论文标题

一种用于积聚中子星的统一光谱模型

A Unified Spectral Model for Accreting Neutron Stars

论文作者

Bhattacharjee, Ayan, Chakrabarti, Sandip K.

论文摘要

最近的研究表明,在到达恒星表面之前,积聚围绕弱磁性中子恒星经历了多个冲击,这有助于在X射线中观察到的光谱和时机变化。在这里,我们首次报告了基于两个组成型对流流范式的统一震动积聚流的统一模型的光谱特性。我们将理论结果与Z和Atoll源的X射线光谱特征进行比较。我们还符合SCO X-1和4U 1705-44的RXTE/PCA光谱,以显示该新模型的潜在应用。

Recent studies show that accretion flows around weakly magnetic Neutron Stars undergo multiple shocks, before reaching the surface of the star, which contribute to the spectral and timing variabilities observed in the X-Rays. Here, we report, for the first time, the spectral properties of a unified model of shocked accretion flows around Neutron Stars, based on the Two-Component Advective Flow paradigm. We compare our theoretical results with the X-Ray spectral features of Z and Atoll sources, across different states. We also fit RXTE/PCA spectra of Sco X-1 and 4U 1705-44 to show the potential application of this new model.

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