论文标题
电子捕获的发作和磁铁中的浅加热
Onset of Electron Captures and Shallow Heating in Magnetars
论文作者
论文摘要
在磁场中磁场衰减的磁性压力损失可能会触发细胞核在恒星外壳的浅层层中捕获的放热电子。考虑到电子运动的Landau-Rabi量化，获得了阈值密度和压力的非常准确的分析公式，以及可能释放的最大热量。这些公式适用于任意磁场强度，从弱量化机制到最极端的情况，在这些情况下，电子都局限于最低水平。基于补充布鲁塞尔 - 蒙特利尔模型HFB-24的预测的实验核数据，还提供了数值结果。已经采用了相同的核模型来计算磁铁所有区域的状态方程。
The loss of magnetic pressure accompanying the decay of the magnetic field in a magnetar may trigger exothermic electron captures by nuclei in the shallow layers of the stellar crust. Very accurate analytical formulas are obtained for the threshold density and pressure, as well as for the maximum amount of heat that can be possibly released, taking into account the Landau-Rabi quantization of electron motion. These formulas are valid for arbitrary magnetic field strengths, from the weakly quantizing regime to the most extreme situation in which electrons are all confined to the lowest level. Numerical results are also presented based on experimental nuclear data supplemented with predictions from the Brussels-Montreal model HFB-24. This same nuclear model has been already employed to calculate the equation of state in all regions of magnetars.
