Evropská jižní observatoř

Kategorie: Ilustrace, Zpět na celou fotogalerii.

Popis (v anglickém jazyce):

Observations with the TIMMI2 instrument at the ESO 3.6-m telescope on La Silla have shown that the comparatively old brown dwarf LP 944-20 does not possess a surrounding disk of dust and gas. Another much younger Brown Dwarf, Cha HA 2 , has one. The new measurements show that this object has a flat, dense disk (lower diagramme), unlike the hotter (solar-like), young stars, that harbour "flared" disks with a diluted, very hot top layer (upper diagramme).

Odkaz na další informace na www.eso.org (stránka v AJ)