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Dynamo in protostars

Verma, Mahendra K and Karak, Bidya Binay and Kumar, Rohit (2013) Dynamo in protostars. In: PRAMANA-JOURNAL OF PHYSICS, 81 (6). pp. 1037-1043.

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Official URL: http://dx.doi.org/10.1007/s12043-013-0628-y


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 kilogauss, which is in good agreement with observations.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to the INDIAN ACAD SCIENCES, INDIA
Keywords: Protostar; magnetic field generation; dynamo
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Depositing User: Id for Latest eprints
Date Deposited: 31 Jan 2014 05:18
Last Modified: 31 Jan 2014 05:18
URI: http://eprints.iisc.ac.in/id/eprint/48274

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