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Physics Colloquium - Dr Michael Albrow

Monday, 21 August 2017

Physics Department

Dr Michael Albrow

Associate Professor

Department of Physics & Astronomy

University of Canterbury

"Detecting Distant Planets By Microlensing"

In 1936, Einstein described the deviation of light rays from a distant star as they traverse the gravitational field of a closer star, commenting "Of course, there is no hope of observing this phenomenon directly". Now days, we routinely observe this gravitational microlensing effect for around 2000 stars each year. I will give an introduction to the physics of microlensing, and show how we use the phenomenon to infer the presence of planets around stars located thousands of light-years away from Earth.

WHEN: Monday 21 August 2017
WHERE: Room 314, Science 3 Building
TIME: 3.00 pm–4.00 pm

All interested are welcome to attend

Light refreshments to follow in Common Room