Cosmology Seminar

"Cosmology for Beginners, Part 3. Cosmological Distances"

Presented by Paul Stankus, Oak Ridge National Laboratory

Wednesday, June 13, 2007, 11:00 am — Large Seminar Room, Bldg. 510

In this third Introductory lecture we discuss the
difficulties of generalizing the measurement of distance to
cosmological scales, and describe the three working measures
of co-moving, angular and luminosity distances. We then
extend the Hubble relation and show quantitatively how the
landmark 1998 observations of distant supernovae are analyzed to reveal the acceleration of the Universe's expansion.

Hosted by: John Haggerty

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