论文标题
中子隧道:中子恒星,磁铁和中子星合并爆炸现象的新机制
Neutron tunneling: A new mechanism to power explosive phenomena in neutron stars, magnetars, and neutron star mergers
论文作者
论文摘要
中子恒星壳中遇到的非均匀密集物质中的富含中子的核之间的中子隧道可以在短时间内释放巨大的能量,从而在中子恒星中为爆炸性现象供电。在这项工作中,我们阐明了当振荡或灾难性事件增加环境密度时,该过程可能发生在中子星的外部区域。我们使用时间依赖性的Hartree-Bogoliubov形式主义来确定中子扩散率,并发现大量能量可以迅速释放。研究了核结合,两体相互作用和配对在中子扩散时间的作用。我们考虑一个一维量子扩散模型,并扩展了分析以研究三维中扩散的影响。我们发现,这些新颖的中子转移反应可以以$ \ simeq 10^{40} -10^{44} $ ergs在适当条件下产生能量。
Neutron tunneling between neutron-rich nuclei in inhomogeneous dense matter encountered in neutron star crusts can release enormous energy on a short-timescale to power explosive phenomena in neutron stars. In this work we clarify aspects of this process that can occur in the outer regions of neutron stars when oscillations or cataclysmic events increase the ambient density. We use a time-dependent Hartree-Fock-Bogoliubov formalism to determine the rate of neutron diffusion and find that large amounts of energy can be released rapidly. The role of nuclear binding, the two-body interaction and pairing, on the neutron diffusion times is investigated. We consider a one-dimensional quantum diffusion model and extend our analysis to study the impact of diffusion in three-dimensions. We find that these novel neutron transfer reactions can generate energy at the amount of $\simeq 10^{40}-10^{44}$ ergs under suitable conditions.