Probing Dark Energy with Type Ia Supernovae

Details Probing Dark Energy with Type Ia Supernovae Probing Dark Energy with Type Ia Supernovae

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007idm..conf..609p&link_type=abstract

THE IDENTIFICATION OF DARK MATTER. Proceedings of the Sixth International Workshop. Held 11-16 September 2006 in Rhodes, Greece.

Physics

Cosmology, Supernovae

Scientific paper

The energy density of the universe seems to be dominated by a mysterious "dark-energy" which drives the acceleration of the expansion. This phenomenon was discovered by mapping out the history of cosmic expansion using Type Ia supernovae (SNe Ia) as distance indicators. SNe Ia currently provide one of the best way to characterize the nature of dark energy, by placing tight limits on its equation of state w = p/ρ. Current high-redshift supernova surveys, such as the 5-year Supernova Legacy Survey will deliver ~ 1000 SN Ia detections with well-sampled griz light curves. Using this unprecedented dataset, a statistical precision of about 5% will be obtained on ΩΛ and w. In this contribution, I review the ongoing Type Ia surveys and present the recent constraints obtained on the dark energy equation of state.

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