Abstract

Invited Talk - Plenary

Friday, 19 September 2025, 11:00   (Synagoge - Kuppelsaal / virtual plenum)

Variable X-ray sky with SRG/eROSITA

Marat Gilfanov
Max-Planck-Institut für extraterrestrische Physik, Garching bei München

After more than two years of scanning the sky during 2019--2022 the eROSITA X-ray telescope aboard SRG orbital observatory produced the best ever X-ray maps of the sky and discovered more than three million X-ray sources, of which about 20\% are stars with active coronas in the Milky Way, and most of the rest are galaxies with active nuclei, quasars and clusters of galaxies. eROSITA detected over ~10^3 sources that changed their luminosity by more than an order of magnitude, about half of which are of extragalactic origin including about a hundred tidal disruption events. I will review some of the SRG/eROSITA results in the Eastern Galactic hemisphere with the emphasis on the time domain aspects of eROSITA data.