TUE 16 JULY 8PM ROOM 225 ER

[Carol McAlavey]

SPEAKER:

CHRIS HARVEY-HAWES

TOPIC:

STRONG GRAVITATIONAL LENSING FOR COSMOLOGY

Chris is a final year PhD student at UC, working with Professor David Wiltshire on tests of cosmological models and strong gravitational lensing.

Strong gravitational lenses are systems in which the gravitational field of an intermediate galaxy or cluster warps the light coming from a distant object around it, producing multiple images, arcs, or rings as seen by an observer. These systems provide an incredible tool for cosmology as they give insights into the structure of the universe the nature of dark matter and expansion of space.

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