年轻星体的近红外观测与研究

Infrared Observations and Studies of Young Stellar Objects

本文对36颗不同质量、不同演化阶段的年轻星体进行了J，H，K波段测光，并结合其它光学、近红外、IRAS、亚毫米、毫米波段的观测结果，计算了它们的红外色指数、能谱分布指数、红外光度等参量，得到近红外和远红外双色图，比较了不同类别源的参量分布．最后，在前人工作的基础上，改进了低质量主序前星的辐射模型，对一些源进行了计算并分析其星周状况．

In this paper near-infrared photometry of 36 young stellar objects of different types is presented. Combining the J, H, K flux densities wiLh other optical, near-infrared, IRAS,submillimeter, and millimeter emission fiux data, we have calculated their colour indexes,spectral indexes and luminosities, all in the infrared. Colour-colour diagram distributions of the various sources in both the near-and far-infrared are derived. For the low mass premain-sequence stars we improved the radiative models, did the calculations, and analyzed the circumstellar structures.