eROSITA

On July 13, 2019, Proton rocket launcher with DM-03 booster blasted off from Baikonur cosmodrome, carrying Russian X-ray observatory Spektr-RG. Today, we name some — but by no means the only — fascinating results of its work in these five years.

Data from 2-year sky survey by SRG/eROSITA were used to study X-ray variability of thousands of SDSS quasars. X-ray variability appeared to be linked with some physical parameters of supermassive black holes, such as theirs masses and accretion rates.