Discovery of an Optical Jet in the Rosette Nebula: Rosette HH2
We report on the discovery of an optical jet - Rosette HH2 - in the Rosette Nebula. The jet system bears unique features for residing at the center of a giant HII region, and its energy source is visible with apparently very low extinction along the line of sight. Unlike most other Herbig-Haro jets, this jet indicates a high-excitation origin, and its extended portion shows a seemingly intact structure,instead of normally a shocked working surface, which is attributed to photoablation.
作 者： Jin-Zeng Li 作者单位： National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 刊 名： 天体物理学报(英文版) ISTIC SCI 英文刊名： CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 年，卷(期)： 2003 3(6) 分类号： P14 关键词： stars: formation - stars: pre-main sequence - Herbig-Haro objects- ISM: jets and outflows