from the standpoint of today's knowledge. Recent progress from both new and accumulated observations and models indicates that contributions from the two major sources of the shocks: CMEs and stream interactions, have distinctive radial, latitudinal and temporal dependencies.
openaire +1 more source
Simultaneous interplanetary scintillation and Heliospheric Imager observations of a coronal mass ejection [PDF]
We describe simultaneous Interplanetary Scintillation (IPS) and STEREO Heliospheric Imager (HI) observations of a coronal mass ejection (CME) on 16 May 2007. Strong CME signatures were present throughout the IPS observation.
Davies, Jackie +5 more
core +6 more sources
Plasmaspheric High‐Frequency Whistlers as a Candidate Cause of Shock Aurora at Earth
Auroral brightening driven by interplanetary shocks on Earth's closed magnetic field lines is commonly attributed to the 0.1–10 keV electron precipitations by electron cyclotron harmonic waves and whistler‐mode chorus waves in the low‐density region.
Nigang Liu +7 more
doaj +1 more source
Interplanetary shock-associated aurora [PDF]
Interplanetary shocks or solar wind pressure pulses have prompted impacts on Earth’s magnetospheric and ionospheric environment, especially in causing dynamic changes to the bright aurora in the polar ionosphere.
Desheng, Han +3 more
core +1 more source
Arrival times of Flare/Halo CME associated shocks at the Earth: comparison of the predictions of three numerical models with these observations [PDF]
The arrival times at L1 of eleven travelling shocks associated both with X-ray flaring and with halo CMEs recorded aboard SOHO/LASCO have been considered.
S. M. P. McKenna-Lawlor +13 more
doaj +1 more source
Dynamics of He++ Ions at Interplanetary and Earth’s Bow Shocks
Experimental investigations of the fine plasma structure of interplanetary shocks are extremely difficult to conduct due to their small thickness and high speed relative to the spacecraft.
Olga V. Sapunova +3 more
doaj +1 more source
Acceleration of protons by interplanetary shocks [PDF]
Short duration proton energy increases observation by Explorer 34, considering interpretation as acceleration associated interplanetary ...
K. W. Ogilvie, J. F. Arens
openaire +1 more source
Global Magnetospheric Response to an Interplanetary Shock: THEMIS Observations [PDF]
We investigate the global response of geospace plasma environment to an interplanetary shock at approx. 0224 UT on May 28, 2008 from multiple THEMIS spacecraft observations in the magnetosheath (THEMIS B and C) and the mid-afternoon (THEMIS A) and dusk ...
Zhang, Hui +12 more
core +1 more source

