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Dynamo in protostars
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA.
2013 (English)In: Pramana (Bangalore), ISSN 0304-4289, E-ISSN 0973-7111, Vol. 81, no 6, 1037-1043 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2013. Vol. 81, no 6, 1037-1043 p.
Keyword [en]
Dynamo., Magnetic field generation, Protostar
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-139872DOI: 10.1007/s12043-013-0628-yISI: 000328859500011Scopus ID: 2-s2.0-84890344574OAI: oai:DiVA.org:kth-139872DiVA: diva2:690013
Note

QC 20140122

Available from: 2014-01-22 Created: 2014-01-15 Last updated: 2017-12-06Bibliographically approved

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Karak, Bidya Binay
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