Results 31 to 40 of about 871 (133)

Solar Coronal Heating by Kinetic Alfvén Waves

The Astrophysical Journal
The utilization of the Cairns distribution serves as a vital tool for characterizing the nonthermal attributes commonly observed in space plasmas.
Syed Ayaz, Gang Li, Imran A. Khan
doaj   +1 more source

Neutral Wind Dynamics in High‐Latitude Regions During the 17 March 2013 Storm

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract Neutral winds play a critical role in transporting mass, momentum, and energy throughout the upper atmosphere. During geomagnetic storms, momentum is transferred to the thermosphere primarily through ion–neutral collisions, along with other forces. This study investigates high‐latitude neutral wind dynamics during the 17 March 2013 storm using
A. Alhothali, A. J. Ridley, M. Akhavan‐Tafti   +2 more
wiley   +1 more source

Simulating the Solar Corona with Multiple Solar Photospheric Magnetic Maps during the 2024 April 8 Total Solar Eclipse

The Astrophysical Journal
The 2024 April 8 total solar eclipse provides a unique opportunity to study the solar corona. This work presents our simulations of the solar corona at the time of the eclipse based on magnetohydrodynamic modeling performed with the Alfvén Wave Solar ...
Xianyu Liu, Weihao Liu, Ward B. Manchester IV, Daniel T. Welling, Gábor Tóth, Tamas I. Gombosi, Marc L. DeRosa, Luca Bertello, Alexei A. Pevtsov, Alexander A. Pevtsov, Kevin Reardon, Kathryn Wilbanks, Amy Rewoldt, Lulu Zhao   +13 more
doaj   +1 more source

Unraveling the Fine‐Scale Tapestry of Solar Wind at 1AU

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Solar wind is a complex network of distinct magnetic flux tubes, each contained and separated by a current sheet. In this study, more than 50,000 current sheets in the solar wind are identified and characterized for the first time, using multi‐point Cluster observations during solar minimum and maximum intervals.
M. Akhavan‐Tafti, S. Kumar, A. Szabo, B. Grison   +3 more
wiley   +1 more source

Phase-space Analysis of Ordered and Disordered Nonthermal Ion Energization during Magnetic Reconnection

The Astrophysical Journal, 2023
Anomalous ion heating is frequently observed to accompany magnetic reconnection, yet there is little consensus on its origin. Instead of the usual velocity-space analysis, we use phase-space analysis to exhaustively explain how ions are nonthermally ...
Young Dae Yoon, Paul M. Bellan, Gunsu S. Yun   +2 more
doaj   +1 more source

Future high-resolution and high-cadence observations for unraveling small-scale explosive solar features

Frontiers in Astronomy and Space Sciences, 2023
Solar coronal jets are frequently occurring collimated ejections of solar plasma, originating from magnetically mixed polarity locations on the Sun of size scale comparable to that of a supergranule.
Alphonse C. Sterling, Ronald L. Moore, Ronald L. Moore, Navdeep K. Panesar, Navdeep K. Panesar, Tanmoy Samanta, Sanjiv K. Tiwari, Sanjiv K. Tiwari, Sabrina L. Savage   +8 more
doaj   +1 more source

MMS Observations of the Energetic Particles Within Kelvin‐Helmholtz Waves at the Boundary of the 10 May 2024 Coronal Mass Ejection (CME)

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract On 10 May 2024, Earth was hit by a CME that drove the largest geomagnetic storm in 20 years. Multi‐spacecraft observations previously showed that the ∼100 nT north‐south IMF bz ${b}_{z}$ variation was driven by Kelvin‐Helmholtz waves with wavelength ∼250 RE ${R}_{E}$ and reconnection jets in the ±z $\pm z$‐direction (Nykyri, 2024a, https://doi.
Katariina Nykyri, Neetasha Arya, Scott Boardsen, Guan Le, Harri Laakso, Lynn Wilson, Xuanye Ma, Katherine Holland, Brandon Burkholder, Leon Ofman, Kyoung‐Joo Hwang, Dinesh Radhakrishnan, Shiva Kavosi, Daniel Gershman, Christine Gabrielse, Barbara Giles, Stephen Fuselier, Jim Burch   +17 more
wiley   +1 more source

Living Crystallization‐Driven Self‐Assembly: Entering an Era of Functional Customization

Aggregate, Volume 7, Issue 7, July 2026.
Living CDSA achieves fine regulation of nanostructures when adopting block copolymers as basic units. Researchers can realize functional customization by means of intrinsic design, exogenous modification, and surface engineering. The developed multifunctional nanomaterials find wide applications in catalysis, optoelectronics, and biomedicine.
Chenchen Gao, Yao Lu, Zhenyan Ji, Peiwen Wang, Xiaomin Cai, Jiawei Tao, Huibin Qiu   +6 more
wiley   +1 more source

Soft Proton Environment Modeling for SMILE Using XGBoost and Solar Cycle–Informed Synthetic Data Sets

Space Weather, Volume 24, Issue 7, July 2026.
Abstract Soft proton contamination presents a persistent threat to the performance of space‐based X‐ray observatories such as ESA's upcoming Solar‐wind Magnetosphere Ionosphere Link Explorer (SMILE). This study develops a machine‐learning framework for modeling soft proton fluxes in the 92.2–159.7 keV range, tailored to SMILE's elliptical, highly ...
Simon Mischel, Elena A. Kronberg, C. P. Escoubet   +2 more
wiley   +1 more source

Contrasting Space Weather Drivers of Two Geomagnetically Induced Current Events in Alberta, Canada During the May 2024 Superstorm

Space Weather, Volume 24, Issue 7, July 2026.
Abstract Strong geomagnetic disturbances (GMDs) caused by intense space storms induce geomagnetically induced currents (GICs) in the Earth and within long conductive infrastructure, potentially posing risks to electricity transmission systems. Here, we investigate the solar wind conditions and magnetospheric processes responsible for two significant ...
Hannah G. Parry, Darcy R. Cordell, Sneha S. Babu, Ryan MacMullin, Ian R. Mann   +4 more
wiley   +1 more source