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Coronal holes and solar-terrestrial relationships
Geofísica Internacional, 1991 En este trabajo se discute el papel que juegan los hoyos coronales del Sol en las perturbaciones del viento solar y en las alteraciones del ambiente terrestre.
S. Bravo
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Unipolarity of the Solar Magnetic Field in Equatorial Coronal Holes
The Astrophysical JournalA study of the unbalanced magnetic polarity distribution of 70 coronal holes was performed. Data from the Helioseismic and Magnetic Imager were used to examine the photospheric line-of-sight magnetic field ( B _LOS ) beneath these coronal holes.
Khagendra Katuwal, R. T. James McAteer
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Long-term evolution of solar coronal holes [PDF]
, 2023 Solar coronal holes are regions of open magnetic field lines in the solar corona. They are the source region of high-speed solar wind streams that play an important role for geomagnetic activity and are the most important driver of energetic particle ...
Hamada, Amr
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Ion-cyclotron waves in solar coronal hole [PDF]
New Astronomy, 2012 We investigate the effect of the Plume/Interplume Lane (PIPL) structure of the solar Polar Coronal Hole (PCH) on the propagation characteristics of ion-cyclotron waves (ICW). The gradients of physical parameters determined by SOHO and TRACE satellites both parallel and perpendicular to the magnetic field are considered with the aim of determining how ...
Dogan S., Pekünlü E.R.
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DARK JETS IN SOLAR CORONAL HOLES [PDF]
The Astrophysical Journal, 2015 16 pages, 12 figures, submitted to ...
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The Sun's global photospheric and coronal magnetic fields : observations and models [PDF]
, 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
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Solar Mass Ejections and Coronal Holes [PDF]
International Astronomical Union Colloquium, 1996 AbstractIn this paper we present observations of two types of solar mass ejections, which seem to be associated with the location of coronal holes. In the first type, a filament eruption was observed near a coronal hole, which gave rise to a strong interplanetary scintillations, as detected by IPS observations.
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High-frequency Alfven waves in multi-ion coronal plasma : observational implications [PDF]
, 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
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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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Investigating Alfvénic wave propagation in coronal open-field regions [PDF]
, 2015 The physical mechanisms behind accelerating solar and stellar winds are a long-standing astrophysical mystery, although recent breakthroughs have come from models invoking the turbulent dissipation of Alfvén waves.
Morton, Richard +2 more
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