Discovery of an Optical Jet in the R

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  

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