Chen, Geoff C. -F.Fassnacht, Christopher D.Suyu, Sherry H.Rusu, Cristian E.Chan, James H. H.Wong, Kenneth C.Auger, Matthew W.Hilbert, StefanBonvin, VivienBirrer, SimonMillon, MartinKoopmans, Leon V. E.Lagattuta, David J.McKean, John P.Vegetti, SimonaCourbin, FredericDing, XuhengHalkola, AleksiJee, InhShajib, Anowar J.Sluse, DominiqueSonnenfeld, AlessandroTreu, Tommaso2019-11-292019-11-292019-11-292019-12-0110.1093/mnras/stz2547https://infoscience.epfl.ch/handle/20.500.14299/163473WOS:000496926900020We present the measurement of the Hubble constant, H-0, with three strong gravitational lens systems, We describe a blind analysis of both PG 1115+080 and 11E0435-1223 as well as an extension of our previous analysis of RXJ 1131-1231. For each lens, we combine new adaptive optics (AO) imaging from the Keck Telescope, obtained as part of the SHARP (Strong-lensing High Angular Resolution Programme) AO effort, with Hubble Space Telescope (HST) imaging, velocity dispersion measurements, and a description of the line-of-sight mass distribution to build an accurate and precise lens mass model. This mass model is then combined with the COSMOGRAIL-measured time delays in these systems to determine Ho. We do both an AO only and an AO + HST analysis of the systems and find that AO and HST results are consistent. After unblinding, the AO-only analysis gives H-0 = 82.8(-8.3)(+9.4) km s(-1) Mpc(-1) for PG 1115+080, H-0 = 70.1(-4.5)(+5.3) km s(-1) Mpc(-1) for HE 0435-1223, and H-0 = 77.0(-4.6)(+4.0) km s(-1) Mpc(-1) for RXJ 1131-1231. The joint AO-only result for the three lenses is H-0 = 75.6(-3.3)(+3.2) km s(-1) Mpc(-1). The joint result of the AO + HST analysis for the three lenses is H-0 = 76.8(-2.6)(+2.6) km s(-1) Mpc(-1). All of these results assume a flat A cold dark matter cosmology with a uniform prior on Omega(m) in [0.05, 0.5] and H-0 in [0, 150] km s(-1) Mpc(-1). This work is a collaboration of the SHARP and H0LiCOW teams, and shows that AO data can be used as the high-resolution imaging component in lens-based measurements of H-0. The full time-delay cosmography results from a total of six strongly lensed systems are presented in a companion paper.Astronomy & AstrophysicsAstronomy & Astrophysicsgravitational lensing: stronginstrumentation: adaptive opticsdistance scaleearly-type galaxiesbaryon acoustic-oscillationsedge-on discdark-matterhubble constantspectroscopic surveydata releasephotometric redshiftsmass structurehe 0435-1223text::journal::journal article::research article