Results 51 to 60 of about 1,735 (184)

Magnetic Reconnection at the Earliest Stage of Solar Flux Emergence [PDF]

The Astrophysical Journal, 2018
Abstract On 2016 September 20, the Interface Region Imaging Spectrograph observed an active region during its earliest emerging phase for almost 7 hr. The Helioseismic and Magnetic Imager on board the Solar Dynamics Observatory observed continuous emergence of small-scale magnetic bipoles with a rate of ∼1016 Mx s−1.
Hui Tian, Xiaoshuai Zhu, Hardi Peter, Jie Zhao, Tanmoy Samanta, Yajie Chen   +5 more
openaire   +3 more sources

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

Improving Geomagnetic Perturbation Forecasts in the Southern Hemisphere via Kernel‐Based Encoding of Mirror Symmetry

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract Accurate forecasting of geomagnetic perturbations is essential for assessing space weather risk of geomagnetic activities. Thanks to decades of magnetometer observations from world‐wide distributed networks and upstream solar wind observations at L1, data‐driven modeling of global geomagnetic perturbations has become increasingly feasible ...
Hongfan Chen, Gabor Toth, Yang Chen, Shasha Zou, Xun Huan   +4 more
wiley   +1 more source

Direct Imaging of a Prolonged Plasma/Current Sheet and Quasiperiodic Magnetic Reconnection on the Sun

The Astrophysical Journal
Magnetic reconnection is widely believed to be the fundamental process in the solar atmosphere that underlies magnetic energy release and particle acceleration.
Pankaj Kumar, Judith T. Karpen, Vasyl Yurchyshyn, C. Richard DeVore, Spiro K. Antiochos   +4 more
doaj   +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

Alfvénic Poynting Flux Characterized by a Substorm‐SMC Cycle and Ionospheric Influence

Space Weather, Volume 24, Issue 8, August 2026.
Abstract Geomagnetic substorms are fundamental processes of explosive geospace energy release within the Earth's magnetotail, which are usually divided into three phases: the growth phase, the expansion phase, and the recovery phase. Large‐scale electromagnetic energy transport during a geomagnetic substorm is in the form of Alfvén waves, transmitting ...
Qianfeng Yin, Enhao Feng, Binzheng Zhang, William Lotko, Kevin Pham, Zhiqi Zheng, Ziyi Yang, Tong Dang, Huishan Fu, Oliver Brambles   +9 more
wiley   +1 more source

Asymmetric Magnetic Reconnection In The Solar Atmosphere

, 2013
Models of solar flares and coronal mass ejections typically predict the development of an elongated current sheet in the wake behind the rising flux rope. In reality, reconnection in these current sheets will be asymmetric along the inflow, outflow, and out-of-plane directions.
Murphy, Nicholas A., Miralles, Mari Paz, Ranquist, Drake, Pope, Crystal, Raymond, John, Lukin, Vyacheslav, McKillop, Sean, Shen, Chengcai, Winter, Henry, Reeves, Katharine, Lin, Jun   +10 more
openaire   +2 more sources

Imaging Observations of Magnetic Reconnection in a Solar Eruptive Flare [PDF]

The Astrophysical Journal, 2017
Abstract Solar flares are among the most energetic events in the solar atmosphere. It is widely accepted that flares are powered by magnetic reconnection in the corona. An eruptive flare is usually accompanied by a coronal mass ejection, both of which are probably driven by the eruption of a magnetic flux rope (MFR).
Y. Li, X. Sun, M. D. Ding, J. Qiu, E. R. Priest   +4 more
openaire   +4 more sources