Prolate stars due to meridional flows
Solar and Stellar Astrophysics
2013-12-11 v1
Abstract
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.
Keywords
Cite
@article{arxiv.1312.2814,
title = {Prolate stars due to meridional flows},
author = {Kotaro Fujisawa and Yoshiharu Eriguchi},
journal= {arXiv preprint arXiv:1312.2814},
year = {2013}
}
Comments
4 pages, 1 figure; published online in MNRAS letter (in press)