Results 101 to 110 of about 23,056 (219)

Superposed Epoch Analysis of Extreme Geomagnetic Disturbances at Auroral Zone Latitudes Over a Solar Cycle

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract Intense and rapidly changing electrical currents in near‐Earth space produce geomagnetic disturbances (GMDs) with large magnetic field rates of change (dB/dt) and in turn large geomagnetically induced currents (GICs) in nearby power lines and pipelines. This study builds on the work of Engebretson, Yang, et al.
Mark J. Engebretson, Giulia F. Mazza, Erik S. Steinmetz, Vyacheslav A. Pilipenko, Mark B. Moldwin, Martin G. Connors, Shin‐ichi Ohtani, Jesper W. Gjerloev   +7 more
wiley   +1 more source

The Observations of Magnetic Reconnection during the Interaction Process of Two Active Region Filaments

The Astrophysical Journal
We investigate the interaction between two filaments (F1 and F2) and their subsequent magnetic reconnection in active region (AR) NOAA 13296 and AR NOAA 13293 on 2023 May 9, utilizing high spatial and temporal resolution and multiwavelength observational
Zongyin Wu, Zhike Xue, Xiaoli Yan, Jincheng Wang, Liheng Yang, Zhe Xu, Qiaoling Li, Yang Peng, Liping Yang, Yian Zhou, Xinsheng Zhang, Liufan Gong, Qifan Dong, Guotang Wu   +13 more
doaj   +1 more source

Characterizing the Role of Storm‐Time High‐Latitude Ionospheric Structures in GPS Position Accuracy in Antarctica: May 2024 Storm

Space Weather, Volume 24, Issue 4, April 2026.
Abstract This study investigates the impact of high‐latitude ionospheric irregularities on global positioning system (GPS) position accuracy during the 10–11 May 2024 geomagnetic storm. Using data from ground‐based GPS receivers and an all‐sky camera in Antarctica, we examined evolution of GPS vertical total electron content, phase fluctuations, and ...
Waqar Younas, Yukitoshi Nishimura, Weixuan Liao, Josh L. Semeter, Sebastijan Mrak, Y. Jade Morton, Keith M. Groves, Tetsuo Motoba, Tim Everett   +8 more
wiley   +1 more source

Solar Flares as an Ongoing Magnetic Reconnection Process [PDF]

International Astronomical Union Colloquium, 1993
AbstractThe soft X-ray images taken by theYohkohSoft X-ray Telescope (SXT) provide a powerful new tool to solve the mechanism of solar flares. In particular, a limb flare that occurred on 1991, December 2 gives us convincing evidence that magnetic reconnection of a neutral sheet formed at the loop top participates in the flare energy release.
openaire   +1 more source

Magnetic Reconnection in Extreme Astrophysical Environments

, 2011
Magnetic reconnection is a basic plasma process of dramatic rearrangement of magnetic topology, often leading to a violent release of magnetic energy. It is important in magnetic fusion and in space and solar physics --- areas that have so far provided ...
A. Bhattacharjee, A. Brandenburg, A. Burrows, A. Lazarian, A. Spitkovsky, A.A. Ballegooijen van, A.A. Galeev, A.I. MacFadyen, A.K. Harding, A.P. Goodson, A.R. Choudhuri, B. Paczynski, B. Warner, B.D. Farris, B.F. Liu, B.N. Rogers, C. Thompson, C. Thompson, C. Thompson, C. Thompson, C.A. Tout, C.H. Jaroschek, C.H. Jaroschek, C.H. Jaroschek, C.K. Li, C.R. D’Angelo, D. Biskamp, D. Giannios, D. Giannios, D. Giannios, D. Giannios, D. Giannios, D. Lynden-Bell, D. Proga, D.A. Larrabee, D.A. Uzdensky, D.A. Uzdensky, D.A. Uzdensky, D.A. Uzdensky, D.A. Uzdensky, D.A. Uzdensky, D.A. Uzdensky, D.A. Uzdensky, D.A. Uzdensky, D.A. Uzdensky, D.A. Uzdensky, D.A. Uzdensky, D.M. Palmer, Dmitri A. Uzdensky, E.D. Feigelson, E.G. Blackman, E.G. Zweibel, E.G. Zweibel, E.N. Parker, E.N. Parker, E.P. Mazets, F. Haardt, F. Heitsch, F.C. Michel, F.S. Mozer, F.V. Coroniti, G. Drenkhahn, H. Herold, H. Lesch, H.C. Spruit, H.E. Petschek, H.K. Lee, I. Contopoulos, J. Birn, J. Goodman, J. Pétri, J.G. Kirk, J.J. Aly, K. Shibata, L.S. Shepherd, M. Hesse, M. Lyutikov, M. Lyutikov, M. Lyutikov, M. Lyutikov, M. Lyutikov, M. Lyutikov, M. Lyutikov, M. Lyutikov, M. Umizaki, M. Yamada, M. Yamada, M. Øieroset, M.H.P.M. Putten van, M.H.P.M. Putten van, M.J. Rees, M.M. Romanova, M.M. Romanova, M.R. Hayashi, M.V. Medvedev, N. Bessho, N. Bessho, N. Vlahakis, N. Watanabe, N.F. Loureiro, P. Meszaros, P.A. Cassak, P.A. Cassak, P.A. Cassak, P.A. Cassak, P.A. Cassak, P.A. Sweet, P.M. Nilson, P.M. Woods, R. Samtaney, R. Schopper, R.G. Kleva, R.P. Drake, R.S. Steinolfson, S. Zenitani, S. Zenitani, S. Zenitani, S. Zenitani, S. Zenitani, S.E. Woosley, S.S. Komissarov, S.S. Komissarov, T. Matteo Di, T. Padmanabhan, T.D. Phan, V.L. Dorman, W. Daughton, W. Liu, Y. Huang, Y. Lyubarsky, Y. Masada, Y.E. Lyubarskii, Y.E. Lyubarsky, Y.E. Lyubarsky, Z.W. Ma   +134 more
core   +1 more source

