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Title: Connecting X-ray nuclear winds with galaxy-scale ionised outflows in two z  ∼  1.5 lensed quasars
Authors: Tozzi, P.
Cresci, G.
Marasco, A.
Nardini, E.
Marconi, A.
Mannucci, F.
Chartas, G.
Rizzo, F.
Amiri, A.
Brusa, M.
Comastri, A.
Dadina, M.
Lanzuisi, G.
Mainieri, V.
Mingozzi, M.
Perna, M.
Venturi, G.
Vignali, C.
Keywords: Galaxies: evolution;Quasars: emission lines;ISM: jets and outflows;Techniques: imaging spectroscopy;Galaxies: active
Issue Date: 20-Apr-2021
Publisher: EDP Sciences
DOI: 10.1051/0004-6361/202040190
Published version:
Citation: Astronomy and Astrophysics 648: A99(2021)
Abstract: Aims. Outflows driven by active galactic nuclei (AGN) are expected to have a significant impact on host galaxy evolution, but the matter of how they are accelerated and propagated on galaxy-wide scales is still under debate. This work addresses these questions by studying the link between X-ray, nuclear ultra-fast outflows (UFOs), and extended ionised outflows, for the first time, in two quasars close to the peak of AGN activity (z ∼ 2), where AGN feedback is expected to be more effective. Methods. Our selected targets, HS 0810+2554 and SDSS J1353+1138, are two multiple-lensed quasars at z ∼ 1.5 with UFO detection that have been observed with the near-IR integral field spectrometer SINFONI at the VLT. We performed a kinematical analysis of the [O III]λ5007 optical emission line to trace the presence of ionised outflows. Results. We detected spatially resolved ionised outflows in both galaxies, extended more than 8 kpc and moving up to v > 2000 km s−1. We derived mass outflow rates of ∼12 M⊙ yr−1 and ∼2 M⊙ yr−1 for HS 0810+2554 and SDSS J1353+1138. Conclusions. Compared with the co-hosted UFO energetics, the ionised outflow energetics in HS 0810+2554 is broadly consistent with a momentum-driven regime of wind propagation, whereas in SDSS J1353+1138, it differs by about two orders of magnitude from theoretical predictions, requiring either a massive molecular outflow or a high variability of the AGN activity to account for such a discrepancy. By additionally considering our results together with those from the small sample of well-studied objects (all local but one) having both UFO and extended (ionised, atomic, or molecular) outflow detections, we found that in 10 out of 12 galaxies, the large-scale outflow energetics is consistent with the theoretical predictions of either a momentum- or an energy-driven scenario of wind propagation. This suggests that such models explain the acceleration mechanism of AGN-driven winds on large scales relatively well.
E-ISSN: 1432-0746
ISSN: 0004-6361
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