Department of Physics, Engineering Physics & Astronomy

Department of Physics, Engineering Physics & Astronomy
Department of Physics, Engineering Physics & Astronomy

Supernovae and Dark Energy

Prof. Chris Pritchet
University of Victoria

Wednesday, October 4, 2006
3:30 PM @ Stirling A

Abstract:

The CFHT Supernova Legacy Survey (SNLS) uses high-redshift Type Ia Supernovae (SNe Ia) to constrain the nature of the mysterious dark energy that fills the Universe. The first results from the survey (about 10% of the final supernova sample) indicate that that dark energy acts like a pure Einsteinian cosmological constant (equation of state parameter w=-0.97+-0.08). This is the most accurate measurement of w yet achieved. We give an update on the current status of the survey, highlighting recent results on the nature of supernovae and their host galaxies.

Refreshments will be available 15 mins before the talk. Prof. Pritchet would also be happy to meet after the colloquium with any 4th year student who might be interested in graduate studies in Physics & Astronomy at UVic.