Results 21 to 30 of about 2,802,659 (186)

Coronal Mass Ejections and Solar Radio Emissions (invited) [PDF]

open access: yesPLANETARY RADIO EMISSIONS VII, 2011
Three types of low-frequency nonthermal radio bursts are associated with coronal mass ejections (CMEs): Type III bursts due to accelerated electrons propagating along open magnetic field lines, type II bursts due to electrons accelerated in shocks, and type IV bursts due to electrons trapped in post-eruption arcades behind CMEs.
openaire   +1 more source

MHD turbulence and heating of the open field-line solar corona [PDF]

open access: yes, 2003
This paper discusses the possibility that heating of the solar corona in open field-line regions emanating from coronal holes is due to a nonlinear cascade, driven by low-frequency or quasi-static magnetohydrodynamic fluctuations.
Dmitruk, Pablo   +13 more
core   +2 more sources

On the topology of global coronal magnetic fields [PDF]

open access: yes, 2014
This thesis considers the magnetic topology of the global solar corona. To understand the magnetic topology we use the magnetic skeleton which provides us with a robust description of the magnetic field.
Edwards, Sarah J.
core   +2 more sources

3D reconstruction of coronal loops by the principal component analysis [PDF]

open access: yes, 2013
Knowing the three dimensional structure of plasma filaments in the uppermost part of the solar atmosphere, known as coronal loops, and especially their length, is an important parameter in the wave-based diagnostics of this part of the Sun.
Nisticò, Giuseppe   +6 more
core   +1 more source

The Sun's global photospheric and coronal magnetic fields : observations and models [PDF]

open access: yes, 2012
2012LRSP....9....6M Funding: STFC, the Leverhulme Trust and European Commission’s Seventh Framework Programme (FP7/2007-2013) under the grant agreement SWIFF (project no.
Anthony Yeates   +6 more
core   +1 more source

High-frequency Alfven waves in multi-ion coronal plasma : observational implications [PDF]

open access: yes, 2005
We investigate the effects of high-frequency (of order ion gyrofrequency) Alfvén and ion-cyclotron waves on ion emission lines by studying the dispersion of these waves in a multi-ion coronal plasma.
Ofman, L. (Leon)   +3 more
core   +1 more source

Complex Type II Solar Radio Event on 4 July 2022

open access: yes, 2022
Publisher Copyright: © 2022 J. Kallunki et al., published by Sciendo.On 4 July 2022, a complex low-frequency solar radio burst was observed in Metsähovi Radio Observatory of Aalto University.
Kallunki, J., J. Kallunki
core   +1 more source

Radio Measurements of the Magnetic Field in the Solar Chromosphere and the Corona

open access: yesFrontiers in Astronomy and Space Sciences, 2021
The structure of the upper solar atmosphere, on all observable scales, is intimately governed by the magnetic field. The same holds for a variety of solar phenomena that constitute solar activity, from tiny transient brightening to huge Coronal Mass ...
Costas E. Alissandrakis, Dale E. Gary
doaj   +1 more source

Spectral Analysis of Solar Radio Type III Bursts from 20 kHz to 410 MHz

open access: yesThe Astrophysical Journal, 2022
We present the statistical analysis of the spectral response of solar radio type III bursts over the wide frequency range between 20 kHz and 410 MHz. For this purpose, we have used observations that were carried out using both spaced-based (Wind/Waves ...
K. Sasikumar Raja   +12 more
doaj   +1 more source

Effect of structuring on coronal loop oscillations [PDF]

open access: yes, 2007
In this Thesis the theoretical understanding of oscillations in coronal structures is developed. In particular, coronal loops are modelled as magnetic slabs of plasma.
McEwan, Michael P.
core   +2 more sources

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