A sintetizzare la situazione ci pensa ottimamente Xiaohui Fan in un commento pubblicato su NPR:
How can a quasar so luminous, and a black hole so massive, form so early in the history of the universe, at an era soon after the earliest stars and galaxies have just emerged? And what is the relationship between this monster black hole and its surrounding environment, including its host galaxy?La scienza è, dunque, un'avventura emozionante ricca di domande che spuntano spesso quando meno te lo aspetti.
This ultraluminous quasar with its supermassive black hole provides a unique laboratory to the study of the mass assembly and galaxy formation around the most massive black holes in the early universe.
Wu, X. B., Wang, F., Fan, X., Yi, W., Zuo, W., Bian, F., ... & Yang, Q. (2015). An ultraluminous quasar with a twelve-billion-solar-mass black hole at redshift 6.30. Nature, 518(7540), 512. doi:10.1038/nature14241 (arXiv)
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