Importance of supernovae at z > 1.5 to probe dark energy

  title={Importance of supernovae at z > 1.5 to probe dark energy},
  author={Eric V. Linder and Dragan Huterer},
  journal={Physical Review D},
The accelerating expansion of the universe suggests that an unknown component with strongly negative pressure, called dark energy, currently dominates the dynamics of the universe. Such a component makes up ~70% of the energy density of the universe yet has not been predicted by the standard model of particle physics. The best method for exploring the nature of this dark energy is to map the recent expansion history, at which Type Ia supernovae have proved adept. We examine here the depth of… 

Figures from this paper

Probing the evolution of the dark energy density with future supernova surveys

The time dependence of the dark energy density can be an important clue to the nature of dark energy in the universe. We show that future supernova data from dedicated telescopes (such as SNAP), when

Effects of systematic uncertainties on the supernova determination of cosmological parameters

Mapping the recent expansion history of the universe offers the best hope for uncovering the characteristics of the dark energy believed to be responsible for the acceleration of the expansion. In

Dark Energy and Neutrino Masses from Future Measurements of the Expansion History and Growth of Structure

We forecast the expected cosmological constraints from a combination of probes of both the universal expansion rate and matter perturbation growth, in the form of weak lensing tomography, galaxy

Distinguishing among scalar field models of dark energy

We show that various scalar field models of dark energy predict degenerate luminosity distance history of the Universe and thus cannot be distinguished by supernovae measurements alone. In

Exploring the expanding Universe and dark energy using the statefinder diagnostic

The coming few years are likely to witness a dramatic increase in high-quality supernova data as current surveys add more high-redshift supernovae to their inventory and as newer and deeper supernova

Sensitivity and figures of merit for dark energy supernova surveys

Tracking the origin of the accelerating expansion of the Universe remains one of the most challenging research activities today. The final answer will depend on the precision and on the consistency

High-redshift standard candles: predicted cosmological constraints

We investigate whether future measurements of high-redshift standard candles will be a powerful probe of dark energy, when compared to other types of planned dark energy measurements. Active galactic

Probing Dark Energy Using Baryonic Oscillations in the Galaxy Power Spectrum as a Cosmological Ruler

We show that the baryonic oscillations expected in the galaxy power spectrum may be used as a "standard cosmological ruler" to facilitate accurate measurement of the cosmological equation of state.

The First Type Ia Supernovae: An Empirical Approach to Taming Evolutionary Effects in Dark Energy Surveys from SNe Ia at z > 2

Future measurements of the nature of dark energy using Type Ia supernovae will require a precise characterization of systematic sources of error. Evolutionary effects remain the most uncertain



Submitted to Phys.Rev.D.

  • Physics
  • 1994
lν decays, the slope of Isgur-Wise function and |V bc | value in potential quark model Abstract The modification of the naive potential model of the heavy meson is considered on the basis of the

Proc of SPIE

Phys. Rev. Lett

  • Phys. Rev. Lett

͓17͔ w Project: programs.html ͓18͔ A. Riess, talk presented at the ''Cosmological Probes of Dark Energy

  • ͓17͔ w Project: programs.html ͓18͔ A. Riess, talk presented at the ''Cosmological Probes of Dark Energy
  • 2001

Astrophys. J. Astron. J

  • Astrophys. J. Astron. J

Realistic assessment of cosmological parameters from complete and precise surveys in the next decade from the ground (z max ϭ0.7) and space

    talk presented at the " Cosmological Probes of Dark Energy " workshop

    • talk presented at the " Cosmological Probes of Dark Energy " workshop
    • 2001


    • Rev. D 65, 103512
    • 2002

    Astrophys. J

    • Astrophys. J
    • 1999

    Phys. Rev. Lett

    • Phys. Rev. Lett