论文标题
弥漫性星际频段的中央波长和轮廓形状与中间云的物理参数
Central wavelengths and profile shapes of diffuse interstellar bands vs. physical parameters of intervening clouds
论文作者
论文摘要
本文试图确定中央波长的变化还是漫射星际条带（DIB）的轮廓形状，以及这些变化是否是由半透明云的不同物理参数引起的。 为此，我们使用了通过两条不同的单云看到的两颗星的光谱：HD34078（AE AUR）\＆HD73882使用使用 两种不同的仪器：Mike光谱仪，在Las Campanas天文台用6.5 M麦哲伦望远镜喂食，尺子在偏an天文台上供应8 M Kueyen望远镜。在6196、6203、6376、6379和6614Å相对于众所周知的星际原子和分子线（K {\ sc I}和CH）方面的DIB的波长位移。在4726、4964、4763和4780Å的DIB中似乎不存在上述转变。此外，考虑的轮廓可能显示（在HD34078中）延长红色翅膀。观察到的现象可能与中间云的物理参数有关（分子种类的旋转温度），并且可能有助于识别DIB载体。
This paper tries to establish whether there are variations of the central wavelengths or the profile shapes of diffuse interstellar bands (DIBs) and whether these variations are caused by different physical parameters of translucent clouds. For this purpose we used spectra of two stars seen through two different single clouds: HD34078 (AE Aur) \& HD73882 acquired using two different instruments: the MIKE spectrograph, fed with the 6.5 m Magellan telescope at Las Campanas Observatory, and the UVES, fed with the 8 m Kueyen telescope at the Paranal observatory. The wavelength displacements of the DIBs at 6196, 6203, 6376, 6379 and 6614 Å with respect to the well known interstellar atomic and molecular lines (K{\sc i} and CH) have been measured. The mentioned shift is seemingly absent in the DIBs at 4726, 4964, 4763, and 4780 Å. In addition the considered profiles may show (in HD34078) extended red wings. The observed phenomena are likely related to physical parameters of intervening clouds (rotational temperatures of molecular species) and may help in the identification of the DIB carriers.
