Presenter Full Name
:
Dr. Phil Marshall
Institution
:
Stanford University
Year & Semester
:
2010 Fall
Presentation Date
:
September 20, 2010
Dr. Phil Marshall of Stanford University will explain how we can perform astronomical calculations using gravitational lenses: these cosmic telescopes are rare, but they allow us to observe the most distant, faintest, and smallest objects; in calibrating their optics we learn the masses of galaxies and clusters, and even the rate of expansion of the Universe. [Available on DVD in the SSU library.]