MARASCO, AntoninoAntoninoMARASCOCRESCI, GiovanniGiovanniCRESCINARDINI, EmanueleEmanueleNARDINIMANNUCCI, FilippoFilippoMANNUCCIMARCONI, AlessandroAlessandroMARCONITOZZI, PaoloPaoloTOZZITOZZI, GiuliaGiuliaTOZZIAmiri, A.A.AmiriVENTURI, GIACOMOGIACOMOVENTURIPICONCELLI, EnricoEnricoPICONCELLILANZUISI, GiorgioGiorgioLANZUISITOMBESI, FrancescoFrancescoTOMBESIMINGOZZI, MATILDEMATILDEMINGOZZIPERNA, MICHELEMICHELEPERNACarniani, StefanoStefanoCarnianiBrusa, MarcellaMarcellaBrusadi Serego Alighieri, SperelloSperellodi Serego Alighieri2024-01-192024-01-1920200004-6361http://hdl.handle.net/20.500.12386/34555We used MUSE adaptive optics data in narrow field mode to study the properties of the ionised gas in MR 2251-178 and PG 1126-041, two nearby (z ≃ 0.06) bright quasars (QSOs) hosting sub-pc scale ultra-fast outflows (UFOs) detected in the X-ray band. We decomposed the optical emission from diffuse gas into a low- and a high-velocity components. The former is characterised by a clean, regular velocity field and a low (∼80 km s<SUP>-1</SUP>) velocity dispersion. It traces regularly rotating gas in PG 1126-041, while in MR 2251-178 it is possibly associated with tidal debris from a recent merger or flyby. The other component is found to be extended up to a few kpc from the nuclei, and shows a high (∼800 km s<SUP>-1</SUP>) velocity dispersion and a blue-shifted mean velocity, as is expected from outflows driven by active galactic nuclei (AGN). We estimate mass outflow rates up to a few M<SUB>⊙</SUB> yr<SUP>-1</SUP> and kinetic efficiencies L<SUB>KIN</SUB>/L<SUB>BOL</SUB> between 1-4 × 10<SUP>-4</SUP>, in line with those of galaxies hosting AGN of similar luminosities. The momentum rates of these ionised outflows are comparable to those measured for the UFOs at sub-pc scales, which is consistent with a momentum-driven wind propagation. Pure energy-driven winds are excluded unless about 100× additional momentum is locked in massive molecular winds. In comparing the outflow properties of our sources with those of a small sample of well-studied QSOs hosting UFOs from the literature, we find that winds seem to systematically lie either in a momentum-driven or an energy-driven regime, indicating that these two theoretical models bracket the physics of AGN-driven winds very well. <P />The reduced datacubes are only available at the CDS via anonymous ftp to <A href="http://cdsarc.u-strasbg.fr/">http://cdsarc.u-strasbg.fr</A> (ftp://130.79.128.5) or via <A href="http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/644/A15">http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/644/A15</A>STAMPAenArticle10.1051/0004-6361/2020388892-s2.0-85097007947https://www.aanda.org/articles/aa/full_html/2020/12/aa38889-20/aa38889-20.htmlhttp://arxiv.org/abs/2009.11294v12020A&A...644A..15MFIS/05 - ASTRONOMIA E ASTROFISICAERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation