Des astrophysiciens ont découvert une binaire stellaire avec une période orbitale extrêmement courte : elles se tournent l'une autour de l'autre toutes les 51 minutes. Le système fait partie d'une classe rare de binaires connue sous le nom de "variables cataclysmiques", dans laquelle une étoile semblable au soleil tourne en orbite serrée autour d'une naine blanche. Et ici, l'étoile compagne serait de très faible masse mais très dense... L'étude est publiée dans Nature.
- Emissions
- Ça Se Passe Là-Haut
- #1395 : Une étoile binaire avec une période orbitale de seulement 51 minutes
Publié le par eric simon
Eric Simon
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