LBA observations for project V626 semester 2024APRS

ASASSN-14ko is a transient source in the ESO 253-G003 galaxy system, which is in the process of merging. It was discovered by the ASAS-SN survey in 2014, and it periodically flares in the optical every 114 days, with a period that is decreasing (Payne et al. 2021). This variability is likely due to multiple partial tidal disruption events involving a giant star orbiting the supermassive black hole in the northeastern galaxy of ESO 253-G003. The ESO 253-G003 system has been detected in radio by historic ASKAP and ATCA observations. The X-ray spectrum, the large gas fraction in the core region, based on the merging galaxy scenario and line diagnostics from MUSE observations, suggests that pTDE-triggered jet launching could explain the observed radio emission. VLBI observations will allow us to resolve the core region of the pTDE hosting AGN.