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Astron. Astrophys. 352, 211-216 (1999)

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Deformation of relativistic magnetized stars

K. Konno, T. Obata and Y. Kojima

Department of Physics, Hiroshima University, Higashi-Hiroshima 739-8526, Japan

Received 9 August 1999 / Accepted 4 October 1999

Abstract

We formulate deformation of relativistic stars due to the magnetic stress, considering the magnetic fields to be perturbations from spherical stars. The ellipticity for the dipole magnetic field is calculated for some stellar models. We have found that the ellipticity becomes large with increase of a relativistic factor for the models with the same energy ratio of the magnetic energy to the gravitational energy.

Key words: relativity – stars: magnetic fields – stars: neutron – methods: analytical

Send offprint requests to: K. Konno

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© European Southern Observatory (ESO) 1999

Online publication: November 23, 1999
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