Description: Un disque est un système aplati de matière en mouvement circulaire coplanaire autour d'un centre commun. La matière d'un disque peut être constituée de gaz, de poussières ou même d'étoiles. Des exemples de disque incluent les disques d'accrétion autour des protoétoiles, les disques protoplanétaires autour des jeunes objets stellaires, les disques d'accrétion autour des noyaux actifs de galaxie et les disques galactiques.

Related Terms:

• Active Galactic Nucleus
• Disque galactique
• Planet Formation
• Protoétoile
• Disque d'accrétion

Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher
The translation of this term and its definition is still awaiting approval

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