Astronomers using the eROSITA X-ray telescope discovered a dramatic 'changing-look' active galactic nucleus in galaxy HE 1237-2252.
17 × X-ray dimming factor
18 months Timescale
Changing-Look AGN Event type
Astronomers using the eROSITA X-ray telescope discovered a dramatic 'changing-look' active galactic nucleus in galaxy HE 1237-2252.