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.

Astrophysicists from IKI and Ioffe Institute, using the data from SRG/eROSITA space telescope, studied the properties of a shock in Coma cluster of galaxies. The paper summarising their results was accepted for publication in Astronomy&Astrophysics.

At first AT2020mrf seemed to be an ordinary optical transient, but thanks to SRG/eROSITA discovery of a new X-ray source in the same place it became clear that the astrophysicists have encountered the most peculiar object.