Concept information
Terme préférentiel
YY Orionis star
Définition(s)
- A YY Orionis star is an extremely young star, preceding even the T Tauri stage. YY Orionis stars are very young, late-type, low-mass stars, still contracting gravitationally and accreting matter from the protostellar cloud. They show inverse P Cygni profiles corresponding to an infall of material at 300–400 km/s directly onto the star. (Encyclopedia of Science, by David Darling, https://www.daviddarling.info/encyclopedia/T/T_Tauri.html#YY_Orionis_star)
Concept(s) générique(s)
Traductions
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français
URI
http://data.loterre.fr/ark:/67375/MDL-J4C3XMWR-6
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