Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Gómez, Daniel O."'
Autor:
Gomez, Daniel O., Kandus, Alejandra
We extend the classical two-fluid magnetohydrodynamic (MHD) formalism to include quantum effects such as electron Fermi pressure, Bohm pressure and spin couplings. At scales smaller than the electron skin-depth, the Hall effect and electron inertia m
Externí odkaz:
http://arxiv.org/abs/1809.05056
Recent high resolution AIA/SDO images show evidence of the development of the Kelvin-Helmholtz instability, as coronal mass ejections (CMEs) expand in the ambient corona. A large-scale magnetic field mostly tangential to the interface is inferred, bo
Externí odkaz:
http://arxiv.org/abs/1408.2598
Publikováno v:
Phys. Rev. E 89, 053105 (2014)
We study the stability of shear flows in a fully ionized plasma. Kelvin-Helmholtz is a well known, macroscopic and ideal shear-driven instability. In sufficiently low density plasmas, also the microscopic Hall magneto-shear instability can take place
Externí odkaz:
http://arxiv.org/abs/1405.6220
Even though the solar wind is highly supersonic, intense ultra-low frequency (ULF) wave activity has been detected in regions just upstream of the bow shocks of magnetized planets. This feature was first observed ahead of the Earth's bow shock, and t
Externí odkaz:
http://arxiv.org/abs/1208.0878
Much of the progress in our understanding of dynamo mechanisms has been made within the theoretical framework of magnetohydrodynamics (MHD). However, for sufficiently diffuse media, the Hall effect eventually becomes non-negligible. We present result
Externí odkaz:
http://arxiv.org/abs/1005.5422
Autor:
Vasquez, Alberto M., Gomez, Daniel O.
Publikováno v:
Astrophys.J. 607 (2004) 1024-1031
The study of the evolution of a suprathermal electron beam traveling through a background plasma is relevant for the physics of solar flares and their associated type III solar radio bursts. As they evolve guided by the coronal magnetic field-lines,
Externí odkaz:
http://arxiv.org/abs/astro-ph/0312339
Publikováno v:
Phys. Plasmas, 10, 3584, 2003; http://link.aip.org/link/?php/10/3584
The nonlinear dynamics of a bundle of magnetic flux ropes driven by stationary fluid motions at their endpoints is studied, by performing numerical simulations of the magnetohydrodynamic (MHD) equations. The development of MHD turbulence is shown, wh
Externí odkaz:
http://arxiv.org/abs/physics/0309111
Autor:
Dmitruk, Pablo, Gomez, Daniel O.
We perform direct numerical simulations of an externally driven two-dimensional magnetohydrodynamic system over extended periods of time to simulate the dynamics of a transverse section of a solar coronal loop. A stationary and large-scale magnetic f
Externí odkaz:
http://arxiv.org/abs/astro-ph/9705050
Akademický článek
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Publikováno v:
In Physica A: Statistical Mechanics and its Applications 2005 349(3):667-674