Maccagni, Filippo M.Serra, PaoloGaspari, M.Kleiner, DaneMorokuma-Matsui, K.Oosterloo, T.A.Onodera, M.Kamphuis, PeterLoi, F.Thorat, KshitijRamatsoku, MpatiSmirnov, Oleg M.White, S.V.2022-06-272022-06-272021-12Maccagni, F.M., Serra, P., Gaspari, M. et al. 2021, 'AGN feeding and feedback in Fornax A : kinematical analysis of the multi-phase ISM', Astronomy and Astrophysics, vol. 656, no. A45, pp. 1-22.2329-1273 (print)2329-1265 (online)10.1051/0004-6361/202141143https://repository.up.ac.za/handle/2263/85963We present a multi-wavelength study of the gaseous medium surrounding the nearby active galactic nucleus (AGN), Fornax A. Using MeerKAT, ALMA, and MUSE observations, we reveal a complex distribution of the atomic (H i), molecular (CO), and ionised gas in its centre and along the radio jets. By studying the multi-scale kinematics of the multi-phase gas, we reveal the presence of concurrent AGN feeding and feedback phenomena. Several clouds and an extended 3 kpc filament – perpendicular to the radio jets and the inner disk (r . 4:5 kpc) – show highly-turbulent kinematics, which likely induces non-linear condensation and subsequent chaotic cold accretion (CCA) onto the AGN. In the wake of the radio jets and in an external (r & 4:5 kpc) ring, we identify an entrained massive ( 107 M ) multi-phase outflow (vOUT 2000 km s1). The rapid flickering of the nuclear activity of Fornax A ( 3 Myr) and the gas experiencing turbulent condensation raining onto the AGN provide quantitative evidence that a recurrent, tight feeding and feedback cycle may be self-regulating the activity of Fornax A, in agreement with CCA simulations. To date, this is one of the most in-depth probes of such a mechanism, paving the way to apply these precise diagnostics to a larger sample of nearby AGN hosts and their multi-phase inter stellar medium.en© ESO 2021Galaxies: individual: fornax AGalaxies: individual: NGC 1316Galaxies: activeGalaxies: kinematics and dynamicsGalaxies: ISMAccretion, accretion disksActive galactic nucleus (AGN)MeerKATArticle