Results 61 to 70 of about 23,056 (219)

On the Cause of Supra-Arcade Downflows in Solar Flares [PDF]

, 2013
A model of supra-arcade downflows (SADs), dark low density regions also known as tadpoles that propagate sunward during solar flares, is presented. It is argued that the regions of low density are flow channels carved by sunward-directed outflow jets ...
Cassak, P. A., Drake, J. F., Gosling, J. T., Phan, T. -D., Shay, M. A., Shepherd, L. S.   +5 more
core   +3 more sources

A Physics‐Informed Neural Network Approach to the Gannon Storm

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Extreme geomagnetic storms, such as the May 2024 Gannon event, pose significant risks to technological infrastructure, requiring robust forecasting models. Here, we apply Physics‐Informed Neural Networks (PINNs) to the Burton equation to model the storm's ring current dynamics by studying the temporal evolution of the SuperMAG SMR index during
M. Lacal, E. Camporeale, M. Piersanti, G. Consolini   +3 more
wiley   +1 more source

Theory and Applications of Non-Relativistic and Relativistic Turbulent Reconnection

, 2015
Realistic astrophysical environments are turbulent due to the extremely high Reynolds numbers. Therefore, the theories of reconnection intended for describing astrophysical reconnection should not ignore the effects of turbulence on magnetic reconnection.
A. A. Schekochihin, A. Beresnyak, A. Beresnyak, A. Bhattacharjee, A. Brandenburg, A. Chepurnov, A. Chepurnov, A. Ciaravella, A. Kupiainen, A. Lazarian, A. Lazarian, A. Lazarian, A. Lazarian, A. Lazarian, A. Lazarian, A. Lazarian, A. Lazarian, A. Lazarian, A. Lazarian, A. Lazarian, A. Lazarian, A. Lazarian, A. Lazarian, A. Merloni, A.B. Rechester, Alex Lazarian, Alexei G. Kritsuk, Allen H. Boozer, Allen H. Boozer, Andrey Beresnyak, Andrey Beresnyak, B. Cerutti, B. Cerutti, B. Khiali, B.D.G. Chandran, Benjamin D. G. Chandran, Bing Zhang, C. B. Singh, C. Thompson, C. Vogt, C.H. Jaroschek, C.L. Gerrard, C.S. Ng, Colin A. Norman, D. Biskamp, D. Giannios, D. Giannios, D. Montgomery, D.L. Meier, David Radice, Dimitrios Giannios, Dmitri A. Uzdensky, E M de Gouveia Dal Pino, E. Hameiri, E. M. DE GOUVEIA DAL PINO, E. M. de Gouveia Dal Pino, E.N. Parker, E.N. Parker, E.T. Vishniac, Elisabete M. de Gouveia Dal Pino, Ellen G. Zweibel, Ethan T. Vishniac, Eun‐jin Kim, F. Heitsch, F. Heitsch, F.H. Shu, Fan Guo, G. Brunetti, G. Drenkhahn, G. Eyink, G. Kowal, G. Kowal, G. Kowal, G. Lapenta, G. Lapenta, G. Rocha da Silva, Gregory L. Eyink, Grzegorz Kowal, Grzegorz Kowal, Grzegorz Kowal, H. Alfvén, H. Karimabadi, H. Karimabadi, H. Tennekes, H.R. Strauss, I.V. Sytine, J. Cho, J. F. Drake, J.C. Higdon, J.F. Drake, J.F. Drake, J.T. Gosling, J.V. Shebalin, J.W. Armstrong, Jason Maron, Jeffrey S. Oishi, Jonathan C. McKinney, Jonathan Zrake, Jonathan Zrake, Jungyeon Cho, Jungyeon Cho, Jungyeon Cho, Jungyeon Cho, Jungyeon Cho, Jungyeon Cho, K. Kulpa-Dybeł, K. Subramanian, Katia M. Ferrière, Kazunari Shibata, Klaus Galsgaard, Kris Beckwith, L. H. S. Kadowaki, L. O’C. Drury, L.F. Burlaga, Lorenzo Sironi, M. Hoshino, M. R. M. Leão, M. Takamoto, M. Yamada, M.A. Shay, M.A. Shay, Makoto Takamoto, Marco Fatuzzo, Maxim Lyutikov, N. F. Loureiro, N. F. Loureiro, Olga Khabarova, P. Browning, P. G. Watson, P. Goldreich, P.A. Sweet, P.H. Diamond, P.S. Iroshnikov, Padeli P. Papadopoulos, Paolo Padoan, R. Narayan, R. Santos-Lima, R. Santos-Lima, R. Santos-Lima, R. Sych, R.H. Kraichnan, R.J. Leamon, Ramesh Narayan, S. GALTIER, S. Galtier, S. S. Komissarov, S. Servidio, S. Stanimirović, S. Zenitani, S. Zenitani, S.A. Balbus, S.I. Syrovatskii, Seiji Zenitani, Stanislav Boldyrev, Stanislav Boldyrev, T. A. Enßlin, Tsuyoshi Inoue, W.H. Matthaeus, W.H. Matthaeus, W.H. Matthaeus, Weiqun Zhang, Y.E. Litvinenko, Yoram Lithwick, Z.B. Guo, Z.S. She   +164 more
core   +1 more source

