Results 11 to 20 of about 10,701,163 (203)
Restoration of the K and F Components of the Solar Corona from LASCO-C2 Images over 24 Years [1996 – 2019] [PDF]
Solar Physics, 2021 International audienceWe present a photometrically accurate restoration of the K- and F-coronae from white-light images obtained over 24 years [1996 – 2019] by the Large-Angle Spectrometric COronagraph (LASCO-C2) onboard the Solar and Heliospheric ...
Lamy, Philippe +9 more
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Tomographic Reconstruction of the Solar K-Corona using Neural Fields
Solar Physics, 2023 Abstract We explore the application of neural fields for tomographic reconstructions of the solar corona using data from the LASCO-C2 instrument. We first demonstrate their ability to recover the electron density volume in a synthetic static case, utilizing a simulated 3D model of the corona.
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Current sheets in the solar corona : formation, fragmentation and heating [PDF]
, 2011 In this thesis we investigate current sheets in the solar corona. The well known 1D model for the tearing mode instability is presented, before progressing to 2D where we introduce a non-uniform resistivity.
Bowness, Ruth
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MHD turbulence and heating of the open field-line solar corona [PDF]
, 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
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The F and K Components of the Solar Corona
The Astrophysical Journal, 1972 Numerical calculations of the F component are conducted for a large range of parameters, particle size distribution, minimum particle size, minimum approach to the sun, albedo, and spatial distribution. Various parametrized functional forms for the electron spatial distribution are assumed, and the parametrical elongation dependence of the K ...
Roosevelt Calbert, David B. Beard
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A new approach to the maser emission in the solar corona [PDF]
, 2015 Aims. The electron plasma frequency ωpe and electron gyrofrequency Ωe are two parameters that allow us to describe the properties of a plasma and to constrain the physical phenomena at play, for instance, whether a maser instability develops.
Regnier, Stephane, S. Régnier
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Topological structure of the magnetic solar corona [PDF]
, 2007 The solar corona is a highly complex and active plasma environment, containing many exotic phenomena such as solar flares, coronal mass ejections, prominences, coronal loops, and bright points.
Maclean, Rhona Claire
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Mass Motions and Plasma Properties in the 107K Flare Solar Corona
The Astrophysical Journal, 2003 In the present work, we analyze Solar Ultraviolet Measurement of Emitted Radiation (SUMER) observations of a solar limb flare that occurred on 1999 May 9. The analyzed data cover a time span of around 6.4 hr, during which an M-7.6 flare erupted and decayed in the field of view.
Landi, E. +3 more
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Seismological demonstration of perpendicular density structuring in the solar corona [PDF]
, 2008 The peculiarities of the propagating transverse waves observed in the solar corona with the CoronalMulti-channel Polarimeter (CoMP)indicate the existence of fine field structuring in the coronal density.
V. M. Nakariakov +7 more
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The propagation and damping of slow magnetoacoustic waves in the solar atmosphere [PDF]
, 2012 The propagation and damping of slow magnetoacoustic waves in the solar atmosphere is investigated, with particular emphasis placed on waves with periodicities of five minutes. The basic model of a uniform temperature loop is extended by the addition of
Owen, Nicholas Robert
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