A New Interpretation of the Bipolar HII Region S106 from HCN J = 3 - 2 Mapping Observations

作     者：Sheng-LiQin Jun-JieWang GangZhao MartinMiller 

作者机构：NationalAstronomicalObservatoriesChineseAcademyofSciencesBeijing100012 InstituteofPhysicsKSlnUniversityKoeln50937Germany 

出 版 物：《Chinese Journal of Astronomy and Astrophysics》 (中国天文和天体物理学报（英文版）)

年 卷 期：2005年第5卷第1期

页      面：1-5页

核心收录：

学科分类：0709[理学-地质学] 07[理学] 0708[理学-地球物理学] 070401[理学-天体物理] 0704[理学-天文学] 0825[工学-航空宇航科学与技术] 

基　　金：SupportedbytheNationalNaturalScienceFoundationofChina 

主　　题：ISM: clouds   nebulae: HII region   star: formation   individual: S106 

摘      要：The first mapping observations of the bipolar HII region S106 in HCN J = 3 - 2 line were made by KOSMA submillimeter telescope in April, 2004. The results show that there is a bipolar outflow centered on the high-mass star S106 IRS4 and that the flat structure of molecular cloud core is perpendicular to the axis of the outflow. This image roughly corresponds to the optical image where a dark lane bisects the bipolar HII region. Together with the optical, infrared and radio data, we conclude that the central UC HII region and molecular outflow formed before the two lobes of the bipolar HII region, and that a neutral disk is responsible for the bipolar HII region and the outflow.