Reconnection Mediated by Magnetic Fractures and the Solar Flare

The Astrophysical Journal, 2018
AbstractReconnection of sheared magnetic fields is commonly treated by regarding the component perpendicular to the antiparallel components as a largely inert guide field. In this paper an alternative is proposed in which the free energy residing in the shear field is being converted prior to reconnection.
openaire   +2 more sources

Connecting Solar Wind Velocity Spikes Measured by Solar Orbiter and Coronal Brightenings Observed by SDO

The Astrophysical Journal Letters
The Parker Solar Probe's discovery that magnetic switchbacks and velocity spikes in the young solar wind are abundant has prompted intensive research into their origin(s) and formation mechanism(s) in the solar atmosphere.
Chuanpeng Hou, Alexis P. Rouillard, Jiansen He, Bahaeddine Gannouni, Victor Réville, Philippe Louarn, Andrey Fedorov, Lubomír Přech, Christopher J. Owen, Daniel Verscharen, Raffaella D’Amicis, Luca Sorriso-Valvo, Naïs Fargette, Jesse Coburn, Vincent Génot, Jim M. Raines, Roberto Bruno, Stefano Livi, Benoit Lavraud, Nicolas André, Gabriel Fruit, Rungployphan Kieokaew, Illya Plotnikov, Emmanuel Penou, Alain Barthe, Dhiren Kataria, Matthieu Berthomier, Frederic Allegrini, Vito Fortunato, Gennaro Mele, Timothy Horbury   +30 more
doaj   +1 more source

The Role of Reconnection at Magnetic Separators in Complex Solar Flare Ribbons

The Astrophysical Journal
Solar flare ribbons, manifesting as transient brightenings in the chromosphere, are believed to trace the footpoints of magnetic field lines reconnecting higher in the solar atmosphere.
Graham Barnes, Karin Dissauer
doaj   +1 more source

Recent progress in understanding magnetic reconnection in the Martian space environment

地球与行星物理论评
Magnetic reconnection, a ubiquitous plasma process in the universe, serves as a key mechanism for explosive energy release in various astrophysical phenomena.
Xiaojun Xu, Jing Wang, Yudong Ye, Ming Wang, Lei Luo, Qi Xu, Hengyan Man   +6 more
doaj   +1 more source

From Photospheric Footpoint Motion to Plasmoid Ejection: A Two-stage Reconnection Process in a Small-scale Chromospheric Jet

The Astrophysical Journal Letters
Using high-spatiotemporal-resolution multiwavelength observations from the New Vacuum Solar Telescope and the Solar Dynamics Observatory, we present a detailed analysis of a small-scale chromospheric jet driven by plasmoid-mediated magnetic reconnection.
Zehao Tang, Yuandeng Shen, Dongxu Liu, Surui Yao, Chengrui Zhou, Xiaobo Li   +5 more
doaj   +1 more source