Complementary Measures of the Mass Density and Cosmological Constant
arXiv:astro-ph/9802295 · doi:10.1086/306278
Abstract
The distance-redshift relation depends on the amount of matter of each type in the universe. Measurements at different redshifts constrain differing combinations of these matter densities and thus may be used in combination to constrain each separately. The combination of Omega_0 and Omega_Lambda measured in supernovae at z<1 is almost orthogonal to the combination probed by the location of features in the cosmic microwave background (CMB) anisotropy spectrum. We analyze the current combined data set in this framework, showing that the regions preferred by the Supernova and CMB measurements are compatible. We quantify the favoured region. We also discuss models in which the matter density in the universe is augmented by a smooth component to give critical density. These models, by construction and in contrast, are not strongly constrained by the combination of the data sets.
10 pages, 4 figures, minor changes to reflect version accepted in ApJ. New SN data included. Minor typos fixed
References in corpus (4)
Cited by in corpus (62)
- Measurements of Omega and Lambda from 42 High-Redshift Supernovae
- Cosmological parameters from SDSS and WMAP
- The Case for a Positive Cosmological Lambda-term
- The Cosmological Constant
- Observational Constraints on the Nature of the Dark Energy: First Cosmological Results from the ESSENCE Supernova Survey
- BVRI Light Curves for 22 Type Ia Supernovae
- Constraining dark energy with SNe Ia and large-scale structure
- Constraints on Cosmological Parameters from Future Galaxy Cluster Surveys
- Cosmic Confusion: Degeneracies among Cosmological Parameters Derived from Measurements of Microwave Background Anisotropies
- Reconstructing the Cosmic Equation of State from Supernova distances
- Constraining the equation of state of the Universe from Distant Type Ia Supernovae and Cosmic Microwave Background Anisotropies
- The Type Ia Supernova 1998bu in M96 and the Hubble Constant
- Dynamical dark energy: Current constraints and forecasts
- Solving the Coincidence Problem: Tracking Oscillating Energy
- Constraints on the Progenitors of SNeIa & Implications for the Cosmological Equation of State
- Implications for relic neutralinos of the theoretical uncertainties in the neutralino-nucleon cross-section
- Resolving the Cosmological Missing Energy Problem
- The Cosmic Microwave Background and Particle Physics
- Towards a refined cosmic concordance model: joint 11-parameter constraints from CMB and large-scale structure
- Extending the DAMA annual-modulation region by inclusion of the uncertainties in the astrophysical velocities
- Cosmological Limits on the Neutrino Mass from the Lya Forest
- Current cosmological constraints from a 10 parameter CMB analysis
- Dark Energy and the CMB
- New CMB constraints on the cosmic matter budget: trouble for nucleosynthesis?
- Future Galaxy Cluster Surveys: The Effect of Theory Uncertainty on Constraining Cosmological Parameters
- Constraints on Omega_Lambda and Omega_m from Distant Type 1a Supernovae and Cosmic Microwave Background Anisotropies
- Measuring Time-Dependence of Dark Energy Density from Type Ia Supernova Data
- Observationally Determining the Properties of Dark Matter
- The MSSM invisible Higgs in the light of dark matter and g-2
- A comparison of cosmological Boltzmann codes: are we ready for high precision cosmology?
- Measuring the metric: a parametrized post-Friedmanian approach to the cosmic dark energy problem
- A universal probability distribution function for weak-lensing amplification
- Probing Dark Energy with Supernovae: Exploiting Complementarity with the Cosmic Microwave Background
- Cosmological constraints from current CMB and SN 1a data: a brute force 8 parameter analysis
- Evidence for a Positive Cosmological Constant from Flows of Galaxies and Distant Supernovae
- Compatibility of the new DAMA/NaI data on an annual modulation effect in WIMP direct search with a relic neutralino in supergravity schemes
- Constraining the Cosmological Parameters using Strong Lensing
- HII Galaxies as deep cosmological probes
- Dark energy and cosmic microwave background bispectrum
- Gravitational lensing of cosmic microwave background anisotropies and cosmological parameter estimation
- New Constraints from High Redshift Supernovae and Lensing Statistics upon Scalar Field Cosmologies
- On Precision Measurement of the Mean Curvature
- Cosmological constraints from lensing statistics and supernovae on the cosmic equation of state
- Neutralino properties in the light of a further indication of an annual modulation effect in WIMP direct search
- Update of the direct detection of dark matter and the role of the nuclear spin
- Improved Treatment of Cosmic Microwave Background Fluctuations Induced by a Late-decaying Massive Neutrino
- Unbiased Estimate of Dark Energy Density from Type Ia Supernova Data
- Combining the data of annual modulation effect in WIMP direct detection with measurements of WIMP indirect searches
- The Cosmic Microwave Background for a Nearly Flat Compact Hyperbolic Universe
- Cosmological parameters from cluster abundances, CMB and IRAS
- SUSY Higgs at the LHC: Effects of light charginos and neutralinos
- A Lower Limit on Omega-Lambda Using Gravitational Lensing in the Hubble Deep Field
- Galaxy Clustering and Dark Energy
- Decaying Dark Energy in Higher-Dimensional Gravity
- Constraints in Cosmological Parameter Space from the Sunyaev-Zel'dovich Effect and Thermal Bremsstrahlung
- How Sensitive Are Weak Lensing Statistics to Dark Energy Content?
- Dark energy and supermassive black holes
- Some Dynamical Effects of the Cosmological Constant
- What have we already learned from the CMB?
- Dynamical System Analysis of Quintessence Models with Exponential Potential -- Revisited
- Gravitational Lensing Limits on the Average Redshift of Submillimeter Sources
- Cosmic Magnetic Fields