激变变星RW Sextantis的反常吸积盘
The anomalous accretion disk of the Cataclysmic Variable RW Sextantis
摘要：
通过$χ_ν^2$分析建立的覆盖900 nm ~至3000 nm ~波长范围的合成光谱与RW Sextantis的合并观察光谱准确拟合。到系统的两个单独校准的距离在绝对通量的基础上建立合成光谱比较，但具有两个替代的缩放因子，最终模型需要$\dot{M}$的替代值。基于对一系列$\dot{M}$值的比较，观察到的光谱不符合标准模型。不是径向温度分布的表达式中的指数0.25，而是接近0.125的值产生具有与组合光谱的精确拟合的合成光谱。对时间序列$FUSE$谱的研究表明，数据不支持所提出的翘曲或倾斜盘;另一种建议是，所观察到的非轴对称风是由与质量转移流碎片的相互作用引起的。
英文摘要：
Synthetic spectra covering the wavelength range 900Å~to 3000Å~provide an accurate fit, established by a $χ_ν^2$ analysis, to a combined observed spectrum of RW Sextantis. Two separately calibrated distances to the system establish the synthetic spectrum comparison on an absolute flux basis but with two alternative scaling factors, requiring alternative values of $\dot{M}$ for final models. Based on comparisons for a range of $\dot{M}$ values, the observed spectrum does not follow the standard model. Rather than the exponent 0.25 in the expression for the radial temperature profile, a value close to 0.125 produces a synthetic spectrum with an accurate fit to the combined spectrum. A study of time-series $FUSE$ spectra shows that a proposed warped or tilted disk is not supported by the data; an alternative proposal is that an observed non-axisymmetric wind results from an interaction with the mass transfer stream debris.
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