论文标题
FU Orionis型物体的高分辨率光谱监测观测值V960 Mon
High-resolution spectroscopic monitoring observations of FU Orionis-type object, V960 Mon
论文作者
论文摘要
我们介绍了高分辨率（r $ \ ge $ 30,000）光学和近红外光谱监测观测值，该观察结果是Fu Orionis型物体V960 Mon，该物体于2014年11月进行了爆发。自2014年12月以来，我们已经使用Bohyunsan光学梯形光谱仪（BOES）和浸入光栅红外光谱仪（IGRINS）监视了该物体。检测到风，磁盘和流出/喷气机产生的各种功能。随着时间的流逝，风的特征变化，爆发后不断减弱。我们检测到光学和近红外的双峰线轮廓，并且线宽度倾向于随着波长的增加而降低，这表明开普勒磁盘旋转。光学和近红外光谱中的磁盘特征与G型和K型恒星光谱非常吻合，均与核相连，以说明最大的投影盘旋转速度约为40.3 $ \ pm $ 3.8 km S $ s $ s $ s $^{ - 1}} $ 36.3 $ 36.3 $ \ pm $ 3.9 $ 3.9 km $ 3.9 km s $ s $^$^$^$^$} = - 1}。我们还报告了[S II]和H $ _ {2} $发射线的检测，它们是喷气/流出示踪剂，很少在Fuors中找到。
We present the results of high-resolution (R $\ge$ 30,000) optical and near-infrared spectroscopic monitoring observations of a FU Orionis-type object, V960 Mon, which underwent an outburst in 2014 November. We have monitored this object with the Bohyunsan Optical Echelle Spectrograph (BOES) and the Immersion GRating INfrared Spectrograph (IGRINS) since 2014 December. Various features produced by a wind, disk, and outflow/jet were detected. The wind features varied over time and continually weakened after the outburst. We detected double-peaked line profiles in the optical and near-infrared, and the line widths tend to decrease with increasing wavelength, indicative of Keplerian disk rotation. The disk features in the optical and near-infrared spectra fit well with G-type and K-type stellar spectra convolved with a kernel to account for the maximum projected disk rotation velocity of about 40.3$\pm$3.8 km s$^{-1}$ and 36.3$\pm$3.9 km s$^{-1}$, respectively. We also report the detection of [S II] and H$_{2}$ emission lines, which are jet/outflow tracers and rarely found in FUors.
