Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994ap%26ss.215..111m&link_type=abstract
Astrophysics and Space Science, vol. 215, no. 1, p. 111-130
Astronomy and Astrophysics
Astrophysics
3
Angular Velocity, Gradients, Rotating Matter, Spin Dynamics, Stellar Models, Stellar Rotation, Differences, Fluid Flow, Polytropic Processes, Solar Rotation, Stellar Structure
Scientific paper
In the present paper we have considered the problem of determining the equilibrium structure of differentially rotating stars in which the angular velocity of rotation varies both along the axis of rotation and in directions perpendicular to it. For this purpose, a generalized law of differential rotation of the type omega2=b0 + b1s2 + b2s4 + b3z2 + b4z4 + b5z2s2 (here omega is a nondimensional measure of the angular velocity of a fluid element distant s from the axis of rotation and z from the plane through the center of the star perpendicular to the axis of rotation, and b's are suitably chosen parameters) has been used. Whereas the Kippenhahn and Thomas averaging approach has been used to incorporate the rotational effects in the stellar structure equations, Kopal's results on Roche equipotentials have been used to obtain the explicit form of the stellar structure equations, which incorporate the rotational effects up to second order of smallness in the distortion parameters. The method has been used to compute the equilibrium structure of certain differentially rotating polytropes. Certain differentially rotating models of the Sun have also been computed by using this approach.
Lal Arbind Kumar
Mohan Chander
Singh Vijay P.
No associations
LandOfFree
Equilibrium structure of stars obeying a generalized differential rotation law does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Equilibrium structure of stars obeying a generalized differential rotation law, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Equilibrium structure of stars obeying a generalized differential rotation law will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-884423