An eROSITA search for alternating up-down-up-down X-ray light curves yields 16 SMBH binary candidates, with eRASSt J0530-4125 showing a ~1 year quasi-period.
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Searching for supermassive black holes binaries within SRG/eROSITA-De I: Properties of the X-ray selected candidates
An eROSITA search for alternating up-down-up-down X-ray light curves yields 16 SMBH binary candidates, with eRASSt J0530-4125 showing a ~1 year quasi-period.