Concept information
Preferred term
Young stellar objects
Definition
- Any star that has evolved past the protostar stage, but has not yet arrived on the main sequence. There is a variety of YSOs depending on their age, mass, and environment, including Herbig stars, T Tauri stars, and, in general, compact infrared sources embedded in molecular clouds. (en)
Broader concept
- Protostars (en)
Narrower concepts
- FU Orionis stars (en)
- Herbig Ae/Be stars (en)
- Herbig-Haro objects (en)
- T Tauri stars (en)
Entry terms
- YSO (en)
- YSOs (en)
Editorial note
URI
http://astrothesaurus.org/uat/1834
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