1. 北京师范大学物理系, 北京 100875 2. University of California, Berkeley, 42231 Bidwell Road, Hat Creek, CA 96040 3. 北京师范大学天文系, 北京 100875
The Survey and Its Interpretation for Interstellar OH and H2O Masers
LIU Han-peng1,Forster J R2,SUN Jin3
1. Department of Physics, Beijing Normal University, Beijing 100875, China 2. University of California, Berkeley, Hat Creek Radio Observatory, 42231 Bidwell Road, Hat Creek, CA 96040, U.S.A 3. Department of Astronomy, Beijing Normal University, Beijing 100875, China
Abstract：A statistics of sky survey for interstellar H2O and OH masers is presented. These masers can be classified into 3 categories. The total number of sources in each category is of the same order of magnitude, and they can maintain -105 years. But there are fewer than half masers with detectable HⅡ regions. An improved radiative pumping mechanism is proposed, and it overcame the known drawback of former radiative models. The observationally statistical results can be interpreted by both the new mechanism and the evolutional model with gravitational force of star responsible for the HⅡ region.
刘汉淜1,Forster J R2,孙 锦3. 星际H2O与OH分子脉泽的统计与激发机制探讨[J]. 光谱学与光谱分析, 2006, 26(03): 408-410.
LIU Han-peng1,Forster J R2,SUN Jin3. The Survey and Its Interpretation for Interstellar OH and H2O Masers . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(03): 408-410.
[1] LIU Ke-ling(刘克玲). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2005, 25(1): 95. [2] YANG Yi, HOU Xiang-yan, WANG Shu-jun, et al(杨 屹，侯翔燕，王书俊, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2004, 24(12): 1672. [3] Forster J R, Caswell J L. Astrophys. J., 2000, 530: 371. [4] Van Dishoeck E F, Wright C M, Cernichano J, et al. Astrophys. J., 1998, 502: L173. [5] Ishiguro E, et al. J. Phys. B, 1978, 11: 993. [6] Liu H, Sun J, Thissen T. Astrophys. and Space Science, 2004, 289: 147. [7] Andrese P, et al. J. Chem. Phys., 1984, 80: 2548. [8] Liu H, Xu L H, Sun J. J. Infrared and Millimeter Waves, 2000, 21(3): 395. [9] Liu H, Forster J R. Astrophys. J., 2005, Submitted. [10] Keto E. Astrophys. J., 2002, 580: 980.
