| Original Articles |
|
|
|
|
High-Velocity H2O Masers Associated Massive Star Formation
Regions |
| XU Ye1;JIANG Dong-Rong1;ZHENG Xing-Wu2;GU Min-Feng1;YU Zhi-Yao1;PEI Chun-Chuan3 |
| 1Shanghai Astronomical Observatory, National Astronomical Observatories, Chinese Academy of Sciences, Shanghai 200030
2Department of Astronomy, Nanjing University, Nanjing 210093
3Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008 |
|
| Cite this article: |
|
XU Ye, JIANG Dong-Rong, ZHENG Xing-Wu et al 2001 Chin. Phys. Lett. 18 1663-1665 |
|
|
|
|
Abstract We report on the results of 12CO (1-0) emission associated with H2O masers and massive star formation regions to identify high-velocity H2O masers. Several masers have a large blue-shift, even up to 120km.s-1, with respect to the CO peak, but no large redshifted maser appears. This result suggests that high-velocity H2O masers can most probably occur in high mass star-forming regions and quite a number of masers stem from the amplifications of a background source, which may enable those undetectable weak masers to become to an observable level.
|
| Keywords:
98.38.Er
98.38.Jw
98.35.Ac
|
|
|
Published: 01 December 2001
|
|
| PACS: |
98.38.Er
|
(Interstellar masers)
|
| |
98.38.Jw
|
(Infrared emission)
|
| |
98.35.Ac
|
(Origin, formation, evolution, age, and star formation)
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
