The low temperature and high density regions in the giant molecular cloud can be seen in silhouette under the mid infrared radiation of the galactic plane
Infrared dark cloud(infrared dark cloud, IRDC) isGiant sub cloudLow temperature and high density areas inGalactic planeThey can be seen under the radiation of mid infrared raySilhouette。
Infrared dark cloud was used in 1996infrared space observatory (Infrared Space Observatory, ISO), so further research is needed.
importance
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astronomerIt is believed that they represent the earliest stage of the formation of massive stars, so it is important to understand the overall process of star formation.
