论文标题
部分可观测时空混沌系统的无模型预测
Polarization properties of weakly magnetized Neutron Stars in Low Mass X-ray Binaries
论文作者
论文摘要
像IXPE这样的X射线极化仪，将能够首次测量低质量X射线二进制文件中积聚，弱磁性中子星的极化特性。在这项工作中，我们介绍了预期的X射线极化信号的模拟，包括电晕本身不同几何形状的冠状发射，即吸积盘上方的平板和中子恒星周围的球形壳。模拟使用完全相对论的蒙特卡洛代码和尚，能够计算中子恒星，盘和电晕的各种物理输入参数的X射线极化度和角度。不同的冠状几何形状会产生显着不同的X射线极化特性，因此可用于约束系统的几何形状。
X-ray polarimetry missions like IXPE will be able to measure for the first time the polarization properties of accreting, weakly magnetized neutron stars in Low Mass X-ray Binaries. In this work we present simulations of the expected X-ray polarized signal including the coronal emission for different geometries of the corona itself, i.e. a slab above the accretion disc and a spherical shell around the neutron star. The simulations are performed with the fully relativistic Monte Carlo code monk capable of computing the X-ray polarization degree and angle for various physical input parameters of the neutron star, disc and corona. Different coronal geometries result in significantly different X-ray polarization properties, which can therefore be used to constrain the geometry of the systems.
