Using Nearby Supernovae for Cosmology

Presented by Stephen Bailey, LPNHE Paris

10 years ago, dark energy was discovered using luminosity distance
measurements of type Ia supernovae. Since then, multiple programs have
refined the cosmological constraints with the addition of high
redshift supernovae. These observations are now at their systematics
limit. Fortunately, many of the largest systematics are addressable
through improved measurements of nearby supernovae. In this talk I
will describe the basics of using supernovae for cosmology and the
Nearby Supernova Factory, a program to directly address the limiting
systematics through the observation and analysis of nearby
supernovae. Using this unique dataset, I will present new methods to
calibrate the luminosity distance of supernovae to improve
cosmological constraints.