Nonlinear pseudo-radial oscillation of a rotating magnetic star

Details Nonlinear pseudo-radial oscillation of a rotating magnetic star Nonlinear pseudo-radial oscillation of a rotating magnetic star

Sep 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ap%26ss.114..295d&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 114, no. 2, Sept. 1985, p. 295-302.

Statistics

Computation

Computational Astrophysics, Magnetic Stars, Stellar Oscillations, Stellar Rotation, Vibration Mode, Coupling, Nonlinearity, Radial Distribution, Stellar Magnetic Fields

Scientific paper

The nonlinear pseudo-radial mode of oscillation of a rotating magnetic star is studied. It is shown that for a general rotational field, the coupling between magnetic field and rotation tends to reduce the average rotational energy parameter T. This results in a lowering of the maximum pulsation amplitude qmax, which depends on strength of rotation and magnetic field. The configuration tends, therefore, to a new equilibrium state at lower value of qmax. The analytic solution of the pulsation equation for the case of y = 5/3 in the presence of rotation and magnetic field has also been derived.

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