Results 21 to 30 of about 514,697 (295)

Toroidal modeling of penetration of the resonant magnetic perturbation field [PDF]

open access: yes, 2013
A toroidal, quasi-linear model is proposed to study the penetration dynamics of the resonant magnetic perturbation (RMP) field into the plasma. The model couples the linear, fluid plasma response to a toroidal momentum balance equation, which includes ...
Kirk, A., Liu, Yueqiang, Sun, Y.
core   +2 more sources

3D Radio and X-Ray Modeling and Data Analysis Software: Revealing Flare Complexity [PDF]

open access: yes, 2015
We have undertaken a major enhancement of our IDL-based simulation tools developed earlier for modeling microwave and X-ray emission. The object-based architecture provides an interactive graphical user interface that allows the user to import ...
Fleishman, Gregory D.   +4 more
core   +2 more sources

Numerical Optimization and Map-Based Manipulation With a Quadrupole Electromagnetic Actuated System

open access: yesFrontiers in Neurorobotics, 2022
Electromagnetic actuation is a new technique for non-invasive manipulation, which provides wireless and controllable power source for magnetic micro-/nano-particles.
Weicheng Ma, Zhijie Huan, Min Xu
doaj   +1 more source

Using Coronal Loops to Reconstruct the Magnetic Field of an Active Region Before and After a Major Flare [PDF]

open access: yes, 2013
The shapes of solar coronal loops are sensitive to the presence of electrical currents that are the carriers of the nonpotential energy available for impulsive activity.
DeRosa, M. L.   +3 more
core   +1 more source

Multiwavelength Magnetic Field Modeling [PDF]

open access: yesProceedings of the International Astronomical Union, 2012
AbstractWe model the large-scale Galactic magnetic fields, including a spiral arm compression to generate anisotropic turbulence, by comparing polarized synchrotron and thermal dust emission. Preliminary results show that in the outer Galaxy, the dust emission comes from regions where the fields are more ordered than average while the situation is ...
openaire   +1 more source

Localized magnetic field in the O(N) model [PDF]

open access: yesJournal of High Energy Physics, 2022
Abstract We consider the critical O(N) model in the presence of an external magnetic field localized in space. This setup can potentially be realized in quantum simulators and in some liquid mixtures. The external field can be understood as a relevant perturbation of the trivial line defect, and thus triggers a defect ...
Gabriel Cuomo   +2 more
openaire   +4 more sources

Modelling stellar coronal magnetic fields [PDF]

open access: yesProceedings of the International Astronomical Union, 2010
AbstractOur understanding of the structure and dynamics of stellar coronae has changed dramatically with the availability of surface maps of both star spots and also magnetic field vectors. Magnetic field extrapolations from these surface maps reveal surprising coronal structures for stars whose masses and hence internal structures and dynamo modes may
Jardine, Moira   +3 more
openaire   +2 more sources

Guided flows in coronal magnetic flux tubes [PDF]

open access: yes, 2017
There is evidence for coronal plasma flows to break down into fragments and to be laminar. We investigate this effect by modeling flows confined along magnetic channels. We consider a full MHD model of a solar atmosphere box with a dipole magnetic field.
Petralia, A., Reale, F., Testa, P.
core   +6 more sources

Properties of the warm magnetized ISM, as inferred from WSRT polarimetric imaging [PDF]

open access: yes, 2004
We describe a first attempt to derive properties of the regular and turbulent Galactic magnetic field from multi-frequency polarimetric observations of the diffuse Galactic synchrotron background.
A. G. de Bruyn   +40 more
core   +3 more sources

A Lagrangian model for the evolution of turbulent magnetic and passive scalar fields [PDF]

open access: yes, 2010
In this paper we present an extension of the \emph{Recent Fluid Deformation (RFD)} closure introduced by Chevillard and Meneveau (2006) which was developed for modeling the time evolution of Lagrangian fluctuations in incompressible Navier-Stokes ...
Grauer, R., Hater, T., Homann, H.
core   +2 more sources

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