Results 81 to 90 of about 1,699 (184)

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

Oblique Compressible Waves in the Reconnection Exhaust Region Embedded in the Inner Heliospheric Current Sheet Observed by Parker Solar Probe

The Astrophysical Journal
Magnetic reconnection is an important physical process of energy conversion in the heliosphere. Parker Solar Probe (PSP) passes through current sheets of the inner heliosphere and is likely to encounter magnetic reconnection events there. PSP traversed a
Rui Zhuo, Jiansen He, Die Duan, Xingyu Zhu, Chuanpeng Hou   +4 more
doaj   +1 more source

JET Formation in Solar Atmosphere Due to Magnetic Reconnection

The Astrophysical Journal, 2017
Using numerical simulations, we show that jets with features of type II spicules and cold coronal jets corresponding to temperatures $10^{4}$ K can be formed due to magnetic reconnection in a scenario in presence of magnetic resistivity. For this we model the low chromosphere-corona region using the C7 equilibrium solar atmosphere model and assuming ...
J. J. González-Avilés, F. S. Guzmán, V. Fedun   +2 more
openaire   +3 more sources

Radiative Signatures of Magnetic Reconnection: An Approach to Remote Probing of Reconnection Dynamics

The Astrophysical Journal
Magnetic reconnection drives a wide range of astrophysical phenomena, including geomagnetic storms, solar flares, and activity in blazars. However, direct measurement of key reconnection observables remains challenging due to the remote and extreme ...
Sergey K. Ermakov, Michael Bussmann, Alexander Debus, Richard Pausch, Ulrich Schramm, René Widera, Klaus Steiniger   +6 more
doaj   +1 more source

Formation of Fan-spine Magnetic Topology through Flux Emergence and Subsequent Jet Production

The Astrophysical Journal Letters
Fan-spine magnetic structure, as a fundamental three-dimensional topology in magnetic reconnection theory, plays a crucial role in producing solar jets. However, how fan-spine configurations form in the solar atmosphere remains elusive. Using the Chinese
Yadan Duan, Hui Tian, Hechao Chen, Yuandeng Shen, Zheng Sun, Zhenyong Hou, Chuan Li   +6 more
doaj   +1 more source

Pinching of ICME Flux Rope: Unprecedented Multipoint Observations of Internal Magnetic Reconnection during Gannon’s Superstorm

The Astrophysical Journal Letters
The extreme solar storm of 2024 May 10, during the 25th solar cycle, which recorded a symmetric H component index (Sym-H) reaching −500 nT, was the strongest since the 2003 Halloween storm.
Shibotosh Biswas, Ankush Bhaskar, Anil Raghav, Ajay Kumar, Kalpesh Ghag, Smitha V. Thampi, Vipin K Yadav   +6 more
doaj   +1 more source

Alfvén Waves from Interchange Reconnection at Separators as a Possible Source of Switchbacks

The Astrophysical Journal
Parker Solar Probe has observed Alfvénic fluctuations of amplitude large enough to occasionally reverse the local magnetic field direction—a phenomenon known as a switchback. Some have attributed switchbacks to reconnection in the low corona between open
Dana Longcope, Philip Klaassen
doaj   +1 more source

Parker Solar Probe Observations of a Flux Rope Embedded in a Near-Sun Heliospheric Current Sheet Magnetic Reconnection Exhaust

The Astrophysical Journal
In situ observations by Parker Solar Probe (PSP) suggest that the heliospheric current sheet (HCS) undergoes near-continuous magnetic reconnection close to the Sun, in stark contrast to scarce observations of this phenomenon in the HCS at 1 au.
Harry C. Lewis, Jonathan P. Eastwood, Tai D. Phan, Naïs Fargette, Stuart D. Bale, Mark Linton, Samuel T. Badman, Jasper S. Halekas, Etienne Berriot, Michael L. Stevens, Joseph H. Wang   +10 more
doaj   +1 more source

Kinetic Simulation of Energy Cascade Associated with Filamentary Currents in Solar Wind Turbulence

The Astrophysical Journal
The role of magnetic reconnection in energy cascade within solar wind turbulence remains a fundamental unsolved problem in astrophysics. We employ a coarse-grained technique to investigate energy cascades at sub-ion scale within filamentary currents (FCs)
Meng Zhang, Meng Zhou, Liangjin Song, Yongyuan Yi, Ye Pang, Runqin Jin, Xiaohua Deng   +6 more
doaj   +1 more source