Results 51 to 60 of about 1,619,607 (208)
On the topology of global coronal magnetic fields [PDF]
, 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
Measurements of the Perpendicular Correlation Length of Coronal Alfvénic Waves with DKIST
The Astrophysical JournalWe have measured the perpendicular correlation length L _⊥ of Alfvénic waves in the corona using data from the Daniel K. Inouye Solar Telescope (DKIST) Cryogenic Near Infrared Spectropolarimeter (Cryo-NIRSP) instrument.
Michael Hahn +3 more
doaj +1 more source
The Coronal Analysis of SHocks and Waves (CASHeW) framework
Journal of Space Weather and Space Climate, 2017 Coronal bright fronts (CBF) are large-scale wavelike disturbances in the solar corona, related to solar eruptions. They are observed (mostly in extreme ultraviolet (EUV) light) as transient bright fronts of finite width, propagating away from the ...
Kozarev Kamen A. +4 more
doaj +1 more source
Influence of the Lower Atmosphere on Wave Heating and Evaporation in Solar Coronal Loops
The Astrophysical Journal Letters, 2023 We model a coronal loop as a 3D magnetic cylinder in a realistic solar atmosphere that extends from the chromosphere to the corona. Kink oscillations, believed to be ubiquitous in the solar corona, are launched in the loop.
Mingzhe Guo +5 more
doaj +1 more source
Space Weather, Volume 24, Issue 9, September 2026.Abstract This paper introduces an updated version of the University of Michigan Geospace model. The Geospace model has been used for operational forecasting at the Space Weather Modeling Center of the National Oceanic and Atmospheric Agency since 2016 with regular updates. The current operational version, Geospace V2, was launched in 2021 and is driven
Gábor Tóth +2 more
wiley +1 more source
On the Origin of a Broad Quasiperiodic Fast-propagating Wave Train: Unwinding Jet as the Driver
The Astrophysical Journal LettersLarge-scale extreme-ultraviolet waves commonly exhibit as single wave front and are believed to be caused by coronal mass ejections. Utilizing high spatiotemporal resolution imaging observations from the Solar Dynamics Observatory, we present two ...
Xinping Zhou +7 more
doaj +1 more source
The Astrophysical Journal Letters, 2023 We propose that coronal heating in EUV coronal plumes is weaker, not stronger, than in adjacent nonplume coronal magnetic funnels. This expectation stems from (i) the observation that an EUV plume is born as the magnetic flux at the foot of the plume’s ...
Ronald L. Moore +3 more
doaj +1 more source
Cross‐Correlations of Solar Wind Parameters Using Monitoring Spacecraft
Space Weather, Volume 24, Issue 9, September 2026.Abstract Space weather predictive modeling currently utilizes real‐time data from the spacecraft ACE and DSCOVR, with SOLAR‐1 and IMAP recently online. This study assesses whether DSCOVR solar wind plasma and interplanetary magnetic field (IMF) data exhibit large‐scale discrepancies from the corresponding ACE data, and if so, whether these ...
P. H. Reiff +5 more
wiley +1 more source
Frequency-dependent Evolution of Propagating Intensity Disturbances in Polar Plumes
The Astrophysical JournalQuasiperiodic disturbances in EUV emission intensity, propagating along polar plumes in the solar corona, are frequently observed. Analysis of these propagating disturbances in the 171 Å bandpass of the Solar Dynamics Observatory/Atmospheric Imaging ...
Kyung-Suk Cho +3 more
doaj +1 more source
Solar wind and kinetic heliophysics [PDF]
Annales Geophysicae, 2018 This paper reviews recent aspects of solar wind physics and elucidates the role Alfvén waves play in solar wind acceleration and turbulence, which prevail in the low corona and inner heliosphere.
E. Marsch, E. Marsch
doaj +1 more source