Prolate stars due to meridional flows

Prolate stars due to meridional flows

We have shown analytically that shapes of incompressible stars could be prolate if appropriate meridional flows exist. Although this result is strictly valid only if either the meridional flow or the rotation is absent and the vorticity is associated uniformly with meridional flow, this implies that...

Full description

Saved in:
Bibliographic Details
Published in:Monthly notices of the Royal Astronomical Society. Letters Vol. 438; no. 1; pp. L61 - L65
Main Authors: Fujisawa, Kotaro, Eriguchi, Yoshiharu
Format: Journal Article
Language:English
Published: Oxford University Press 01-02-2014
Subjects:
stars: rotation
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We have shown analytically that shapes of incompressible stars could be prolate if appropriate meridional flows exist. Although this result is strictly valid only if either the meridional flow or the rotation is absent and the vorticity is associated uniformly with meridional flow, this implies that perpendicular forces against centrifugal and/or magnetic forces might play important roles within stars. A consequence of the presence of meridional flows might be to decrease stellar oblateness due to centrifugal and/or magnetic fields.
ISSN:1745-3925
1745-3933
DOI:10.1093/mnrasl/slt159