Results 81 to 90 of about 1,498,055 (202)

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

Simulation of Thermal Nonequilibrium Cycles in the Solar Wind

The Astrophysical Journal
Thermal nonequilibrium (TNE) is a condition of the plasma in the solar corona in which the local rate of energy loss due to radiation increases to the point that it cannot be sustained by the various heating terms acting on the plasma, precluding the ...
Roger B. Scott, Jeffrey W. Reep, Mark G. Linton, Stephen J. Bradshaw   +3 more
doaj   +1 more source

Solar Coronal Heating: AC versus DC

The Astrophysical Journal, 1997
The heating of the plasma confined in active regions of the solar corona is caused by the dissipation of magnetic stresses induced by the photospheric motions of the loop footpoints. The aim of the present paper is to analyze whether solar coronal heating is dominated by slow (DC) or rapid (AC) photospheric driving motions.
Leonardo J. Milano, Daniel O. Gomez, Petrus C. H. Martens   +2 more
openaire   +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

Kinetic Physics of the Solar Corona and Solar Wind

Living Reviews in Solar Physics, 2006
Kinetic plasma physics of the solar corona and solar wind are reviewed with emphasis on the theoretical understanding of the in situ measurements of solar wind particles and waves, as well as on the remote-sensing observations of the solar corona made by
Marsch Eckart
doaj  

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

Modeling the Propagation of Slow Magnetoacoustic Waves in a Multistranded Coronal Loop

The Astrophysical Journal
We study the propagation properties of slow magnetoacoustic waves in a multithermal coronal loop using a 3D MHD model, for the first time. A bundle of 33 vertical cylinders, each of 100 km radius, randomly distributed over a circular region of radius 1 ...
S. Krishna Prasad, T. Van Doorsselaere
doaj   +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

Coronal Rain Driven by Low-frequency Impulsive Heating: Dependence of Dynamics and Morphology on Coronal Heating and Magnetic Field

The Astrophysical Journal
We performed numerical simulations to investigate how coronal heating and magnetic field strength regulate the dynamics and morphology of coronal rain in the solar corona.
Takero Yoshihisa, Takaaki Yokoyama
doaj   +1 more source

Atmospheric Heating Events Associated with Fine-scale Flux Emergence in Ephemeral Regions

The Astrophysical Journal
Coronal heating has puzzled solar physicists for decades. The question of why the Sun’s upper atmosphere is significantly hotter than its lower atmosphere remains a key mystery.
Hanlin Yang, Jingxiu Wang, Chunlan Jin
doaj   +1 more source