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Advances in High Energy Physics
Volume 2012 (2012), Article ID 309304, 6 pages
http://dx.doi.org/10.1155/2012/309304
Research Article

On Possible Reduction of Equilibrium Radius of a Neutron Star Influenced by Superstrong Magnetic Field

Moscow State Industrial University, Faculty of Applied Mathematics and the Technical Physics, 115280, Russia

Received 16 September 2011; Revised 19 December 2011; Accepted 19 December 2011

Academic Editor: C. Q. Geng

Copyright © 2012 Vladimir V. Skobelev. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Necessary condition for 𝛽 -decay suppression of a neutron in degenerate magnetized electron gas is formulated. Based on this, it is shown that, in superstrong magnetic field, equilibrium radius of a neutron star is approximately several times smaller than without the field influence. Therefore, we can make a prediction that in short-period pulsars, such fields can be observed. In fact, possible existence of new class of stellar objects is noted, the objects with superstrong magnetic field and supersmall radius about 1 km which we named minimagnetars. They can be detected by gravitational red shift of their radiation.