Oral Presentation

Centaurus A Observation with East Asian VLBI Network

Author(s): Fumie Tazaki (NAOJ)

Presenter: Fumie Tazaki (NAOJ)

Centaurus A is the closest active galactic nucleus with a powerful relativistic jet, it is the best target to study the physics of jet production at the smallest linear scales among all known extragalactic jets. The scales of jet launching site less than ∼ 500 Rs from the supermassive black hole is investigated with EHT observations at 1.3mm wavelength (Janssen et al. 2021). The image obtained with EHT shows a clear edge-brightened morphology, as well as the M87 jet at the same gravitational radius, where the jet started to confine. To better understand the innermost jet regions of Centaurus A in the era of EHT, we have started a new observing program on Centaurus A with the East Asian VLBI Network (EAVN) since 2018. We will report the current status of the monitoring project of Centaurus A with EAVN and discuss obtained results of jet shape and kinematics.