Analysis of high magnification events on Q A Juan González-Cadelo, Rodrigo Gil-Merino & Luis J. Goicoechea (University of Cantabria)

1’’ z LENS = 0.04 z SOURCE = 1.7

Observational data OGLE collaborationGLITP collaboration

Caustic crossing microlensing event? New information about parameters and models RESULTS International proyects OBSERVATIONAL DATA ANALYSIS SIMULATIONS Models Cosmology GL Theory

Observational data

Mixture of data I (OGLE+GLITP) Re-reduction of OGLE

Mixture of data II (OGLE+GLITP) Fit by minimization of  2

Microlensing modelization

Parameters & models I Cosmological model Friedman-Lemaitre’s Universe

Parameters & models II Lens plane model Mass of microlensesTransversal velocity of microlenses

Parameters & Models III Source plane model Geometry of the sourcecircular Intensity of source Uniform disk Standar accretion disk Gaussian disk

Uniform disk

Gaussian disk

Standar accretion disk

Observations Vs Simulations Test  2 Test 

Results I: Best parameters Parametrization Trayectories with  1 % of trayectories with  sts0236 % sts0112 % sts0236 % sts % sts % stm0159 % sts0212 %

Results II: Best source model SOURCE MODEL (intensity+size) Trayectories with  1 % of trayectories with  1 Standar accretion disk small 4991 % Standar accretion disk medium 59 %

Results III: Best microlenses model MICROLENS MODEL (velocity+mass) Trayectories with  1 % of trayectories with  1 36 % 47 % 1426 % 2750 % 611 %

Results IV: Caustic crossing? Parametrization Trayectories with  1 Number of caustic crossing events % of caustic crossing events for that parametrization sts % sts % sts % sts % sts % stm % sts %

Future steps New observational data New magnification patterns New parametrizations