Tel Aviv University

Tel Aviv University
Physics Colloquium

Academic Year  2011 - 2012

The colloquium is held at Melamed Hall (Room 6) in the Shenkar Physics Building, every Sunday at 16:10. Light refreshments are served outside Melamed Hall at 15:50. 


Wednesday, December 21, 2011, 14:00

Special Colloquium - Note special date and time!!
"The Nobel Surprise: How Exploding Stars Led to Dark Energy"

Prof. Robert P. Kirshner
Clowes Professor of Science, Harvard University

Guest of The Raymond and Beverly Sackler Harvard-TAU Astrophysics Initiative
Distinguished Lecturer of the Lewiner Institute of Theoretical Physics, Technion

  This year's Nobel Prize in Physics was awarded for the discovery of cosmic acceleration using supernova explosions. This talk will explain why exploding white dwarfs make good distance indicators, show how cosmic acceleration was detected and confirmed, and suggest ways to make more accurate and precise measurements to constrain the nature of the dark energy by making the supernova observations at infrared wavelengths. At present, all the evidence is consistent with dark energy that has the same properties as the cosmological constant that Einstein invented and discarded 80 years ago, but the numerical value of this vacuum energy is exceedingly small.  

Host: Prof. Dan Maoz, x8538
Fall 2011 Schedule

For more information or for directions to Melamed Hall please contact:
Chava Balson  03-6408636

To suggest potential speakers or register feedback contact: Ron Lifshitz  03-6405145.

Sponsored by:   The Raymond and Beverly Sackler School of Physics & Astronomy, The Faculty of Exact Sciences, Tel Aviv University.