X射线昏暗孤立中子星的偏振热辐射：RX J1856 .5-3754的情况
Polarized thermal emission from X-ray Dim Isolated Neutron Stars: the case of RX J1856.5-3754
摘要：
从孤立的冷却的中子星观测到的热辐射的偏振特性取决于表面的发射过程和围绕恒星的磁化真空的影响。本文以X射线暗孤立中子星RX J1856.5-3754为代表，研究了X射线暗孤立中子星的偏振热辐射。在这些来源的恒星最外层的物理条件仍然是有争议的，所以我们认为从磁化的大气和凝聚的表面，占真空极化的辐射在恒星磁层传播的影响发射。我们已经发现，对于一个显着的范围内的观察几何形状，在光学和X射线波长的相位平均偏振分数和相位平均偏振角的测量，使我们能够确定这个中子星是否有一个大气或凝聚的表面。因此，我们的研究结果可能是相关的软X射线偏振计的未来发展。
英文摘要：
The observed polarization properties of thermal radiation from isolated, cooling neutron stars depend on both the emission processes at the surface and the effects of the magnetized vacuum which surrounds the star. Here we investigate the polarized thermal emission from X-ray Dim Isolated Neutron Stars, taking RX J1856.5-3754 as a representative case. The physical conditions of the star outermost layers in these sources is still debated, and so we consider emission from a magnetized atmosphere and a condensed surface, accounting for the effects of vacuum polarization as the radiation propagates in the star magnetosphere. We have found that, for a significant range of viewing geometries, measurement of the phase-averaged polarization fraction and phase-averaged polarization angle at both optical and X-ray wavelengths allow us to determine whether this neutron star has an atmosphere or a condensed surface. Our results may therefore be relevant in view of future developments of soft X-ray polarimeters.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
