Results 91 to 100 of about 1,261,581 (220)
Solar cycle dependence of scaling in solar wind fluctuations [PDF]
, 2008 In this review we collate recent results for the statistical scaling properties of fluctuations in the solar wind with a view to synthesizing two descriptions: that of evolving MHD turbulence and that of a scaling signature of coronal origin that ...
B. Hnat +6 more
core +2 more sources
Coronal mass ejections and their associations with solar flares and coronal holes
, 1992 64-69The results of an analysis of the associations of coronal mass ejections (CMEs) with solar flares and coronal holes are presented. Out of 79 CMEs whose locations and span are known, 10 CMEs circles contain solar flares.
Verma, V K
core
Solar activity during Skylab: Its distribution and relation to coronal holes [PDF]
, 1978 Solar active regions observed during the period of Skylab observations (May 1973-February 1974) were examined for properties that varied systematically with location on the sun, particularly with respect to the location of coronal holes. Approximately 90
Speich, D. M. +3 more
core
Alfvén Waves from Interchange Reconnection at Separators as a Possible Source of Switchbacks
The Astrophysical JournalParker Solar Probe has observed Alfvénic fluctuations of amplitude large enough to occasionally reverse the local magnetic field direction—a phenomenon known as a switchback. Some have attributed switchbacks to reconnection in the low corona between open
Dana Longcope, Philip Klaassen
doaj +1 more source
, 2009 The fast solar wind originates from polar coronal holes. Recent observations from SoHO suggest that the solar wind is flowing from funnel-shaped magnetic fields anchored in the lanes of the magnetic network at the solar surface.
Banerjee, D., D. Banerjee
core +1 more source
Coronal Holes and Open Magnetic Flux over Cycles 23 and 24 [PDF]
, 2016 As the observational signature of the footprints of solar magnetic field lines open into the heliosphere, coronal holes provide a critical measure of the structure and evolution of these lines.
Jiong Qiu +5 more
core +2 more sources
Hydrostatic and dynamic models of solar coronal holes
The Astrophysical Journal, 1977 A description is presented of a sequence of one-dimensional fluid flow models of the transition zone and the inner corona. A hydrostatic model atmosphere in reasonable agreement with observations of closed, large-scale coronal structures found in the quiet sun is considered and various physical effects are introduced, one at a time, observing the ...
R. Rosner, G. S. Vaiana
openaire +1 more source
Journal of Space Weather and Space Climate, 2012 In past studies, we classified the near-Earth solar wind into three basic flow types based on inspection of solar wind plasma and magnetic field parameters in the OMNI database and additional data (e.g., geomagnetic indices, energetic particle, and ...
Richardson Ian G., Cane Hilary V.
doaj +1 more source
Automatic Segmentation of Coronal Holes in Solar Images and Solar Prediction Map Classification [PDF]
, 2016 Solar image analysis relies on the detection of coronal holes for predicting disruptions to earth’s magnetic field. The coronal holes act as sources of solar wind that can reach the earth.
Jatla, Venkatesh
core
The Astrophysical Journal LettersWhile the amount of solar coronal energy flux leaving the “quiet” Sun, coronal holes, and active regions has been estimated by many, similar calculations for transients like coronal mass ejections (CMEs) based on observations are few. Using spectroscopic
R. Ramesh +5 more
doaj +1 more source