Abstract:Since the first microlensing planet discovery in 2003, more than 200 planets have been detected with gravitational microlensing, in addition to several freefloating planet and black hole candidates. In this chapter the microlensing theory is presented by introducing the numerical methods used to solve binary and triple lens problems and how these lead to the characterisation of the planetary systems. Then the microlensing planetary detection efficiency is discussed, with an emphasis on cold planets beyond the … Show more
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