Results 11 to 20 of about 1,133 (166)

Shock parameter calculations at weak interplanetary shock waves [PDF]

open access: yesAnnales Geophysicae, 2005
A large set of interplanetary shock waves observed using the Ulysses spacecraft is analysed in order to determine their local parameters. For the first time a detailed analysis is extended to the thermodynamic properties of a large number of events ...
J. M. Gloag, A. Balogh
doaj   +1 more source

Letter to the Editor
Forbush precursory increase and shock-associated particles on 20 October 1989
[PDF]

open access: yesAnnales Geophysicae, 2002
Strong interplanetary disturbances may affect cosmic ray protons tremendously with energies less than 1 GeV, increasing their intensity by hundreds of percents, but they are not so effective for protons of higher energies.
A. Struminsky   +2 more
doaj   +1 more source

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

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

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

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

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

The physics of space weather/solar-terrestrial physics (STP): what we know now and what the current and future challenges are [PDF]

open access: yesNonlinear Processes in Geophysics, 2020
Major geomagnetic storms are caused by unusually intense solar wind southward magnetic fields that impinge upon the Earth's magnetosphere (Dungey, 1961). How can we predict the occurrence of future interplanetary events?
B. T. Tsurutani   +3 more
doaj   +1 more source

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