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Analytical Modeling of Radial Velocity Curves of Hα Emission from WW And

机译:WW及其HAα发射径向速度曲线的分析模型

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Radial Velocity (RV) plots of emission lines, including H_α, from non-magnetic Cataclysmic Variables (CV), are usually fit with a sin curve. This sin fit sometimes does not prove to be the best fit for some non-magnetic CVs with accretion discs. An analytical model is created based on our 3D Smoothed Particle Hydrodynamic (SPH) numerical code in order to simulate the RV curves. The observational target is WW And, a long period non-magnetic CV. The model takes into account disc ellipticity and inclination angle that provide good non-sinusoidal fits to the observed RV data.
机译:从非磁性灾难性变量(CV)的辐射线(包括H_α)的径向速度(RV)图通常适合于SIN曲线。这种SIN FIT有时不会被证明是具有带有吸收光盘的一些非磁性CV的最适合。基于我们的3D平滑粒子流体动力学(SPH)数值代码来创建分析模型,以模拟RV曲线。观察目标是WW,长期的非磁性CV。该模型考虑了磁盘椭圆形和倾斜角,为观察到的RV数据提供良好的非正弦拟合。

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