Origin of Strong Magnetic Fields of Magnetars
Qiu-he Peng, Jie Zhang, Men-quan Liu, Chich-gang Chou
TL;DR
This paper proposes that the strong magnetic fields of magnetars originate from the induced magnetic moments of 3P2 neutron Cooper pairs in the anisotropic neutron superfluid inside neutron stars, providing a new explanation for their magnetic strength.
Contribution
It introduces a novel mechanism linking neutron superfluid properties to magnetar magnetic fields, emphasizing the role of 3P2 neutron Cooper pairs.
Findings
Magnetic dipoles tend to align under background magnetic fields.
Strong magnetic fields may originate from induced magnetic moments of neutron Cooper pairs.
Provides a new explanation for the magnetic field strength of magnetars.
Abstract
Since there is 3P2 neutron superfluid in neutron star interior, it can be treated as a system of magnetic dipoles. Under the presence of background magnetic field, the magnetic dipoles tend to align in the same direction. When the temperature is lower than 10**7K, the strong magnetic fields of the magnetars may originate from the induced magnetic moment of the 3P2 neutron Cooper pairs in the anisotropic neutron superfluid. And this gives a convenient explanation of the strong magnetic field of magnetars.
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Taxonomy
TopicsPulsars and Gravitational Waves Research · Geophysics and Gravity Measurements