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Astrophysics: Solving the mystery in the Dragon Egg Nebula?

Astrophysics: Solving the mystery in the Dragon Egg Nebula?

Binary star systems actually resemble twins because their stars are usually very similar. But the HD 148937 system does not meet these expectations at all, because one of the two massive stars is much younger than the other and is magnetic. ESO's Abigail Frost and her team discovered why this happens through observations and measurements of the structure: As they explained in “Science”.it was once a triplet from which two stars later merged – and from it emerged the extraordinary Dragon Egg Nebula.