Astronomers discover the most X-ray luminous high-redshift quasar

Using the Spektr-RG (SRG) spacecraft, Russian astronomers have investigated a sample of distant quasi-stellar objects (QSOs), or quasars. They report the detection of strong X-ray emissions from such source designated CFHQSJ142952+544717, the most X-ray luminous high-redshift quasar known to date. The finding is reported in a paper published July 9 on arXiv.org.

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