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- Centre National de la Recherche ScientifiqueFR299 papers
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6 papers · 2 filters
Turbulence, Complexity, and Solar Flares
R. T. James McAteer, Peter T. Gallagher, Paul A. Conlon
The issue of predicting solar flares is one of the most fundamental in physics, addressing issues of plasma physics, high-energy physics, and modelling of complex systems. It also…
TEXES Observations of M Supergiants: Dynamics and Thermodynamics of Wind Acceleration
G. M. Harper, M. J. Richter, N. Ryde +4
We have detected [Fe II] 17.94 um and 24.52 um emission from a sample of M supergiants using TEXES on the IRTF. These low opacity emission lines are resolved at R = 50, 000 and pro…
Reconstructing the 3-D Trajectories of CMEs in the Inner Heliosphere
Shane A. Maloney, Peter T. Gallagher, R. T. James McAteer
A method for the full three-dimensional (3-D) reconstruction of the trajectories of coronal mass ejections (CMEs) using Solar TErrestrial RElations Observatory (STEREO) data is pre…
Automated Coronal Hole Detection using Local Intensity Thresholding Techniques
Larisza D. Krista, Peter T. Gallagher
We identify coronal holes using a histogram-based intensity thresholding technique and compare their properties to fast solar wind streams at three different points in the heliosph…
A Critical Assessment of Nonlinear Force-Free Field Modeling of the Solar Corona for Active Region 10953
Marc L. DeRosa, Carolus J. Schrijver, Graham Barnes +16
Nonlinear force-free field (NLFFF) models are thought to be viable tools for investigating the structure, dynamics and evolution of the coronae of solar active regions. In a series…
The kinematics of coronal mass ejections using multiscale methods
Jason P. Byrne, Peter T. Gallagher, R. T. James McAteer +1
The diffuse morphology and transient nature of coronal mass ejections (CMEs) make them difficult to identify and track using traditional image processing techniques. We apply multi…