Results 1 to 10 of about 1,612,051 (179)

Pulsar current sheet Cerenkov radiation [PDF]

Astronomy & Astrophysics, 2018
Plasma-filled pulsar magnetospheres contain thin current sheets wherein the charged particles are accelerated by magnetic reconnections to travel at ultra-relativistic speeds. On the other hand, the plasma frequency of the more regular force-free regions
Zhang, Fan
core   +2 more sources

Microwave imaging of quasi-periodic pulsations at flare current sheet [PDF]

Nature Communications, 2022
Quasi-periodic pulsations (QPPs) are frequently detected in solar and stellar flares, but the underlying physical mechanisms are still to be ascertained.
Yuankun Kou, Xin Cheng, Yulei Wang, Sijie Yu, Bin Chen, Eduard P. Kontar, Mingde Ding   +6 more
doaj   +2 more sources

The Schatten current sheet

Frontiers in Astronomy and Space Sciences
Space weather models endeavoring to connect remote observations to in-situ measurements at various locations in the heliosphere invariably require a coronal model to connect the photosphere magnetically to the inner heliosphere.
Kalman J. Knizhnik
doaj   +2 more sources

Magnetohydrodynamic Simulation of Forced Magnetic Reconnection [PDF]

Iranian Journal of Astronomy and Astrophysics, 2023
Magnetic reconnection is a fundamental process in laboratory, astrophysical, and space plasmas, which is a mechanism for converting magnetic energy into the thermal and kinetic energy of plasma and the efficient acceleration of charged particles.
Masom Sarkhosh, Mahboub Hosseinpour, Mohammad Ali Mohammadi   +2 more
doaj   +1 more source

Response timescales of the magnetotail current sheet during a geomagnetic storm: Global MHD simulations

Frontiers in Astronomy and Space Sciences, 2022
The response of the Earth’s magnetotail current sheet to the external solar wind driver is highly time-dependent and asymmetric. For example, the current sheet twists in response to variations in the By component of the interplanetary magnetic field (IMF)
J. W. B. Eggington, J. C. Coxon, R. M. Shore, R. T. Desai, L. Mejnertsen, J. P. Chittenden, J. P. Eastwood   +6 more
doaj   +1 more source

Structure and local parameters of self-compressed plasma streams in external magnetic field

Nukleonika, 2023
The influence of the external axial magnetic field on pinching plasma flows generated by a magnetoplasma compressor (MPC) has been studied using magnetic and electric probes.
Volkova Yuliia, Solyakov Dmytro, Marchenko Anna, Chebotarev Volodymyr, Garkusha Igor, Makhlai Vadym, Ladygina Maryna, Merenkova Tetyana, Yeliseyev Dmytro, Petrov Yurii, Staltsov Valerii   +10 more
doaj   +1 more source

MHD Simulations of the Solar Corona to Determine the Conditions for Large Solar Flares and the Acceleration of Cosmic Rays during Them

Physics, 2023
Solar cosmic rays (SCRs) are generated during the primordial energy release in solar flares. This explosive process takes place in the solar corona above the active region. It represents the fast release of the magnetic field energy of the current sheet,
Alexander Podgorny, Igor Podgorny, Alexei Borisenko   +2 more
doaj   +1 more source

Investigation of the mechanism of a solar flare by means of MHD simulations above the active region in real scale of time: The choice of parameters and the appearance of a flare situation

Open Astronomy, 2022
The observed primordial energy release of solar flare in the corona is explained by the mechanism of S. I. Syrovatskii, according to which the flare energy is accumulated in the current sheet.
Podgorny Alexander Igorevich, Podgorny Igor Maximovich, Borisenko Alexei Vasilevich   +2 more
doaj   +1 more source

Magnetic Reconnection in the Martian Magnetotail: Occurrence Rate and Impact on Ion Loss

Geophysical Research Letters, 2023
The current sheet is crucial in releasing magnetic free energy in cosmic plasmas via fast magnetic reconnection or wave excitation. This research investigates the characteristics of the Martian tail current sheet by analyzing data acquired from the Mars ...
Lei Wang, Can Huang, Aimin Du, Yasong Ge, Guo Chen, Jinqiao Fan, Jipeng Qin   +6 more
doaj   +1 more source

Multispacecraft wave analysis of current sheet flapping motions in Earth’s magnetotail

Frontiers in Astronomy and Space Sciences, 2023
In our work, for the first time, we conducted a comprehensive multispacecraft wave study of flapping current sheet oscillations in Earth’s magnetotail.
Bohdan Petrenko, Bohdan Petrenko, Liudmyla Kozak, Liudmyla Kozak, Elena Kronberg, Roman Akhmetshyn   +5 more
doaj   +1 more source