Morgan, Christopher W.Hyer, Gregory E.Bonvin, VivienMosquera, Ana M.Cornachione, MatthewCourbin, FredericKochanek, Christopher S.Falco, Emilio E.2019-01-032019-01-032019-01-032018-12-2010.3847/1538-4357/aaed3ehttps://infoscience.epfl.ch/handle/20.500.14299/153334WOS:000453609600004We present 13 seasons of R-band photometry of the quadruply lensed quasarWFI 2033-4723 from the 1.3m SMARTS telescope at CTIO and the 1.2m Euler Swiss Telescope at La Silla, in which we detect microlensing variability of similar to 0.2mag on a timescale of similar to 6 years. Using a Bayesian Monte Carlo technique, we analyze the microlensing signal to obtain a measurement of the size of this system's accretion disk of log (r(s)/cm) 15.86(-0.27)(+0.25) + at lambda(rest) = 2481 angstrom, assuming a 60 degrees inclination angle. We confirm previous measurements of the BC and AB time delays, and we obtain a tentative measurement of the delay between the closely spaced A1 and A2 images of Delta t(A1A2) = t(A1)-t(A2) =-3.9(-2.2)(+3.4) days. We conclude with an update to the Quasar Accretion Disk Size-Black Hole Mass Relation, in which we confirm that the accretion disk size predictions from simple thin disk theory are too small.Astronomy & Astrophysicsaccretion, accretion disksgravitational lensing: microgravitational lensing: strongquasars: individual (wfi 2033-4723)dark-mattergravitational lenseshe 0435-1223x-raycosmograilgalaxyviih-0text::journal::journal article::research article