## 49 Citations

Can brane cosmology with a vanishing Λ explain the observations

- Physics
- 2003

A plethora of models of the universe have been proposed in recent years claiming that the present universe is accelerating, being driven by some hypothetical source with negative pressure…

Measuring the matter energy density and Hubble parameter from large scale structure

- Physics
- 2014

We investigate the method to measure both the present value of the matter energy density contrast and the Hubble parameter directly from the measurement of the linear growth rate which is obtained…

Dark Energy and the Epoch of Galaxy Formation

- Physics
- 2001

The influence of a dark component on the first epoch of galaxy formation is analyzed by using the ages of the three oldest high-redshift galaxies known in the literature. Our results, based on a…

CAN OLD GALAXIES AT HIGH REDSHIFTS AND BARYON ACOUSTIC OSCILLATIONS CONSTRAIN H 0

- Physics
- 2009

A new age--redshift test is proposed in order to constrain H 0 on the basis of the existence of old high-redshift galaxies (OHRGs). In the flat Λ cold dark matter model, the value of H 0 is heavily…

Final Results from the Hubble Space Telescope Key Project to Measure the Hubble Constant

- Physics
- 2000

We present here the final results of the Hubble Space Telescope (HST) Key Project to measure the Hubble constant. We summarize our method, the results, and the uncertainties, tabulate our revised…

Primordial density perturbations with running spectral index: impact on non-linear cosmic structures

- Physics
- 2010

We explore the statistical properties of non-linear cosmic structures in a flat A cold dark matter (ACDM) cosmology in which the index n s of the primordial power spectrum for scalar perturbations is…

Modification of the Newtonian Dynamics in ΛFRW-Cosmology an Alternative Approach to Dark Matter and Dark Energy

- Physics
- 2013

Modified Newtonian Dynamics (MoND) is an empirically motivated modification of Newtonian gravity at largest scales, to explain rotation curves of galaxies, as an alternative to nonbaryonic dark…

Current Cosmological Constraints from a 10 Parameter Cosmic Microwave Background Analysis

- Physics
- 2000

We compute the constraints on a "standard" 10 parameter cold dark matter (CDM) model from the most recent CMB data and other observations, exploring 30 million discrete models and two continuous…

Constraining H0 in general dark energy models from Sunyaev-Zeldovich/X-ray technique and complementary probes

- Physics
- 2012

In accelerating dark energy models, the estimates of the Hubble constant, H0, from Sunyaev-Zel'dovich effect (SZE) and X-ray surface brightness of galaxy clusters may depend on the matter content…

Updated Constraints on the Minimal Supergravity Model

- Physics
- 2002

We provide an up-to-date analysis of the parameter space of the minimal supergravity model (mSUGRA). Novel features include the new central value of the top quark mass, an improved calculation of the…

## References

SHOWING 1-10 OF 203 REFERENCES

The relation of local measures of Hubble's constant to its global value

- Physics
- 1992

The distributions of fractional deviations of local values form global H0 that observers with perfect distance data would find if they surveyed specified volumes of the universe are examined here…

Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant

- Physics
- 1998

We present spectral and photometric observations of 10 Type Ia supernovae (SNe Ia) in the redshift range 0.16 " z " 0.62. The luminosity distances of these objects are determined by methods that…

Expectations for the Difference between Local and Global Measurements of the Hubble Constant

- Physics, Mathematics
- 1998

There are irreducible differences between the Hubble constant measured locally and the global value. They are due to density perturbations, a finite sample volume (cosmic variance), and a finite…

A Lower Limit on the Age of the Universe

- PhysicsScience
- 1996

A detailed numerical study was designed and conducted to estimate the absolute age and the uncertainty in age (with confidence limits) of the oldest globular clusters in our galaxy, and hence to put…

THE AGE OF THE GALACTIC GLOBULAR CLUSTER SYSTEM

- Physics
- 1996

▪ Abstract A careful assessment of current uncertainties in stellar physics (opacities, nuclear reaction rates, equation of state effects, diffusion, rotation, and mass loss), in the chemistry of…

A lower limit of 9.5 Gyr on the age of the Galactic disk from the oldest white dwarf stars

- Physics, GeologyNature
- 1996

WHITE dwarf stars represent the final evolutionary state for most main-sequence stars. They cool slowly enough that even the oldest white dwarfs are still observable in sufficiently deep surveys and…

The birth and early evolution of our universe

- Physics
- 1991

It was in 1986 that we submitted a proposal to organize a Nobel Symposium on the topic "The Birth and Early Evolution of Our Universe", a subject not previously discussed at such a meeting. Our…

Globular Cluster Ages and Cosmology

- Physics
- 1991

The age of a Λ = 0, Friedmann universe is given in Table 1, for various combinations of the Hubble constant H o and the density parameter Ωo. In turn, it is usual to assume the present age of the…

The far field hubble constant

- Physics
- 1995

We used the Hubble Space Telescope to obtain surface brightness fluctuation (SBF) observations of four nearby brightest cluster galaxies (BCGs) to calibrate the BCG Hubble diagram of Lauer & Postman.…

Distance to the Virgo cluster galaxy M100 from Hubble Space Telescope observations of Cepheids

- PhysicsNature
- 1994

Accurate distances to galaxies are critical for determining the present expansion rate of the Universe or Hubble constant (H0). An important step in resolving the current uncertainty in H0 is the…