论文标题
高质量恒星形成区域中的氘化分子
Deuterated molecules in regions of high-mass star formation
论文作者
论文摘要
我们介绍了我们在高质量星形成区域的研究研究结果(DCN,DNC,DCO $^+$,n $ _2 $ _2 $ _2 $ d $^+$和NH $ _2 $ d),其中包括对这些区域的调查,其中包括20-M Onsala射程和各种物体中的20-M Onsala射程和100-MPIF和100-MPIF和100-MPIF的对象。这些对象中的申请度达到$ \ sim $ 10 $^{ - 2} $。我们讨论了其对气体温度和速度分散体的依赖性,以及氘化分子的空间分布。我们表明,H $^{13} $ cn/hn $^{13} $ c强度比可能是气体动力学温度和估计值密度的很好的指标。
We present the results of our studies of deuterated molecules (DCN, DNC, DCO$^+$, N$_2$D$^+$ and NH$_2$D) in regions of high-mass star formation, which include a survey of such regions with the 20-m Onsala radio telescope and mapping of several objects in various lines with the 30-m IRAM and 100-m MPIfR radio telescopes. The deuteration degree reaches $\sim$10$^{-2}$ in these objects. We discuss its dependencies on the gas temperature and velocity dispersion, as well as spatial distributions of deuterated molecules. We show that the H$^{13}$CN/HN$^{13}$C intensity ratio may be a good indicator of the gas kinetic temperature and estimate densities of the investigated objects.