LSST: a Complementary Probe of Dark Energy

Abstract

The number of mass clusters and their distribution in redshift are very sensitive to the density of matter Omega_m and the equation of state of dark energy w. Using weak lens gravitational tomography one can detect clusters of dark matter, weigh them, image their projected mass distribution, and determine their 3-D location. The degeneracy curve in the Omega_m - w plane is nearly orthogonal to that from CMB or SN measurements. Thus, a combination of CMB data with weak lens tomography of clusters can yield precision measurements of Omega_m and w, independently of the SN observations. The Large Synoptic Survey Telescope (LSST) will repeatedly survey 30,000 square degrees of the sky in multiple wavelengths. LSST will create a 3-D tomographic assay of mass overdensities back to half the age of the universe by measuring the shear and color-redshift of billions of high redshift galaxies. By simultaneously measuring several functions of cosmic shear and mass cluster abundance, LSST will provide a number of independent constraints on the dark energy density and the equation of state.

9 pages, 6 figures, for Proc. 5th International UCLA Symposium on Sources and Detection of Dark Matter, Marina del Rey, February 2002, ed. D. Cline

References in corpus (1)

• Discovery of a Galaxy Cluster via Weak Lensing

Cited by in corpus (47)

• Dwarf galaxy annihilation and decay emission profiles for dark matter experiments
• Photometric redshift analysis in the Dark Energy Survey Science Verification data
• The Standardized Candle Method for Type II Plateau Supernovae
• First Results On Shear-Selected Clusters From the Deep Lens Survey: Optical Imaging, Spectroscopy, and X-ray Followup
• Probing Cosmology with Weak Lensing Peak Counts
• Bayesian Galaxy Shape Measurement for Weak Lensing Surveys -II. Application to Simulations
• Cosmic Voids and Void Lensing in the Dark Energy Survey Science Verification Data
• Defining a weak lensing experiment in space
• Dark matter annihilation and decay from non-spherical dark halos in the Galactic dwarf satellites
• Dark Energy Tomography
• Galaxy clustering, photometric redshifts and diagnosis of systematics in the DES Science Verification data
• Tracing The Sound Horizon Scale With Photometric Redshift Surveys
• The Limits of Cosmic Shear
• Dark Energy Survey Year 1 Results: Cross-Correlation Redshifts - Methods and Systematics Characterization
• Precise photometric redshifts with a narrow-band filter set: The PAU Survey at the William Herschel Telescope
• Reduced Shear Power Spectrum
• Looking for an extra dimension with tomographic cosmic shear
• Photometric Redshift Requirements for Self-Calibration of Cluster Dark Energy Studies
• Clustering of Photometric Luminous Red Galaxies II: Cosmological Implications from the Baryon Acoustic Scale
• Observational Constraints on Exponential Gravity
• Dark Energy Survey Year 1 Results: Calibration of redMaGiC Redshift Distributions in DES and SDSS from Cross-Correlations
• Investigating Deep Learning Methods for Obtaining Photometric Redshift Estimations from Images
• Dark Matter in $\gamma$ lines: Galactic Center vs dwarf galaxies
• Shear-Selected Clusters From the Deep Lens Survey III: Masses from Weak Lensing
• SDSS Observations of Kuiper Belt Objects: Colors and Variability
• Benchmarking and Scalability of Machine Learning Methods for Photometric Redshift Estimation
• Rotation of galaxies as a signature of cosmic strings in weak lensing surveys
• The Weak Lensing Bispectrum Induced By Gravity
• Prospects for annihilating Dark Matter towards Milky Way's dwarf galaxies by the Cherenkov Telescope Array
• Is the baryon acoustic oscillation peak a cosmological standard ruler?
• Spurious Shear from the Atmosphere in Ground-Based Weak Lensing Observations
• The THU-NAOC Transient Survey: the Performance and the First-year Result
• Galaxy clusters in the SDSS Stripe 82 based on galaxy photometric redshifts
• Surveying the dark side
• The background Friedmannian Hubble constant in relativistic inhomogeneous cosmology and the age of the Universe
• Weak Lensing Skew-Spectrum
• Estimating the Integrated Bispectrum from Weak Lensing Maps
• Morphology of Weak Lensing Convergence Maps
• Photo-z Quality Cuts and their Effect on the Measured Galaxy Clustering
• Weak Lensing Trispectrum and Kurt-Spectra
• Galaxy cluster aperture masses are more robust to baryonic effects than 3D halo masses
• Direct geometrical measurement of the Hubble constant from galaxy parallax: predictions for the Vera C. Rubin Observatory and Nancy Grace Roman Space Telescope
• Does spatial flatness forbid the turnaround epoch of collapsing structures?
• Higher-Order Spectra of Weak Lensing Convergence Maps in Parameterized Theories of Modified Gravity
• Position-Dependent Correlation Function of Weak Lensing Convergence
• A New Estimator for Phase Statistics
• On Weak Lensing Response Functions