Convective instability of a gas sphere

Details Convective instability of a gas sphere Convective instability of a gas sphere

Aug 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977zhpmr..26..165z&link_type=abstract

(ZHETF Pis'ma v Redaktsiiu, vol. 26, Aug. 5, 1977, p. 165-168.) JETP Letters, vol. 26, Aug. 5, 1977, p. 155-158. Translation.

Astronomy and Astrophysics

Astrophysics

Astrophysics, Convective Flow, Magnetohydrodynamic Stability, Plasma Cylinders, Stellar Models, Helical Flow, Kinematics, Perturbation Theory, Stellar Luminosity, Two Dimensional Flow

Scientific paper

Convective instability in a star, resulting in increases in luminosity by many orders of magnitude, is modeled using nonlinear helical MHD instability in a plasma cylinder. The two-dimensional problem is analyzed numerically, taking both initial velocity perturbations and ideal gas motions into account. The internal plasma layers were found to move to the surface of the cylinder. In other words, the plasma was turned inside out.

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