Precision measurements of large scale structure with future type Ia supernova surveys
arXiv:0705.0979 · doi:10.1088/1475-7516/2008/02/022
Abstract
Type Ia supernovae are currently the best known standard candles at cosmological distances. In addition to providing a powerful probe of dark energy they are an ideal source of information about the peculiar velocity field of the local universe. Even with the very small number of supernovae presently available it has been possible to measure the dipole and quadrupole of the local velocity field out to z~0.025. With future continuous all-sky surveys like the LSST project the luminosity distances of tens of thousands of nearby supernovae will be measured accurately. This will allow for a determination of the local velocity structure of the universe as a function of redshift with unprecedented accuracy, provided the redshifts of the host galaxies are known. Using catalogues of mock surveys we estimate that future low redshift supernova surveys will be able to probe sigma-8 to a precision of roughly 5% at 95% C.L. This is comparable to the precision in future galaxy and weak lensing surveys and with a relatively modest observational effort it will provide a crucial cross-check on future measurements of the matter power spectrum.
18 pages, 9 figures, submitted to JCAP
References in corpus (7)
- New Hubble Space Telescope Discoveries of Type Ia Supernovae at z > 1: Narrowing Constraints on the Early Behavior of Dark Energy
- Observational Constraints on the Nature of the Dark Energy: First Cosmological Results from the ESSENCE Supernova Survey
- Improved Distances to Type Ia Supernovae with Multicolor Light Curve Shapes: MLCS2k2
- The Velocity Field of the Local Universe from Measurements of Type Ia Supernovae
- Power Spectrum Shape from Peculiar Velocity Data
- Precision measurements of large scale structure with future type Ia supernova surveys
- Cosmic Streaming Field at Low Redshift