Results 61 to 70 of about 16,482 (212)

Simultaneously Excited Narrow and Broad Quasiperiodic Fast-propagating Wave Trains in the Solar Corona

The Astrophysical Journal
The response of a solar coronal plasma loop to an impulsive perturbation, demonstrating the simultaneous formation of guided and leaky fast magnetoacoustic wave trains, is numerically studied.
Mijie Shi, Valery M. Nakariakov, Bo Li, Mingzhe Guo   +3 more
doaj   +1 more source

Effect of coronal temperature on the scale of solar chromospheric jets

, 2015
We investigate the effect of coronal temperature on the formation process of solar chromospheric jets using two-dimensional magnetohydrodynamic simulations of the region from the upper convection zone to the lower corona.
Iijima, H., Yokoyama, T.
core   +1 more source

Parker Solar Probe Observations of Proton Core‐Beam Distributions in Heliospheric Current Sheet Region: Quasilinear Instability Analysis Combined With Collisional Relaxation

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract Parker Solar Probe has been proven as instrumental for the observation of young solar wind. During the encounters E‐07 and E‐08, PSP recorded the core plus beaming protons crossing the heliospheric current Sheet region. When the observed PSP data is plotted in the temperature ratio versus parallel beta space, it is found that the occurrence ...
M. Rashid, P. H. Yoon, J. Huang, C. Salem, M. Sarfraz, S. Alnussirat, R. A. López, J. Seough, H. Xie, D. Larson, R. Livi   +10 more
wiley   +1 more source

Identification of Nonlinear Damping of Transverse Loop Oscillations by KHI-induced Turbulence

The Astrophysical Journal
Kink oscillations in coronal loops have been extensively studied for their potential contributions to coronal heating and their role in plasma diagnostics through coronal seismology. A key focus is the strong damping of large-amplitude kink oscillations,
Sihui Zhong, Andrew Hillier, Iñigo Arregui   +2 more
doaj   +1 more source

Alfvén Wave Conversion and Reflection in the Solar Chromosphere and Transition Region

Physics, 2022
Series solutions are used to explore the mode conversion of slow, Alfvén and fast magnetohydrodynamic waves injected at the base of a two-isothermal-layer stratified atmosphere with a uniform magnetic field, crudely representing the solar chromosphere ...
Paul Cally
doaj   +1 more source

ULF Wave Modulation of Energetic Electron Precipitation Caused by the Self‐Limiting of Space Radiation: May 2024 Superstorm Observations

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract The May 2024 geomagnetic superstorm provided the opportunity to explore how strong wave‐particle interactions affect energetic electron precipitation under intense driving. Using coordinated measurements from a balloon‐borne Timepix‐based X‐ray detector, ground‐based riometers and magnetometers, and Arase satellite observations, we identified ...
L. Olifer, D. Zhou, M. Patel, I. R. Mann, M. K. Hudson, A. W. Degeling, C. O. Heinke, G. R. Sivakoff, A. Kale, S. Kasahara, S. Yokota, K. Keika, T. Hori, T. Mitani, T. Takashima, Y. Kasahara, S. Matsuda, A. Shinbori, A. Matsuoka, M. Teramoto, K. Yamamoto, I. Shinohara, Y. Miyoshi   +22 more
wiley   +1 more source

Three-dimensional propagation of kink wave trains in solar coronal slabs

Monthly Notices of the Royal Astronomical Society: Letters, 2022
ABSTRACT Impulsively excited wave trains are of considerable interest in solar coronal seismology. To our knowledge, however, it remains to examine the three-dimensional (3D) dispersive propagation of impulsive kink waves in straight, field-aligned, symmetric, low-beta, slab equilibria that are structured only in one transverse direction.
Li, Bo, Guo, Mingzhe, Yu, Hui, Chen, Shao-Xia, Shi, Mijie   +4 more
openaire   +3 more sources

On the Existence of Long-period Decayless Oscillations in Short Active Region Loops

The Astrophysical Journal
Decayless kink oscillations, characterized by their lack of decay in amplitude, have been detected in coronal loops of varying scales in active regions, the quiet Sun, and coronal holes. Short-period (
Arpit Kumar Shrivastav, Vaibhav Pant, Rohan Kumar, David Berghmans, Tom Van Doorsselaere, Dipankar Banerjee, Elena Petrova, Daye Lim   +7 more
doaj   +1 more source

Propagating waves in polar coronal holes as seen by SUMER and EIS

, 2009
To study the dynamics of coronal holes and the role of waves in the acceleration of the solar wind, spectral observations were performed over polar coronal hole regions with the SUMER spectrometer on SoHO and the EIS spectrometer on Hinode.
Banerjee, Banerjee, Banerjee, Culhane, D. Banerjee, Deforest, G. R. Gupta, G. Stenborg, Kosugi, L. Teriaca, O'Shea, O'Shea, O'Shea, Ofman, Ofman, Ofman, Ofman, Popescu, S. Imada, S. K. Solanki, Torrence, Wilhelm   +21 more
core   +1 more source

Evolution of Alfven wave-driven solar winds to red giants [PDF]

, 2007
In this talk we introduce our recent results of global 1D MHD simulations for the acceleration of solar and stellar winds. We impose transverse photospheric motions corresponding to the granulations, which generate outgoing Alfven waves. The Alfven waves
Axford, Banerjee, Heyvaerts, Holweger, Kojima, Landini, Renzini, Suzuki, Takeru K. Suzuki, Tsurutani   +9 more
core   +1 more source