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<i>NuSTAR</i>reveals the extreme properties of the super-Eddington accreting supermassive black hole in PG 1247+267
PG1247+267 is one of the most luminous known quasars at $z\sim2$ and is a strongly super-Eddington accreting SMBH candidate. We obtained NuSTAR data of this intriguing source in December 2014 with the aim of studying its high-energy emission, leveraging the broad band covered by the new NuSTAR and the archival …