Results 31 to 40 of about 1,149,927 (208)
3D Solar Coronal Loop Reconstructions with Machine Learning
The Astrophysical Journal Letters, 2021 Abstract The magnetic field plays an essential role in the initiation and evolution of different solar phenomena in the corona. The structure and evolution of the 3D coronal magnetic field are still not very well known. A way to ascertain the 3D structure of the coronal magnetic field is by performing magnetic field extrapolations from ...
Iulia Chifu, Ricardo Gafeira
openaire +4 more sources
On the Nature of the Three-part Structure of Solar Coronal Mass Ejections
The Astrophysical Journal, 2022 Coronal mass ejections (CMEs) result from eruptions of magnetic flux ropes (MFRs) and can possess a three-part structure in white-light coronagraphs, including a bright front, dark cavity, and bright core.
Hongqiang Song +6 more
doaj +1 more source
Numerical simulations of vertical oscillations of a solar coronal loop [PDF]
Astronomy & Astrophysics, 2005 We consider the impulsive excitation of fast vertical kink standing waves in a solar coronal loop that is embedded in a potential arcade. The two-dimensional numerical model we implement includes the effects of field line curvature and nonlinearity on the excitation and damping of standing fast magnetosonic waves.
Selwa, M. +4 more
openaire +3 more sources
The Equilibrium of Coronal Loops Near Separatrices
The Astrophysical Journal, 2023 We present numerical models from the field-aligned HYDrodynamics and RADiation code (HYDRAD) of a highly asymmetric closed coronal loop with near-singular expansion factor.
Emily I Mason +2 more
doaj +1 more source
Dynamics of solar coronal loops [PDF]
Astronomy & Astrophysics, 2004 13 pages, 15 ...
Müller, Daniel +2 more
openaire +3 more sources
Transverse, propagating velocity perturbations in solar coronal loops [PDF]
Plasma Physics and Controlled Fusion, 2015 This short review paper gives an overview of recently observed transverse, propagating velocity perturbations in coronal loops. These ubiquitous perturbations are observed to undergo strong damping as they propagate. Using 3D numerical simulations of footpoint-driven transverse waves propagating in a coronal plasma with a cylindrical density structure,
De Moortel, Ineke +3 more
openaire +3 more sources
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
core +1 more source
Coronal Loops with Different Metallicities and Generalized RTV Scaling Laws
The Astrophysical Journal, 2023 Stellar metallicity is a critical factor to characterize the stellar coronae because it directly affects the radiative energy loss from the atmosphere.
Haruka Washinoue, Takeru K. Suzuki
doaj +1 more source
A solar storm observed from the Sun to Venus using the STEREO, Venus Express, and MESSENGER spacecraft [PDF]
, 2009 The suite of SECCHI optical imaging instruments on the STEREO-A spacecraft is used to track a solar storm, consisting of several coronal mass ejections (CMEs) and other coronal loops, as it propagates from the Sun into the heliosphere during May 2007 ...
Anderson, B. +25 more
core +6 more sources
Propagation and damping of MHD waves in the solar atmosphere [PDF]
, 2015 Quasi-periodic disturbances have been observed in the outer solar atmosphere for many years. Although first interpreted as upflows (Schrijver et al.
Kiddie, Greg
core +2 more sources