Results 81 to 90 of about 19,033 (227)

Imaging and Radio Signatures of Shock–Plasmoid Interaction

The Astrophysical Journal Letters
Understanding how shocks interact with coronal structures is crucial for understanding the mechanisms of particle acceleration in the solar corona and inner heliosphere.
Pankaj Kumar, Judith T. Karpen, P. K. Manoharan, N. Gopalswamy   +3 more
doaj   +1 more source

Scale lengths in quasi-parallel shocks [PDF]

Examples of an interplanetary and the bow shock illustrate the small relative size of the electrostatic layer relative to the scale of the magnetic fluctuations in quasi-parallel shocks.
Burlaga, L. F., Greenstadt, E. W., Scudder, J. D.   +2 more
core   +1 more source

Connecting speeds, directions and arrival times of 22 coronal mass ejections from the Sun to 1 AU

, 2014
Forecasting the in situ properties of coronal mass ejections (CMEs) from remote images is expected to strongly enhance predictions of space weather, and is of general interest for studying the interaction of CMEs with planetary environments. We study the
Amla, K., Colaninno, R. C., Davies, J. A., De Jong, E. M., Farrugia, C. J., Galvin, A. B., Hall, J. R., Harrison, R. A., Liewer, P. C., Liu, Y. D., Lugaz, N., Luhmann, J. G., Möstl, C., Peinhart, V., Rollett, T., Temmer, M., Veronig, A. M., Vršnak, B.   +17 more
core   +1 more source

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

Predicting the Arrival Time of an Interplanetary Shock Based on DSRT Spectrum Observations for the Corresponding Type II Radio Burst and a Blast Wave Theory

The Astrophysical Journal
Since fast head-on coronal mass ejections and their associated shocks represent potential hazards to the space environment of the Earth and even other planets, forecasting the arrival time of the corresponding interplanetary shock is a priority in space ...
Ran Li, Xinhua Zhao, Jingye Yan, Lin Wu, Yang Yang, Xuning Lv, Shiwei Feng, Mengsi Ruan, Nanbin Xiang, Yidan Liang   +9 more
doaj   +1 more source

Kelvin‐Helmholtz Stability Analysis as a Function of Dipole Tilt and Solar Wind Property

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract Kelvin‐Helmholtz instabilities (KHIs) play a critical role in facilitating mass and momentum transport across the magnetopause boundary. Recent studies have demonstrated that KHI occurrence exhibits both seasonal and diurnal variability, with enhanced activity when Earth's magnetic dipole is more closely aligned with the northward direction in
Alexander Navarro, Xuanye Ma, Jay Johnson, Simon Wing, Shiva Kavosi, Yu‐Lun Liou   +5 more
wiley   +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

Corotating shock structures [PDF]

Consideration of observed interplanetary shocks leads to the conclusion that a corotating forward shock has not been unambiguously identified at 1 AU.
Ogilvie, K. W.
core   +1 more source

Low Density Drivers of Strong Interplanetary Shocks [PDF]

International Astronomical Union Colloquium, 1996
AbstractThe theory that most, if not all, interplanetary shocks are caused by coronal mass ejections (CMEs) faces serious problems in accounting for the strongest shocks. The difficulties include (i) a remarkable absence of very strong shocks during solar maximum 1980 when CMEs were prolific, (ii) unrealistic initial speeds near the Sun for impulsive ...
openaire   +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