Rotochemical Heating in Millisecond Pulsars. Formalism and Non-superfluid case
天体物理学
2011-07-19 v1
摘要
旋转化学加热源于因旋转减速压缩导致的β平衡偏离。在旋转中子星中,主要后果是该星系最终到达准平衡状态,其中热子辐射亮度仅取决于当前的旋转减速功率,而该功率可直接被测量。只有在毫秒脉冲星中,旋转减速功率才能维持足够长的时间,以便达到并维持该准平衡状态,从而产生显著的亮度。我们对该加热机制对毫秒脉冲星热力学演化的影响进行了广泛研究, developing a general formalism in the slow-rotation approximation of general relativity that takes the spatial structure of the star fully into account, and using a sample of realistic equations of state to solve the non-superfluid case numerically. 我们显示几乎所有被观测到的毫秒脉冲星很可能处于准平衡状态。我们对 PSR J0437-4715 的准平衡温度进行了预测,其值仅低于观测推断值约 20%。考虑超导性后,预测值应进一步提高。
引用
@article{arxiv.astro-ph/0502116,
title = {Rotochemical Heating in Millisecond Pulsars. Formalism and Non-superfluid case},
author = {Rodrigo Fernández and Andreas Reisenegger},
journal= {arXiv preprint arXiv:astro-ph/0502116},
year = {2011}
}
备注
34 pages, 8 figures, AASTeX. Accepted for publication in ApJ