2019A&A...626A..89B


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.03CEST22:57:42

2019A&A...626A..89B - Astronomy and Astrophysics, volume 626A, 89-89 (2019/6-1)

QSO2 outflow characterization using data obtained with OSIRIS at the Gran Telescopio Canarias.

BELLOCCHI E., VILLAR MARTIN M., CABRERA-LAVERS A. and EMONTS B.

Abstract (from CDS):


Context. Ionized outflows are ubiquitous in non-radio-loud obscured quasars (QSO2s) at different redshifts. However, the actual size of the outflows and their efficiency for gas ejection and star formation truncation are controversial. Large-scale (exceeding several kiloparsec) extended radio structures might be necessary to identify (even to trigger) outflow signatures across such large spatial scales.
Aims. We search for large-scale ionized outflows associated with six optically selected QSO2 (five non-radio-loud and one radio-loud) at z∼0.2-0.5, targeting objects with extended radio structures. We also investigate the dynamical state of the QSO2 host galaxies.
Methods. We obtained data with the optical imager and long-slit spectrograph (OSIRIS) mounted on the 10.4m Gran Telescopio Canarias Spanish telescope (GTC) for these six QSO2 with the slit located along the radio axis. We traced the gas kinematics with the [OIII]λλ4959,5007 lines to investigate ionized outflows and characterize the dynamical state of the host galaxies. This second study was complemented with previously published spectroscopic data obtained with the multimode focal reducer and low dispersion spectrograph (FORS2) mounted on the Very Large Telescope (VLT) of 13 more QSO2 at similar z.
Results. We identify ionized outflows in four out of the six QSO2 observed with the GTC. The outflows are spatially unresolved in two QSO2 and compact in a third (radial size of R=0.8±0.3kpc). Of particular interest is the radio-quiet QSO2 SDSS 0741+3020 at z=0.47. It is associated with a giant ∼112kpc nebula. An ionized outflow probably induced by the radio structures has been detected along the axis defined by the central ∼1'' radio structure, extending up to at least ∼4kpc from the active galactic nucleus (AGN). Turbulent gas (σ∼130km/s) has also been detected across the giant gas nebula up to ∼40kpc from the AGN. This turbulence may have been induced by outflows triggered by the interaction between a so-far undetected large-scale radio source and the nebula. Regarding the dynamical state of the host galaxies, we find that the majority of the QSO2 show v/σ<1, implying that they are dominated by random motions (so-called dispersion-dominated systems). Most (17 of 19) fall in the area of the E/S0 galaxies in the dynamical diagram v/σ versus σ. None are consistent with spiral or disk galaxies.

Abstract Copyright: © ESO 2019

Journal keyword(s): galaxies: active - galaxies: kinematics and dynamics - galaxies: jets - quasars: emission lines

Simbad objects: 21

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Number of rows : 21

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 SDSS J074130.51+302005.3 Sy2 07 41 30.6 +30 20 05     22.36     ~ 6 0
2 ICRF J083454.9+553421 Sy2 08 34 54.90395243 +55 34 21.0703658   20.75 19.45 17.180   ~ 250 2
3 SDSS J090226.74+545952.2 Sy2 09 02 26.741 +54 59 52.27   22.17 21.06     ~ 9 0
4 SDSS J091231.97+451420.6 Sy2 09 12 31.9 +45 14 21     20.96     ~ 5 0
5 SDSS J092318.04+010144.7 Sy2 09 23 18.04296 +01 01 44.7924   21.10 20.32     ~ 17 0
6 SDSS J095044.69+011127.2 Sy2 09 50 44.7 +01 11 27     21.59     ~ 8 0
7 SDSS J095514.11+034654.2 Sy2 09 55 14.1230930086 +03 46 54.173286709   21.51 20.67     ~ 16 0
8 SDSS J095629.06+573508.9 Sy2 09 56 29.0509 +57 35 08.672   22.11 20.94     ~ 9 0
9 [VV2010c] J101403.5+024417 Sy2 10 14 03.52464 +02 44 16.5192           ~ 9 0
10 [VV2010c] J110140.5+400422 Sy2 11 01 40.5427 +40 04 23.068   21.16 20.79     ~ 13 0
11 SDSS J115314.36+032658.6 Sy2 11 53 14.3684623570 +03 26 58.521615788   21.01 20.47     ~ 28 0
12 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6207 3
13 SDSS J124749.79+015212.6 Sy2 12 47 49.792 +01 52 12.47           ~ 10 0
14 Mrk 231 Sy1 12 56 14.2340989340 +56 52 25.238555193   14.68 13.84     ~ 1777 3
15 [VV2010c] J130740.6-021455 Sy2 13 07 40.571 -02 14 55.31   21.50 20.85     ~ 13 0
16 QUEST J133633.7-003936.0 Sy2 13 36 33.6568698350 -00 39 36.335720854   20.96 19.96     ~ 18 0
17 SDSS J133735.01-012815.6 Sy2 13 37 35.01096 -01 28 15.6396   19.83 19.03     ~ 19 0
18 SDSS J140740.08+021748.1 Sy2 14 07 40.0847762173 +02 17 48.219787509   21.01 20.03     ~ 15 0
19 QSO J1413-0142 Sy2 14 13 15.303 -01 42 21.02   21.00 20.51     ~ 23 0
20 2dFGRS TGN278Z042 Sy2 14 30 27.664 -00 56 14.82   19.85 19.23 17.603   ~ 16 0
21 SDSS J154613.27-000513.5 Sy2 15 46 13.270 -00 05 13.57           ~ 12 0

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2020.07.03-22:57:42

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