Exploring Dark Energy with SNAP

Abstract

The accelerating expansion of the Universe is one of the most surprising and potentially profound discoveries of modern cosmology. Measuring the acceleration well enough to meaningfully constrain interesting physical models requires improvements an order of magnitude beyond on-going and near-term experiments. The Supernova/Acceleration Probe (SNAP) has been conceived as a powerful yet simple experiment to use Type Ia supernovae and weak gravitational lensing to reach this level of accuracy. As fundamentally different causes for the acceleration map into very small differences in observational parameters for all relevant cosmological methods, control of systematics is especially important and so has been built into the SNAP mission design from the very beginning.

contribution to Wide-Field Imaging from Space conference proceedings

References in corpus (7)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• Cosmological Results from High-z Supernovae
• New Constraints on ${\Omega }_M$, ${\Omega }_{\Lambda }$, and w from an Independent Set of Eleven High-Redshift Supernovae Observed with HST
• Effects of Systematic Uncertainties on the Supernova Determination of Cosmological Parameters
• The Hubble Diagram of Type Ia Supernovae as a Function of Host Galaxy Morphology
• Dark Energy Constraints from Weak Lensing Cross-Correlation Cosmography
• Identification of Type Ia Supernovae at Redshift 1.3 and Beyond with the Advanced Camera for Surveys on HST

Cited by in corpus (9)

• The Carnegie Supernova Project: The Low-Redshift Survey
• Correlated Fluctuations in Luminosity Distance and the (Surprising) Importance of Peculiar Motion in Supernova Surveys
• Verifying the Cosmological Utility of Type Ia Supernovae: Implications of a Dispersion in the Ultraviolet Spectra
• Cosmological Constraints from Type Ia Supernovae Peculiar Velocity Measurements
• Complementarity of Weak Lensing and Peculiar Velocity Measurements in Testing General Relativity
• Learning from the Scatter in Type Ia Supernovae
• The First Type Ia Supernovae: An Empirical Approach to Taming Evolutionary Effects In Dark Energy Surveys from SNe Ia at z>2
• SCP06F6: A carbon-rich extragalactic transient at redshift z~0.14?
• An optimal basis system for cosmology: data analysis and new parameterisation