Is there any relationship between glitches of Crab pulsar and Einstein-de Haas effect?
Is there any relationship between glitches of Crab pulsar and Einstein-de Haas effect?
复制标题
蟹状脉冲星的毛刺和爱因斯坦-德哈斯效应之间有什么关系吗？
DOI：
10.1093/mnras/stz1756
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发表时间：
2019
影响因子：
4.8
通讯作者：
Zhu Q.-H.
中科院分区：
文献类型：
--
作者：
Chang Z.;Zhao Z.-C.;Zhou Y.;Zhu Q.-H.
许多脉冲星表现出突然的旋转跳跃、故障，并叠加到由于辐射持续损失能量而逐渐下降的旋转中。人们提出了很多模型来解释故障。大多数模型与中子星的层结构有关。我们试图探讨蟹状星云脉冲星的毛刺与爱因斯坦-德哈斯效应之间的关系。在这种情况下，具有Skyrme型相互作用的中子物质的自旋极化形成宏观自旋角动量，并且Einstein-de哈斯效应-宏观自旋和轨道角动量之间的转移-引起了光子星的毛刺。结果表明，该方案与蟹状星云脉冲星观测到的毛刺和毛刺后弛豫现象是一致的。
Many pulsars show sudden rotation jumps, glitches, superimposed to the gradual rotation down due to the continued loss of energy by radiation. A lot of models have been proposed to explain glitches. Most of the models are associated with layer structure of neutron stars. We try to investigate possibility of relationship between glitches of Crab pulsar and Einstein-de Haas effect. In the scenarios, spin polarization of neutron matter with Skyrme-type interactions forms a macroscopic spin angular momentum, and the Einstein-de Haas effect – transfer between the macroscopic spin and orbit angular momentum – gives rise to glitches of pulsars. It is shown that the scenario is in agreement with the observations of Crab pulsar on glitches and post-glitches relaxation.