Pour la première fois, les interféromètres gravitationnel LIGO et Virgo ont détecté une fusion entre un trou noir et une étoile à neutrons. Et il n'y en pas qu'une seule, il y en a eu deux espacées de 10 jours en janvier 2020. Ça valait le coup de faire un seul article pour parler des deux en même temps. Et c'est la première fois que des fusions mixtes de ce genre sont clairement identifiées par leurs ondes gravitationnelles. Les chercheurs des collaborations LIGO, Virgo et KAGRA publient leurs découvertes dans The Astrophysical Journal Letters sous le titre Observation of Gravitational Waves from Two Neutron Star–Black Hole Coalescences.
Emissions
- Ça Se Passe Là-Haut
- #1195 : Deux fusions trou noir-étoile à neutrons détectées par LIGO/Virgo pour la première fois
Publié le par eric simon
Eric Simon
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