论文标题
中子 - 镜子中子混合和中子星星
Neutron - mirror neutron mixing and neutron stars
论文作者
论文摘要
中子$ n $在镜像中子中的振荡$ n'$，它们的大量堕落伙伴来自黑镜领域，可能对中子恒星具有有趣的影响：普通的中子恒星可以逐渐转变为在镜面深色物质的一部分组成的混合恒星中。混合恒星可以作为普通中子星的双伴侣检测到：即，可以存在具有相同质量但具有不同半径的紧凑型恒星。对于给定的状态方程（普通和镜面组件之间相同），混合恒星的质量和半径取决于其内部中普通成分和镜面成分之间的比例，这又取决于其年龄。 If $50 \% - 50\%$ proportion between two fractions can be reached asymptotically in time, then the maximum mass of such "maximally mixed stars" should be $\sqrt2$ times smaller than that of ordinary neutron star while the stars exceeding a critical mass value $M^{\rm max}_{NS}/\sqrt2$ should collapse in black holes after certain time.我们评估了演变时间，并讨论了$ n-n'$转变对脉冲星观测的含义，以及中子恒星合并和相关电磁信号的重力波。
The oscillation of neutrons $n$ into mirror neutrons $n'$, their mass degenerate partners from dark mirror sector, can have interesting implications for neutron stars: an ordinary neutron star could gradually transform into a mixed star consisting in part of mirror dark matter. Mixed stars can be detectable as twin partners of ordinary neutron stars: namely, there can exist compact stars with the same masses but having different radii. For a given equation of state (identical between the ordinary and mirror components), the mass and radius of a mixed star depend on the proportion between the ordinary and mirror components in its interior which in turn depends on its age. If $50 \% - 50\%$ proportion between two fractions can be reached asymptotically in time, then the maximum mass of such "maximally mixed stars" should be $\sqrt2$ times smaller than that of ordinary neutron star while the stars exceeding a critical mass value $M^{\rm max}_{NS}/\sqrt2$ should collapse in black holes after certain time. We evaluate the evolution time and discuss the implications of $n-n'$ transition for the pulsar observations as well as for the gravitational waves from the neutron star mergers and associated electromagnetic signals.
