Sluse, D.Schmidt, R.Courbin, F.Hutsemekers, D.Meylan, G.Eigenbrod, A.Anguita, T.Agol, E.Wambsganss, J.2011-12-162011-12-162011-12-16201110.1051/0004-6361/201016110https://infoscience.epfl.ch/handle/20.500.14299/74326WOS:000288541600052Aims. We aim to use microlensing taking place in the lensed quasar QSO 2237+0305 to study the structure of the broad line region (BLR) and measure the size of the region emitting the C-IV and C-III] lines.gravitational lensing: microgravitational lensing: strongquasars: generalquasars: emission linesquasars: individual: QSO 2237+0305line: formationActive Galactic NucleiBlack-Hole MassDigital Sky SurveyEmission-LinesLight CurvesProbability-DistributionsRadiation PressureSystem Q2237+0305Eddington RatioAccretion DiskZooming into the broad line region of the gravitationally lensed quasar QSO 2237+0305 equivalent to the Einstein Cross III. Determination of the size and structure of the C-IV and C-III] emitting regions using microlensingtext::journal::journal article::research article