Asymmetrically Distributed Kelvin‐Helmholtz Instability at Venusian Magnetosphere

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract The asymmetric distribution of Kelvin‐Helmholtz (KH) instability at Venusian ionopause is investigated using a multifluid model. Results show that KH instability distributes asymmetrically, preferentially developing in the −E (anti‐parallel to the interplanetary electric field) hemisphere.
Maodong Yan, Jiuhou Lei, Naoki Terada, Binzheng Zhang, Tong Dang, Ryoya Sakata, Shotaro Sakai, Yingjuan Ma   +7 more
wiley   +1 more source

Observations of a Two-sided Loop Jet and Magnetic Reconnection Involving a Medium-scale Filament Eruption

The Astrophysical Journal
Although multiscale filament eruptions serve as significant triggers for various energetic release processes in the solar atmosphere, the underlying mechanisms remain elusive.
Liping Yang, Xiaoli Yan, Jincheng Wang, Jinhan Guo, Qingmin Zhang, Liheng Yang, Dong Li, Ye Qiu, Qiaoling Li, Guanchong Cheng, Xinsheng Zhang, Guotang Wu, Zongyin Wu, Qifan Dong   +13 more
doaj   +1 more source

Comparison of Magnetospheric Multiscale ion jet signatures with predicted reconnection site locations at the magnetopause

Geophysical Research Letters, 2016
Magnetic reconnection at the Earth's magnetopause is the primary process by which solar wind plasma and energy gains access to the magnetosphere. One indication that magnetic reconnection is occurring is the observation of accelerated plasma as a jet ...
S. M. Petrinec, J. L. Burch, S. A. Fuselier, R. G. Gomez, W. Lewis, K. J. Trattner, R. Ergun, B. Mauk, C. J. Pollock, C. Schiff, R. J. Strangeway, C. T. Russell, T.‐D. Phan, D. Young   +13 more
doaj   +1 more source

Reconnection in substorms and solar flares: analogies and differences [PDF]

Annales Geophysicae, 2009
Magnetic reconnection is the crucial process in the release of magnetic energy associated with magnetospheric substorms and with solar flares. On the basis of three-dimensional resistive MHD simulations we investigate similarities and differences ...
J. Birn, M. Hesse
doaj   +1 more source

Dynamic Responses to Magnetic Reconnection in Solar Arcades [PDF]

The Astrophysical Journal, 1998
We present a numerical simulation of the interaction between two line dipoles through magnetic reconnection in the lower solar atmosphere, a process believed to be the origin of many manifestations of solar activity. This work differs from previous studies in that the field is sheared asymmetrically and that the dipoles have markedly unequal field ...
Judith T. Karpen, Spiro K. Antiochos, C. Richard DeVore, Leon Golub   +3 more
openaire   +1 more source

Reconnection Preferentially Accelerates Light Ions at Ganymede's Magnetopause

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Juno's flyby of Ganymede revealed ion composition in its vicinity with the Jovian Auroral Distributions Experiment–Ion (JADE‐I) instrument. Throughout this flyby, we derive species‐resolved ion density and velocity moments by decomposing the time‐of‐flight data into contributions from individual ion species using species‐dependent fits. At the
T. W. Oberg, J. R. Szalay, F. Allegrini, R. W. Ebert, S. P. Ellis, D. J. McComas, S. R. Carberry Mogan, P. W. Valek   +7 more
wiley   +1 more source

Magnetopause reconnection and interlinked flux tubes [PDF]

Annales Geophysicae, 2013
Magnetic reconnection can be a continuous or a transient process. Global magnetohydrodynamics (MHD) simulations are important tools to understand the relevant magnetic reconnection mechanisms and the resulting magnetic structures.
F. R. Cardoso, F. R. Cardoso, W. D. Gonzalez, D. G. Sibeck, M. Kuznetsova, D. Koga   +5 more
doaj   +1 more source