Results 71 to 80 of about 9,642 (217)

Observation of Kinetic Alfvén Waves inside an Interplanetary Coronal Mass Ejection Magnetic Cloud at 1 au

The Astrophysical Journal
Recent advancements have significantly enhanced our grasp of interplanetary coronal mass ejections (ICMEs) in the heliosphere. These observations have uncovered complex kinematics and structural deformations in ICMEs, hinting at the possible generation ...
Kishor Kumbhar, Anil Raghav, Omkar Dhamane, Kalpesh Ghag, Vinit Pawaskar, Zubair Shaikh, Ankush Bhaskar, Raffaella D’Amicis, Daniele Telloni   +8 more
doaj   +1 more source

Ion Energization and Acceleration Associated With Foreshock Bubbles: Results From a Hybrid‐Vlasov Simulation and MMS Observations

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Foreshock Bubbles (FBs) are large‐scale transient structures found in Earth's foreshock region and are associated with foreshock‐discontinuity interaction. FBs play a significant role in accelerating and energizing plasma through various mechanisms.
Souhail Dahani, Lucile Turc, Veera Lipsanen, Shi Tao, Jonas Suni, Yann Pfau‐Kempf, Milla Kalliokoski, Minna Palmroth, Daniel Gershman, Roy Torbert, James Burch   +10 more
wiley   +1 more source

Analysis on the Turbulent Properties of Current Sheets in the Solar Wind

The Astrophysical Journal
The energy dissipation of solar wind turbulence, closely linked to solar wind heating, is a fundamental process in space physics. Previous research indicates that current sheets in the solar wind significantly influence both energy dissipation and ...
L. D. Wang, Y. Wang, F. S. Wei, X. S. Feng, B. Y. Wang, P. B. Zuo, W. Y. Zhang, X. J. Xu, Z. L. Zhou, X. J. Song   +9 more
doaj   +1 more source

Simulations of Electron Acceleration at Collisionless Shocks: The Effects of Surface Fluctuations [PDF]

, 2006
Energetic electrons are a common feature of interplanetary shocks and planetary bow shocks, and they are invoked as a key component of models of nonthermal radio emission, such as solar radio bursts.
Anderson K. A., Cairns I. H., D. Burgess, Fitzenreiter R. J., Gosling J. T., Knock S. A., Krauss-Varban D., Krauss-Varban D., Krauss-Varban D., Leroy M. M., Lowe R. E., Scholer M., Tsurutani B. T., Winske D., Wu C. S.   +14 more
core   +2 more sources

MMS Observation of Trapping of Electrons by Chorus Waves Inside a Magnetic Hole

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract We present an event of chorus waves embedded within a magnetic hole (MH) in the Earth's magnetosheath, observed by the Magnetospheric Multi‐Scale (MMS) mission on 1 March 2016. Unlike conventional cases where chorus waves are typically detected near the center of a magnetic depression, in this event lower‐band chorus waves appear predominantly
Krushna C. Barik, Yoshiharu Omura, Satyavir Singh   +2 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

Early-time velocity autocorrelation for charged particles diffusion and drift in static magnetic turbulence

, 2012
Using test-particle simulations, we investigate the temporal dependence of the two-point velocity correlation function for charged particles scattering in a time-independent spatially fluctuating magnetic field derived from a three-dimensional isotropic ...
Bakunin, Bieber, Bykov, Corrsin, F. Fraschetti, Feller, Fraschetti, Giacalone, Giacalone, Giacalone, J. Giacalone, Kóta, Matthaeus, Press, Qin, Wibberenz   +15 more
core   +2 more sources

Extending the Wave Telescope Technique to Larger Numbers of Spacecraft Obtaining Robust Spatial Power Spectra

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract The wave telescope is an analysis technique for multi‐point spacecraft data that estimates power spectra in reciprocal position space (k $k$‐space). It has been used to reveal the spatial properties of waves and fluctuations in space plasmas. Originally designed as an analysis tool for 4 spacecraft constellations, new multi‐scale missions such
L. Schulz, K.‐H. Glassmeier, L. Turc, F. Plaschke, K. G. Klein, M. Palmroth, O. W. Roberts, Y. Narita   +7 more
wiley   +1 more source

Modification of the Power Spectral Density of Magnetic Field Fluctuations by Quasi-perpendicular Interplanetary Shocks

The Astrophysical Journal Letters
We investigate the role of interplanetary (IP) shocks in solar wind turbulence using observations of Solar Orbiter, Parker Solar Probe, and Wind. Employing statistical analysis of quasi-perpendicular fast forward (FF) and fast reverse (FR) shocks, we ...
Byeongseon Park, Alexander Pitňa, Jana Šafránková, Zdeněk Němeček   +3 more
doaj   +1 more source

Magnetic Cloud and Its Interplanetary Shock Sheath as a Modulator of the Cosmic Ray Intensity [PDF]

Journal of Astronomy and Space Sciences, 2008
Forbush Decreases (FDs) are representative events of abrupt decrease in galactic cosmic ray intensity. They are known to be strongly associated with solar wind events such as interplanetary shock (IP shock) and magnetic cloud (MC).
Su Yeon Oh
doaj   +1 more source