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arXiv 1003.0015astro-ph.HE
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古老中子星内部加热机制的对比

Internal Heating of Old Neutron Stars: Contrasting Different Mechanisms

Denis Gonzalez, Andreas Reisenegger, Rodrigo Fernandez

摘要:

毫秒脉冲星J 0437 -4715的热辐射不能用没有加热机制的中子星的标准冷却模型来解释。我们研究了三种由脉冲星的旋转制动控制的加热机制:固体地壳的破裂,超流涡旋蠕变和非平衡反应(“旋转化学加热”)。我们发现地壳开裂机制不会产生可检测到的加热。考虑到加热机制对自旋下降参数的依赖性,这导致不同的类星体的温度不同,我们研究了两种类型的类星体的热演化:年轻的,缓慢旋转的“经典”类星体和老的,快速旋转的毫秒类星体(MSP)。我们发现,旋转化学加热和涡蠕动机制可以是重要的经典的微扰和MSP。

英文摘要:

The thermal emission detected from the millisecond pulsar J0437-4715 is not explained by standard cooling models of neutron stars without a heating mechanism. We investigated three heating mechanisms controlled by the rotational braking of the pulsar: breaking of the solid crust, superfluid vortex creep, and non-equilibrium reactions ('rotochemical heating'). We find that the crust cracking mechanism does not produce detectable heating. Given the dependence of the heating mechanisms on spin-down parameters, which leads to different temperatures for different pulsars, we study the thermal evolution for two types of pulsars: young, slowly rotating 'classical' pulsars and old, fast rotating millisecond pulsars (MSPs). We find that the rotochemical heating and vortex creep mechanism can be important both for classical pulsars and MSPs.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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