金牛T型星LkH_α120的Raman谱  

RAMAN SPECTRA OF THE T TAURI STAR LKH_α120

作　　者：曹新伍[1] 张象铝 

机构地区：[1]中国科学技术大学天体物理中心,合肥230026

出　　处：《天文学报》1992年第1期1-4,共4页Acta Astronomica Sinica

摘　　要：最近,Raman散射被成功地用来解释某些天体的谱线形成,Raman散射在天体物理中有着广泛的应用。本文考查了金牛T型星LkH_α120的谱线资料,并估算了Raman散射的截面及谱线的强度,发现金牛T型星LkH_α120的未被证认的谱线:λλ4200.9,5098.1 5613.9,5768.0,5859.0,6633.5,6667.0,7500.0A很可能是FeI,FeII线系被H原子、H_2分子和CO分子散射后所产生的Raman谱。The Raman scattering was successfully used to interpret some unidentified emission lines. This shows that the Raman scattering may play an important role in astrophysics. In this paper, the cross-section and line intensities of the Raman scattering are estimated and almost all the unidentified emission lines of the T Tauri star LkH_α120 (λλ4200.9, 5098.1, 5613.9, 5768.0, 5859.0, 6633.5, 6667.0, 7500.0) are interpreted as Raman-scattered FeI and FeII lines by H, H_2, and CO without any assumptions or parameters.

关 键 词：金牛T型星 LKHα120 RAMAN谱 

分 类 号：P145.4[天文地球—天体物理]