论文标题

在冷中子星的超流体核心中固定在中子量子的中子量子上的力

Force on a neutron quantised vortex pinned to proton fluxoids in the superfluid core of cold neutron stars

论文作者

Sourie, Aurélien, Chamel, Nicolas

论文摘要

预计冷旋转中子星的超流体和超导核心将由大量的中子量化涡流和质子通量。它们的相互作用是不可避免的,可能具有重要的天体物理意义。在本文中,阐明了固定在液管上的单个涡流上作用的力的各种贡献。通过应用卡特和合作者开发的变异多流体形式主义来得出力的一般表达。固定在棒状体上,由于涡流周围的质子循环,导致了另外的马格努斯型力。因此,固定在中子恒星的核心中可能会对涡流动力学以及恒星的磁反转演化产生巨大影响。

The superfluid and superconducting core of a cold rotating neutron star is expected to be threaded by a tremendous number of neutron quantised vortices and proton fluxoids. Their interactions are unavoidable and may have important astrophysical implications. In this paper, the various contributions to the force acting on a single vortex to which fluxoids are pinned are clarified. The general expression of the force is derived by applying the variational multifluid formalism developed by Carter and collaborators. Pinning to fluxoids leads to an additional Magnus type force due to proton circulation around the vortex. Pinning in the core of a neutron star may thus have a dramatic impact on the vortex dynamics, and therefore on the magneto-rotational evolution of the star.

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