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Kuniye

Cr\u00e9dits : 123RF<\/figcaption><\/figure>\n

Baptis\u00e9 VLASS J041009.05\u2212013919.88 (ou J0410\u22120139), le blazar r\u00e9cemment d\u00e9couvert par les astronomes est le plus distant jamais observ\u00e9. Il offre un aper\u00e7u rare de l\u2019\u00e9poque de la r\u00e9ionisation, une p\u00e9riode o\u00f9 l\u2019Univers n\u2019avait pas encore 800 millions d\u2019ann\u00e9es, et remet d\u00e9sormais en question nos mod\u00e8les actuels sur la formation des trous noirs et des galaxies dans l\u2019Univers primitif.<\/strong><\/p>\n

Les blazars sont une cat\u00e9gorie particuli\u00e8re de quasars, des noyaux actifs de galaxies aliment\u00e9s par des trous noirs supermassifs. Leur particularit\u00e9 ? Leur jet de particules est orient\u00e9 directement vers nous, ce qui les rend extr\u00eamement lumineux. J0410\u22120139, avec ses 700 millions de masses solaires, est un exemple impressionnant. Pour comparaison, le trou noir au centre de notre Voie lact\u00e9e, Sagittarius A*, ne p\u00e8se que 4 millions de masses solaires.<\/strong><\/p>\n

Lire \u00e9galement –<\/strong> Les trous noirs ne d\u00e9truisent pas tout sur leur passage, ces deux \u00e9toiles en sont la preuve<\/a><\/p>\n