Dust Shell Models for the Young Stellar Objects in Giant Molecular Couls

Journal of Astronomy and Space Sciences

卷:17

In-Ok Song¹  Kyung-Won Suh¹ 

[1] Department of Astronomy and Space Science, Chungbuk National University, Cheongju 361-763, Korea;

关键词: DUST SHELL MODELS;    YOUNG STELLAR OBJECTS;    GIANT MOLECULAR CLOUDS;   

DOI  :  

来源: DOAJ

【 摘 要 】

We have modeled the observed spectral energy distributions (SEDs) of young stellar objects (YSOs) in giant molecular clouds (GMCs). We propose the theoretical models for the dust envelopes around YSOs. The YSOs in a GMC may share the same initial chemical composition. In this paper, we compare the model SEDs with the observations of the YSOs. Dust shells of the YSOs are composed of a mixture of astronomical silicate and graphite grains. We propose the models for the evolution of the GMCs comparing the shape of the SEDs on the IRAS 2-color diagram with the age.

【 授权许可】

Unknown