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Gómez, D.O.; Bejarano, C.; Mininni, P.D. "Kelvin-Helmholtz versus Hall magnetoshear instability in astrophysical flows" (2014) Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 89(5)
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Abstract:

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 magnetoshear instability can take place. We performed three-dimensional simulations of the Hall-magnetohydrodynamic equations where these two instabilities are present, and carried out a comparative study. We find that when the shear flow is so intense that its vorticity surpasses the ion-cyclotron frequency of the plasma, the Hall magnetoshear instability is not only non-negligible, but it actually displays growth rates larger than those of the Kelvin-Helmholtz instability. © 2014 American Physical Society.

Registro:

Documento: Artículo
Título:Kelvin-Helmholtz versus Hall magnetoshear instability in astrophysical flows
Autor:Gómez, D.O.; Bejarano, C.; Mininni, P.D.
Filiación:Instituto de Astronomía y Física Del Espacio, C.C. 67 Suc. 28, 1428 Buenos Aires, Argentina
Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Palabras clave:Magnetohydrodynamics; Magnetoplasma; Plasma stability; Shear flow; Astrophysical flows; Comparative studies; Ion-cyclotron frequency; Ionized plasmas; Kelvin-Helmholtz; Kelvin-helmholtz instabilities; Low-density plasmas; Three dimensional simulations; Plasma diagnostics
Año:2014
Volumen:89
Número:5
DOI: http://dx.doi.org/10.1103/PhysRevE.89.053105
Título revista:Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Título revista abreviado:Phys. Rev. E Stat. Nonlinear Soft Matter Phys.
ISSN:15393755
CODEN:PLEEE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15393755_v89_n5_p_Gomez

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Citas:

---------- APA ----------
Gómez, D.O., Bejarano, C. & Mininni, P.D. (2014) . Kelvin-Helmholtz versus Hall magnetoshear instability in astrophysical flows. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 89(5).
http://dx.doi.org/10.1103/PhysRevE.89.053105
---------- CHICAGO ----------
Gómez, D.O., Bejarano, C., Mininni, P.D. "Kelvin-Helmholtz versus Hall magnetoshear instability in astrophysical flows" . Physical Review E - Statistical, Nonlinear, and Soft Matter Physics 89, no. 5 (2014).
http://dx.doi.org/10.1103/PhysRevE.89.053105
---------- MLA ----------
Gómez, D.O., Bejarano, C., Mininni, P.D. "Kelvin-Helmholtz versus Hall magnetoshear instability in astrophysical flows" . Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, vol. 89, no. 5, 2014.
http://dx.doi.org/10.1103/PhysRevE.89.053105
---------- VANCOUVER ----------
Gómez, D.O., Bejarano, C., Mininni, P.D. Kelvin-Helmholtz versus Hall magnetoshear instability in astrophysical flows. Phys. Rev. E Stat. Nonlinear Soft Matter Phys. 2014;89(5).
http://dx.doi.org/10.1103/PhysRevE.89.053105