中子星的热演化和磁衰减

本文研究了中子星的热演化、自转演化和磁场演化的相互影响．考虑了一个自洽模型：中子星因磁偶极辐射而自转减慢，在内部产生某些加热过程，中子星磁场通过壳层的欧姆耗散来衰减．结果表明，磁场衰减提高了加热过程的重要性；相反，加热效应减慢了磁衰减．因此可以得出，中子星的热、自转和磁场也许不是独立演化的．不仅如此，这些演化与初始条件有关，因此，人们也许可以从射电和Ｘ射线观测对脉冲星年龄、初始磁场和周期给出某些限制．

Thermal Evolution and Magnetic Field Decay of Neutron Stars

The interaction among the thermal, rotational and magnetic evolution of neutron stars is studied in this paper. To do this, we consider such a self consistent model: neutron stars spin down due to magnetic dipole radiation; this may lead to some heating effects in their interiors; their magnetic fields decay via crustal ohmic dissipation.We show that the field decay enhances the importance of these heating processes; conversely, the heating effects slow down the field decay.Therefore it is inferred that, the thermal, rotational and magnetic field evolution of neutron stars could be interdependent on one another. In addition, the evolution is somehow related with the initial conditions. Thus, the age, initial magnetic field and initial spin period of a pulsar might be constrained through radio and X ray observations.