Results 91 to 100 of about 9,560 (226)

Validating a Non‐Conventional Method for Expansion of Coronal Mass Ejections (CMEs) and Investigating the Evolution of a CME Substructures Using Solar Orbiter and Wind Observations

Space Weather, Volume 24, Issue 5, May 2026.
Abstract We present a validation of our recently proposed non‐conventional method, Constant Acceleration Accounted Perspective (CAAP), for estimating the instantaneous expansion speed of coronal mass ejection (CMEs), even when only single‐point in situ observations are available. This validation is enabled by the radial alignment of Solar Orbiter (SolO)
Anjali Agarwal, Wageesh Mishra, Mathew J. Owens, Tanja Amerstorfer   +3 more
wiley   +1 more source

The θBn problem: Determination of local magnetic parameters of interplanetary shocks from in situ IMF data [PDF]

Geofísica Internacional, 2001
The angle θBn is the angle between the upstream magnetic field and the shock normal direction and is important for many phenomena in interplanetary physics.
Andre Balogh, J. Américo González-Esparza   +1 more
doaj  

Two classes of solar energetic particle events associated with impulsive and long duration soft X-ray flares [PDF]

Solar energetic particle events observed in space have different properties depending on the class of associated flare. Impulsive flares, which occur low in the corona in regions of high energy density, are associated with particle events which are ...
Cane, H. V., Mcguire, R. E., Vonrosenvinge, T. T.   +2 more
core   +1 more source

Solar Wind‐Magnetosphere‐Ionosphere Coupling During the October 2024 Storms

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract Two geomagnetic storms occurred in October 2024 (Oct 6‐9 and 10–12), driven by the impact of a series of interplanetary coronal mass ejections on the magnetosphere. The first was a moderate storm, with peak Sym‐H near −150 nT, whereas the second was intense, Sym‐H reaching −340 nT.
S. E. Milan, M. K. Mooney, G. E. Bower, R. M. Hodnett, U. V. Amerstorfer, C. Möstl, A. Samsonov, B. J. Anderson, J. Gjerloev, S. K. Vines   +9 more
wiley   +1 more source

Plasma properties of driver gas following interplanetary shocks observed by ISEE-3 [PDF]

, 1982
Plasma fluid parameters calculated from solar wind and magnetic field data obtained on ISEE 3 were studied. The characteristic properties of driver gas following interplanetary shocks was determined.
Ashbridge, J. R., Bame, S. J., Feldman, W. C., Gosling, J. T., Smith, E. J., Zwickl, R. D.   +5 more
core   +1 more source

Modeling the Detectability of Energetic Heliospheric Ions at Pluto During the New Horizons Flyby

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract We investigate the detectability of heliospheric helium ions at energies up to 100 keV by the New Horizons (NH) spacecraft during its flyby through Pluto's induced magnetosphere. The Pluto Energetic Particle Spectrometer Science Investigation energetic ion detector observed a reduction in their flux by an order of magnitude as the spacecraft ...
Randall T. Ruch, Sven Simon, Peter Kollmann, C. Michael Haynes   +3 more
wiley   +1 more source

Variations of Heavy Ions in Interplanetary Shock Driven by Interplanetary Coronal Mass Ejections and Stream Interaction Regions

The Astrophysical Journal Supplement Series
In the solar wind, the fluctuation of heavy ion abundance serves as a crucial physical metric. This not only mirrors the attributes of the solar wind’s originating solar region but also signifies its influence on Earth’s magnetosphere.
Cong Wang, Qian Ye, Mu Li, Fei He, Xiaoxin Zhang   +4 more
doaj   +1 more source

Improvements of the shock arrival times at the Earth model STOA

, 2015
Prediction of the shocks' arrival times (SATs) at the Earth is very important for space weather forecast. There is a well-known SAT model, STOA, which is widely used in the space weather forecast.
Liu, H. -L., Qin, G.
core   +1 more source

Evolution of Magnetospheric Boundary Layers Under the 10 May 2024 ICME Impact

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract On 10 May 2024, an interplanetary coronal mass ejection‐driven shock impacted the dayside magnetopause, compressing it to ∼5 RE. A northward interplanetary magnetic field suppressed dayside reconnection and allowed a clear investigation of the magnetosphere response.
Sheng Li, Gilbert Pi, Zdeněk Němeček, Jana Šafránková, Trevor W. Leonard, Yang‐Yi Sun   +5 more
wiley   +1 more source

Turbulent Heating of Solar Wind Plasma Downstream of Magnetohydrodynamic Shocks

The Astrophysical Journal
Interplanetary (IP) shocks are believed to play a significant role in both amplifying the background level of turbulent fluctuations and in heating the bulk solar wind (SW). This study investigates the thermodynamic properties downstream of IP shocks. We
Alexander Pitňa, Jana Šafránková, Zdeněk Němeček, Gilbert Pi, Gary Zank, Lingling Zhao, Laxman Adhikari, Masaru Nakanotani   +7 more
doaj   +1 more source