Differentiating Neutron Star Models by X-Ray Polarimetry
由 X 光检查测极化区分中子星模型作者机构:School of Physics and State Key Laboratory of Nuclear Physics and TechnologyPeking UniversityBeijing 100871 Department of Engineering Physics and Center for AstrophysicsTsinghua UniversityBeijing 100084
出 版 物:《Chinese Physics Letters》 (中国物理快报(英文版))
年 卷 期:2013年第30卷第5期
页 面:191-194页
核心收录:
学科分类:07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学]
基 金:the National Basic Research Program of China under Grant Nos 2012CB821800 and 2009CB824800 the National Natural Science Foundation of China under Grant Nos 11225314,10935001 and 10973002
摘 要:The nature of pulsars is still unknown because of the non-perturbative effects of the fundamental strong interaction,so various models of pulsar inner structures are suggested,either for conventional neutron stars or quark ***,a quark-cluster matter state is conjectured for cold matter at supranuclear density,and as a result pulsars can be quark-cluster *** understanding the different manifestations,the most important issue is to find an effective way to observationally differentiate these models.X-ray polarimetry plays an important role *** thermal x-ray polarization of quark/quark-cluster stars is focused on,and while the thermal x-ray linear polarization percentage is typically higher than~10%in normal neutron star models,the percentage of quark/quark-cluster stars is almost *** could then be an effective method to identify quark/quark-cluster stars by soft x-ray *** are therefore expecting to detect thermal x-ray polarization in the coming decades.