Rai Choudhuri, Arnab ; Konar, Sushan (2004) Why do millisecond pulsars have weaker magnetic fields compared to ordinary pulsars? Current Science, 86 (3). pp. 444-446. ISSN 0011-3891
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Official URL: http://www.ias.ac.in/currsci/feb102004/444.pdf
Abstract
Millisecond pulsars, with magnetic fields weaker by three to four orders compared to those of ordinary pulsars, are presumed to be neutron stars spun up by binary accretion. We expect the magnetic field to get screened by the accreted material. Our simulation of this screening mechanism shows that the field decreases by a purely geometric factor sin−7/2 θP,i before freezing to an asymptotic value, where θP,i is the initial angular width of the polar cap. If θP,i lies in the range 5-10°, then the magnetic field diminution factor turns out to be ~ 103-104, in conformity with observational data.
Item Type: | Article |
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Source: | Copyright of this article belongs to Current Science Association. |
ID Code: | 66569 |
Deposited On: | 24 Oct 2011 08:19 |
Last Modified: | 18 May 2016 14:03 |
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