论文标题
Lamost MRS-N观测值W80区域
LAMOST MRS-N Observations of the W80 Region
论文作者
论文摘要
通过使用中等分辨率光谱调查（MRS-N）的数据以及大天空区域多对象纤维光谱望远镜（Lamost）的中等分辨率光谱调查（MRS-N），对W80区域的光谱观测和分析进行了。在覆盖W80复合物的20平方度视野（FOV）中，总共获得了2982个高质量的Nebular光谱，并且首次建立了最大的光谱数据样本。用lamost MRS的高光谱分辨率测量的相对强度，径向速度（RVS）和全宽度，以H $α$ $ $ $ $ $ $ $ $ $ $ $6563Å进行测量[\ ion {s} {ii}] $λ$λ$λ$6716Å，6731Å\发射线。在整个W80区域的视野中，发现最强的线排放与明亮的星云，NGC 7000，IC 5070和LBN 391以及弱线排放以及弱线排放量是一致的，在中部地区，没有宽带光学观察结果检测到明亮的星云。对W80区域的大规模光谱观测揭示了RVS和FWHM的系统空间变化以及几种独特的结构特征。 NGC 7000的东部的“弯曲功能”，并且检测到LBN 391西部的“喷射功能”，显示为较大的径向速度。在NGC 7000的东部确定了一个“更宽的FWHM区域”。[\ ion {s} {ii}] / h $α$比率的变化显示了从NGC 7000地区向西南到东北地区的梯度，并表现出围绕“ W80 bubble'irove of o-y-type ny-type n o-y-type n o-y-type n o-y-type n o-y-type n o-y-type n o-y-type，保证进一步的光谱和多频段观察结果可以详细研究结构特征。
The spectral observations and analysis for the W80 Region are presented by using the data of Medium-Resolution Spectroscopic Survey of Nebulae (MRS-N) with the Large Sky Area Multi-Object Fiber Spectroscopy Telescope (LAMOST). A total of 2982 high-quality nebular spectra have been obtained in the 20 square degree field of view (FoV) which covers the W80 complex, and the largest sample of spectral data have been established for the first time. The relative intensities, radial velocities (RVs), and Full Widths at Half Maximum (FWHMs) are measured with the high spectral resolution of LAMOST MRS, for H$α$ $λ$ 6563 Å, [\ion{N}{ii}] $λ$$λ$ 6548 Å, 6584 Å\ , and [\ion{S}{ii}] $λ$$λ$ 6716 Å, 6731 Å\ emission lines. In the field of view of whole W80 Region, the strongest line emissions are found to be consistent with the bright nebulae, NGC 7000, IC 5070, and LBN 391, and weak line emissions also truly exist in the Middle Region, where no bright nebulae are detected by the wide-band optical observations. The large-scale spectral observations to the W80 Region reveal the systematic spatial variations of RVs and FWHMs, and several unique structural features. A 'curved feature' to the east of the NGC 7000, and a 'jet feature' to the west of the LBN 391 are detected to be showing with larger radial velocities. A 'wider FWHM region' is identified in the eastern part of the NGC 7000. The variations of [\ion{S}{ii}] / H$α$ ratios display a gradient from southwest to northeast in the NGC 7000 region, and manifest a ring shape around the 'W80 bubble' ionized by an O-type star in the L935. Further spectral and multi-band observations are guaranteed to investigate in detail the structural features.
