论文标题
Nova V659 SCT的光谱的时间序列
Time series of optical spectra of Nova V659 Sct
论文作者
论文摘要
借助我们的机器人1.2 m Tigre望远镜，我们能够在其爆发的不同阶段中获得八个Nova V659 SCT中间分辨率（r = 20,000）的光谱。我们列出了Nova Spectra中发现的线条清单。最常见的功能是H I，O I，Na I，Fe II和Ca II。在研究强特征的光谱演化时，我们发现吸收特征在消失之前移至较高的膨胀速度，并且发射特征显示出（不同的）不对称性。借助中间光谱分辨率，我们确定并分析了光谱中存在的星际培养基吸收特征。我们检测到Na I和Ca II的原子吸收特征。钠D线显示出更复杂的子结构，其三个主要吸收特征的速度约为-10、30和85 km/s。我们确定了Nova V659 SCT光谱中的几个DIB，并确定了它们的速度和等效宽度。
With our robotic 1.2 m TIGRE telescope, we were able to obtain eight optical spectra with intermediate resolution (R = 20,000) of the Nova V659 Sct during different phases of its outburst. We present a list of the lines found in the Nova spectra. The most common features are H I, O I, Na I, Fe II and Ca II. Studying the spectral evolution of the strong features we found that the absorption features move to higher expansion velocities before disappearing and the emission features show (different) asymmetries. Thanks to the intermediate spectral resolution we identified and analysed the interstellar medium absorption features present in the spectra. We detected atomic absorption features of Na I and Ca II. The sodium D lines show more complex substructures with three main absorption features at around a velocity of -10, 30 and 85 km/s. We identified several DIBs in the Nova V659 Sct spectra and determined their velocities and equivalent widths.
