Dynamo in Protostar
Solar and Stellar Astrophysics
2015-06-15 v1 Plasma Physics
Abstract
In this paper, we estimate the magnetic Reynolds number of a typical protostar before and after deuterium burning, and claim for the existence of dynamo process in both the phases, because the magnetic Reynolds number of the protostar far exceeds the critical magnetic Reynolds number for dynamo action. Using the equipartition of kinetic and magnetic energies, we estimate the steady-state magnetic field of the protostar to be of the order of kilo-gauss, which is in good agreement with observations.
Cite
@article{arxiv.1304.6808,
title = {Dynamo in Protostar},
author = {Mahendra K. Verma and Bidya Binay Karak and Rohit Kumar},
journal= {arXiv preprint arXiv:1304.6808},
year = {2015}
}
Comments
5 pages