Hubble Space Telescope Observations of [O III] Emission in Nearby QSO2s: Physical Properties of the Ionised Outflows

The authors thank the anonymous referee for helpful comments that improved the clarity of this paper.Support for this work was provided by NASA through grant number HST-GO-13728.001-A from the Space Telescope Science Institute, which is operated by AURA, Inc., under NASA contract NAS 5-26555. Basic research at the Naval Research Laboratory is funded by 6.1 base funding. T.C.F. was supported by an appointment to the NASA Postdoctoral Program at the NASA Goddard Space Flight Center, administered by the Universities Space Research Association under contract with NASA. T.S.-B. acknowledges support from the Brazilian institutions CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico) and FAPERGS (Fundacao de Amparo a Pesquisa do Estado do Rio Grande do Sul). L.C.H. was supported by the National Key R&D Program of China (2016YFA0400702) and the National Science Foundation of China (11473002, 11721303). M.V. gratefully acknowledges financial support from the Danish Council for Independent Research via grant no. DFF 4002-00275 and 8021-00130. This research has made use of the NASA/IPAC Extragalactic Database (NED), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. This paper used the photoionization code Cloudy, which can be obtained from http://www.nublado.org. We thank Gary Ferland and associates, for the maintenance and development of Cloudy