Overview

• The Zwicky Transient Facility first detected the tidal disruption event AT2024tvd on May 8, 2025, marking the discovery of a supermassive black hole offset from its galaxy's center.
• Follow-up observations by NASA's Hubble Space Telescope and Chandra X-ray Observatory confirmed the black hole's mass of one million solar masses and its position 2,600 light-years from the galactic core.
• This is the first offset tidal disruption event identified through optical sky surveys, demonstrating a new method for locating wandering black holes.
• The host galaxy also contains a central supermassive black hole of 100 million solar masses, with the smaller black hole possibly displaced by a galaxy merger or three-body interaction.
• Future observatories, including the Vera Rubin Observatory and Roman Space Telescope, are expected to uncover more offset black holes, advancing our understanding of galaxy evolution and black hole dynamics.