R136a1 est l'étoile la plus massive connue. Cette étoile colossale est une membre de l'amas d'étoiles R136, qui se trouve à environ 160 000 années-lumière de la Terre, au centre de la nébuleuse de la Tarentule dans le Grand Nuage de Magellan. On pensait jusqu'à aujourd'hui que R136a1 avait une masse comprise entre 250 et 320 masses solaires, mais des nouvelles observations très détaillées revoient cette estimation à la baisse. Une étude à paraître dans The Astrophysical Journal.
Emissions- Ça Se Passe Là-Haut
- #1370 : La masse de l'étoile la plus massive connue revue à la baisse
Publié le par eric simon
Eric Simon
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