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Title: Precision measurements of large scale structure with future type Ia supernova surveys

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{approx}0.025. With future continuous all-sky surveys like the Large Synoptic Survey Telescope (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}{sub 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.

Authors:
; ;  [1]
  1. Department of Physics and Astronomy, University of Aarhus, Ny Munkegade, DK-8000 Aarhus C (Denmark)
Publication Date:
OSTI Identifier:
22137798
Resource Type:
Journal Article
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2008; Journal Issue: 02; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1475-7516
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ACCURACY; CATALOGS; DISTANCE; GALAXIES; LUMINOSITY; MEASURING METHODS; NONLUMINOUS MATTER; RED SHIFT; SKY; SPECTRA; SUPERNOVAE; TELESCOPES; UNIVERSE; VELOCITY

Citation Formats

Hannestad, Steen, Haugbolle, Troels, and Thomsen, Bjarne. Precision measurements of large scale structure with future type Ia supernova surveys. United States: N. p., 2008. Web. doi:10.1088/1475-7516/2008/02/022.
Hannestad, Steen, Haugbolle, Troels, & Thomsen, Bjarne. Precision measurements of large scale structure with future type Ia supernova surveys. United States. https://doi.org/10.1088/1475-7516/2008/02/022
Hannestad, Steen, Haugbolle, Troels, and Thomsen, Bjarne. 2008. "Precision measurements of large scale structure with future type Ia supernova surveys". United States. https://doi.org/10.1088/1475-7516/2008/02/022.
@article{osti_22137798,
title = {Precision measurements of large scale structure with future type Ia supernova surveys},
author = {Hannestad, Steen and Haugbolle, Troels and Thomsen, Bjarne},
abstractNote = {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{approx}0.025. With future continuous all-sky surveys like the Large Synoptic Survey Telescope (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}{sub 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.},
doi = {10.1088/1475-7516/2008/02/022},
url = {https://www.osti.gov/biblio/22137798}, journal = {Journal of Cosmology and Astroparticle Physics},
issn = {1475-7516},
number = 02,
volume = 2008,
place = {United States},
year = {2008},
month = {2}
}