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Constraining the Accretion Flow in Sgr A* by General Relativistic Dynamical and Polarized Radiative Modeling

机译:通用相互相对论动态和极化辐射造型约束SGR A *中的吸收流量

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We briefly summarize the method of simulating Sgr A* polarized sub-mm spectra from the accretion flow and fitting the observed spectrum. The dynamical flow model is based on three-dimensional general relativistic magneto hydrodynamic simulations. Fully self-consistent radiative transfer of polarized cyclo-synchrotron emission is performed. We compile a mean sub-mm spectrum of Sgr A* and fit it with the mean simulated spectra. We estimate the ranges of inclination angle θ=42°-75°, mass accretion rate ?=(1.4-7.0)×10~(?8) M _⊙year~(?1), and electron temperature T_e =(3-4)×10~(10)K at 6M. We discuss multiple caveats in dynamical modeling, which must be resolved to make further progress.
机译:我们简要概述了从增值流模拟SGR A *偏振子MM光谱的方法,并拟合观察到的光谱。动态流动模型基于三维通用相对论磁力模拟。进行完全自一致的偏振环同步辐射发射传递。我们编制一个平均Sub-mm光谱的SGR A *并用平均模拟光谱拟合它。我们估计倾斜角θ= 42°-75°,质量增率θ=(1.4-7.0)×10〜(?8)M_∞year〜(α1),电子温度t_e =(3- 4)×10〜(10)k在6米处。我们在动态建模中讨论多个警告,必须解决,以进一步进步。

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