Results 21 to 30 of about 466,397 (157)

Unusual enhancement of ~ 30 MeV proton flux in an ICME sheath region

open access: yesEarth, Planets and Space, 2021
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

open access: yesEarth and Planetary Physics, 2019
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]

open access: yesAdvances in Space Research, 1995
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]

open access: yes, 2008
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

open access: yesGeophysical Research Letters, 2023
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]

open access: yes, 2019
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]

open access: yesAnnales Geophysicae, 2002
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

open access: yesUniverse, 2022
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]

open access: yesJournal of Geophysical Research, 1971
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]

open access: yes, 2011
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

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