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24 April 2024

» arxiv » astro-ph/9911085

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Evolution of Multipolar Magnetic Fields in Isolated Neutron Stars and its effect on Pulsar Radio Emission
D. Mitra ; S. Konar ; D. Bhattacharya ; A. V. Hoensbroech ; J. H. Seiradakis ; R. Wielebinski ;
Date:	5 Nov 1999
Subject:	astro-ph
Abstract:	The evolution of the multipolar structure of the magnetic field of isolated neutron stars is studied assuming the currents to be confined to the crust. Lower orders ($le 25$) of multipole are seen to evolve in a manner similar to the dipole suggesting little or no evolution of the expected pulse shape. We also study the multifrequency polarization position angle traverse of PSR B0329+54 and find a significant frequency dependence above 2.7 GHz. We interpret this as an evidence of strong multipolar magnetic field present in the radio emission region.
Source:	arXiv, astro-ph/9911085
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