2018A&A...614A..94H


C.D.S. - SIMBAD4 rel 1.7 - 2020.04.02CEST11:34:50

2018A&A...614A..94H - Astronomy and Astrophysics, volume 614A, 94-94 (2018/6-1)

An outflow in the Seyfert ESO 362-G18 revealed by Gemini-GMOS/IFU observations.

HUMIRE P.K., NAGAR N.M., FINLEZ C., FIRPO V., SLATER R., LENA D., SOTO-PINTO P., MUNOZ-VERGARA D., RIFFEL R.A., SCHMITT H.R., KRAEMER S.B., SCHNORR-MULLER A., FISCHER T.C., ROBINSON A., STORCHI-BERGMANN T., CRENSHAW M. and ELVIS M.S.

Abstract (from CDS):

We present two-dimensional stellar and gaseous kinematics of the inner 0.7 x 1.2 kpc2 of the Seyfert 1.5 galaxy ESO 362-G18, derived from optical (4092-7338 Å) spectra obtained with the GMOS integral field spectrograph on the Gemini South telescope at a spatial resolution of ≃170 pc and spectral resolution of 36 km s–1. ESO 362-G18 is a strongly perturbed galaxy of morphological type Sa or S0/a, with a minor merger approaching along the NE direction. Previous studies have shown that the [OIII] emission shows a fan-shaped extension of ≃10'' to the SE. We detect the [OIII] doublet, [NII] and Hα emission lines throughout our field of view.The stellar kinematics is dominated by circular motions in the galaxy plane, with a kinematic position angle of ≃137° and is centred approximately on the continuum peak. The gas kinematics is also dominated by rotation, with kinematic position angles ranging from 122° to 139°, projected velocity amplitudes of the order of 100 km s–1, and a mean velocity dispersion of 100 km s–1. A double-Gaussian fit to the [OIII]λ5007 and Hα lines, which have the highest signal to noise ratios of the emission lines, reveal two kinematic components: (1) a component at lower radial velocities which we interpret as gas rotating in the galactic disk; and (2) a component with line of sight velocities 100-250 km s–1 higher than the systemic velocity, interpreted as originating in the outflowing gas within the AGN ionization cone. We estimate a mass outflow rate of 7.4 x 10–2 M yr–1 in the SE ionization cone (this rate doubles if we assume a biconical configuration), and a mass accretion rate on the supermassive black hole (SMBH) of 2.2 x 10–2 M yr–1. The total ionized gas mass within ∼84 pc of the nucleus is 3.3 x 105 M; infall velocities of ∼34 km s–1 in this gas would be required to feed both the outflow and SMBH accretion.

Abstract Copyright: © ESO 2018

Journal keyword(s): galaxies: active - galaxies: individual: ESO 362-G18 - galaxies: Seyfert - galaxies: nuclei - galaxies: kinematics and dynamics

VizieR on-line data: <Available at CDS (J/A+A/614/A94): list.dat fits/*>

Status at CDS:  

Simbad objects: 3

goto Full paper

goto View the reference in ADS

Number of rows : 3

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 LP 995-86 PM* 03 48 22.6125635562 -39 08 37.013516494   13.61 13.15     F 87 0
2 ESO 362-18 Sy2 05 19 35.8124008506 -32 39 27.923759175   13.81 13.37 12.73   ~ 192 0
3 NGC 4151 Sy1 12 10 32.5771747733 +39 24 21.057727323   12.18 11.48     ~ 3351 2

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2018A&A...614A..94H and select 'bookmark this link' or equivalent in the popup menu


2020.04.02-11:34:50

© Université de Strasbourg/CNRS

    • Contact