Results 41 to 50 of about 1,735 (184)

Magnetic reconnection in the solar atmosphere: from proposal to paradigm [PDF]

Astronomy & Geophysics, 2010
Meeting report On 13 November 2009, the RAS hosted a discussion meeting to commemorate the formal retirement of Prof. Eric Priest. Here Peter Cargill, Clare Parnell, Philippa Browning, Ineke de Moortel and Alan Hood examine how magnetic reconnection has evolved over the past 50 years from an important but controversial proposal, to a general paradigm. ©
Cargill, Peter, Parnell, Clare, Browning, Philippa; id_orcid 0000-0002-7089-5562, de Moortel, Ineke, Hood, Alan   +4 more
openaire   +1 more source

First-principles theory of the rate of magnetic reconnection in magnetospheric and solar plasmas

Communications Physics, 2022
Different models exist to characterize magnetic reconnection, a process that converts magnetic energy into plasma thermal and kinetic energy, but a quantitative theoretical predictive model of how rapidly it proceeds has been lacking.
Yi-Hsin Liu, Paul Cassak, Xiaocan Li, Michael Hesse, Shan-Chang Lin, Kevin Genestreti   +5 more
doaj   +1 more source

Observations of a Quickly Flapping Interplanetary Magnetic Reconnection Exhaust

Frontiers in Physics, 2021
On the basis of the Petschek reconnection model and the characteristics of reconnection, hundreds of reconnection exhausts were reported in the solar wind.
Jiemin Wang, Jiemin Wang, Yan Zhao, Yan Zhao   +3 more
doaj   +1 more source

Coincident ENA and Narrowband Radio Emissions as Diagnostics of Inward Plasma Transport at Saturn

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract Saturn's kilometric radiation (SKR) and Energetic Neutral Atom (ENA) emissions are important diagnostics of the planet's magnetospheric dynamics, intensifying during global plasma injections and displaying characteristic planetary periodicity. Related to the SKR emissions are myriametric narrowband radio emissions that typically appear in the ...
J. Kinrade, S. V. Badman, S. Y. Wu, C. Paranicas, C. M. Jackman, L. S. Clare, C. K. Louis   +6 more
wiley   +1 more source

THE ACCELERATION OF IONS IN SOLAR FLARES DURING MAGNETIC RECONNECTION [PDF]

The Astrophysical Journal, 2011
The acceleration of solar flare ions during magnetic reconnection is explored via particle-in-cell simulations that self-consistently follow the motions of both protons and $α$ particles. We demonstrate that the dominant ion heating during reconnection with a guide field (a magnetic component perpendicular to the reconnection plane) results from pickup
Knizhnik, Kalman, Swisdak, Marc, Drake, James F.   +2 more
openaire   +2 more sources

Witnessing Magnetic Reconnection in Tangled Superpenumbral Fibrils around a Sunspot

The Astrophysical Journal
3D magnetic reconnection is a fundamental plasma process crucial for heating the solar corona and generating the solar wind, but resolving and characterizing it for the Sun remain challenging.
Hechao Chen, Hui Tian, Eric R. Priest, Christopher B. Prior, Chun Xia, Anthony R. Yeates, Xiaoli Yan, Yadan Duan, Zhenyong Hou, Zhenghua Huang, Oliver E. K. Rice   +10 more
doaj   +1 more source

Weak Bidirectional Outflows and Flare Current Sheet in a Solar Coronal Jet Driven by the Eruption of a Minifilament

The Astrophysical Journal, 2023
Different from the classical emerging-flux model for solar jets, recent studies proposed that the great majority of solar coronal jets are triggered by minifilament eruptions and two magnetic reconnection processes should take place during the course ...
Jiayan Yang, Junchao Hong, Bo Yang, Yi Bi, Zhe Xu   +4 more
doaj   +1 more source

Statistical Survey of Cosmic Noise Absorption in Conjunction With Plasma Wave Measurements

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract Using a decade of observations from the Canadian Geospace Observatory Riometer Network (GO‐RIO), we selected an east‐west subset of stations near L∼7 $L\sim 7$ to classify cosmic noise absorption (CNA) (a proxy for enhanced D‐region ionization) into two morphologies, simultaneous and drifting, based on the relative timing of signals across the
R. Ghaffari, C. M. Cully, E. Spanswick, R. A. D. Fiori   +3 more
wiley   +1 more source

PLASMA COMPRESSION IN MAGNETIC RECONNECTION REGIONS IN THE SOLAR CORONA [PDF]

The Astrophysical Journal, 2016
ABSTRACT It has been proposed that particles bouncing between magnetized flows converging in a reconnection region can be accelerated by the first-order Fermi mechanism. Analytical considerations of this mechanism have shown that the spectral index of accelerated particles is related to the total plasma compression within the ...
E. Provornikova, J. M. Laming, V. S. Lukin   +2 more
openaire   +2 more sources

Low Frequency Extensions of Cyclotron Maser Instability‐Generated Radio Emission: A Statistical View From Cassini at Saturn

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract The Cassini spacecraft spent 13 years orbiting Saturn, quasi‐continuously measuring Saturn's radio emissions. One of the key elements of the radio spectrum at Saturn is the Saturn Kilometric Radiation (SKR), and several studies have been written on events called Low Frequency Extensions (LFEs) which represent strong, continuous extensions of ...
C. M. Jackman, A. R. Fogg, S. W. H. Cowley, G. Provan, H. Adamski, N. M. Besch, D. M. Hollman, S. Walker, M. J. Rutala, L. Lamy, C. K. Louis, E. P. O’Dwyer   +11 more
wiley   +1 more source