On a possible mechanism of low surface magnetic field structure of quark stars |
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Authors: | Nandini Nag Sutapa Ghosh Roni Saha Somenath Chakrabarty |
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Institution: | (1) Department of Physics, Visva-Bharati, Santiniketan, 731 235, India |
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Abstract: | Following some of the recent articles on hole super-conductivity and related phenomena by Hirsch (Phys. Lett. A 134:451, 1989; Phys. Rev. B 68:184502, 2003a; Phys. Rev. B 71:184521, 2005a and Phys. Lett. A 345:453, 2005b) a simple model is proposed to explain the observed low surface magnetic field of the expected quark stars. It is argued
that the diamagnetic moments of the electrons circulating in the electro-sphere induce a magnetic field, which forces the
existing quark star magnetic flux density to become dilute. For the sake of completeness, we have also included the analyses
of instability at the normal-super-conducting interface due to excess accumulation of magnetic flux lines. The instability
at the interface has also been studied numerically.
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Keywords: | Quark star Magnetic field Superconductivity Mullins-Sekerka instability Hole theory Magnetic circuit |
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