摘要
本文给出了W33A在两个跃迁频率上的左右图偏振OH脉泽辐射谱线,采用细管和球模型,获得脉泽活动区的氢分子数密度近似107cm3.为了获得1046s1量级脉泽光子发射率,两种模型一致要求抽运率为1(OH)cm3s1,但球型脉泽活动区要求较高的抽运效率.
The circular polarization spectra in W33A are. observed on emission. from the transition of OH. The hydrogen density in the masing region is infered about 107 cm3 in both the long thin tube and- spherical maser,A pump rate of ~ 1 (OH) cm3s1 is required in'both geometries for the photon emission rate of ~1046s1. The required pump efficiency is higher in the sphericalmaserthan in the thin tube.
出处
《空间科学学报》
CAS
CSCD
北大核心
1994年第3期177-182,共6页
Chinese Journal of Space Science
基金
国家攀登计划
自然科学基金