2021A&A...656A..45M


Query : 2021A&A...656A..45M

2021A&A...656A..45M - Astronomy and Astrophysics, volume 656A, 45-45 (2021/12-1)

AGN feeding and feedback in Fornax A. Kinematical analysis of the multi-phase ISM.

MACCAGNI F.M., SERRA P., GASPARI M., KLEINER D., MOROKUMA-MATSUI K., OOSTERLOO T.A., ONODERA M., KAMPHUIS P., LOI F., THORAT K., RAMATSOKU M., SMIRNOV O. and WHITE S.V.

Abstract (from CDS):

We 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 (HI), 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 s–1). 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.

Abstract Copyright: © ESO 2021

Journal keyword(s): galaxies: individual: Fornax A - galaxies: individual: NGC 1316 - galaxies: active - galaxies: kinematics and dynamics - galaxies: ISM - accretion - accretion disks

VizieR on-line data: <Available at CDS (J/A+A/656/A45): list.dat fits/*>

Simbad objects: 10

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Number of rows : 10
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 M 77 GiP 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4424 2
2 NGC 1266 AGN 03 16 00.7739640240 -02 25 37.827013584   14   12.46   ~ 287 1
3 NGC 1316 GiP 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1321 1
4 NGC 1433 GiG 03 42 01.4847418992 -47 13 18.929092656   10.84 9.99 9.61 10.2 ~ 352 0
5 NGC 1813 Cl* 05 02 42.800 -70 19 13.76   13.14 12.76     ~ 13 0
6 NGC 1808 Sy2 05 07 42.343 -37 30 46.98 11.05 10.80 9.94 9.36 10.2 ~ 699 3
7 Mrk 231 Sy1 12 56 14.2341182928 +56 52 25.238373852   14.68 13.84     ~ 1930 3
8 IC 5063 Sy2 20 52 02.329 -57 04 07.60   12.92 13.60 11.30   ~ 611 1
9 NGC 7409 G 22 53 48.1227904056 +20 12 37.415955096   15.6       ~ 11 0
10 ACO 2597 ClG 23 25 19.70 -12 07 27.7           ~ 526 0

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2023.01.27-22:26:55

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