PX437 EXOPLANETSHorne 2007

PX437 EXOPLANETS

Gravitational microlensing

Paczynski 1996, ARA&A 34, 419

Observer

Lensing mass

Background source

PX437 EXOPLANETS

Gravitational microlensing

Paczynski 1996, ARA&A 34, 419

SLens

time=const

PX437 EXOPLANETS

Impact parameter and amplification

Paczynski 1996, ARA&A 34, 419

Observer

Lensing mass

Background source

PX437 EXOPLANETS

First microlensing planetBeaulieu 2006, Nature 439, 437

PX437 EXOPLANETS

Two planet system

Gaudi 2008 Science 319, 927

PX437 EXOPLANETSHorne 2007

PX437 EXOPLANETS

PX437 EXOPLANETSVery Large Telescope (VLT), ESO

PX437 EXOPLANETS

The Extremely Large Telescope (ELT)

PX437 EXOPLANETS

PX437 EXOPLANETSKalas et al. 2008 Science 322 1345

PX437 EXOPLANETS

Marois et al. 2008Science 322 1348