Is the age problem resolved?

  title={Is the age problem resolved?},
  author={Ali Akbar Navabi and Nematollah Riazi},
  journal={Journal of Astrophysics and Astronomy},
  • A. Navabi, N. Riazi
  • Published 1 March 2003
  • Physics
  • Journal of Astrophysics and Astronomy
The cosmological, astrophysical, and nucleocosmochronological methods for estimating the age of the universe and the corresponding uncertainties are comparatively studied in the present paper. We are led to the conclusion that the new measurements of cosmological parameters, and the recent estimates of the age of globular clusters have led to the gradual disappearance of the age problem from the arena of modern cosmology. 
The Relic Neutrino Contribution to the Universe Energy Density
The existence of the cosmic neutrino background ) ( B Cυ is predicted by The Big Bang Theory. Its properties are closely related to the ones of the cosmic microwave background (CMB), which is
Unified Field Theory and the Hierarchical Universe
Everything from the smallest particle to the grand universe is constructed by Torque Grids. The grand structure of the universe is made up of infinite hierarchical Torque Grids; this theory falsifies
Quantum Cosmology Explains the General Galaxy-Black Hole Correlation
The symmetric quantum physics of the Universe demonstrates that the massive black holes developing in the post-inflation big-bang prompt the formation of the host galaxies around them. A general


Cosmions and the age problem
Cosmions are suggested as a solution to the solar neutrino problem. Are they also able to lower the globular-cluster ages enough to remove the inconsistencies between the ages of these objects (as
A Lower Limit on the Age of the Universe
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
Chronology of the halo globular cluster system formation
Using up-to-date stellar models and isochrones we determine the age of 25 galactic halo clusters. The clusters are distributed into four groups according to metallicity. We measure the absolute age
Cosmological parameters from large scale structure observations
The possibility of determining cosmological param- eters on the basis of a wide set of observational data including the Abell-ACO cluster power spectrum and mass function, pe- culiar velocities of
The Age of Globular Clusters in Light of Hipparcos: Resolving the Age Problem?
We review five independent techniques that are used to set the distance scale to globular clusters, including subdwarf main-sequence fitting utilizing the recent Hipparcos parallax catalog. These
General constraints on the age and chemical evolution of the Galaxy
The formalism of Schramm and Wasserburg (1970) for determining the mean age of the elements is extended. Model-independent constraints (constraints that are independent of a specific form for the
The HST Key Project on the Extragalactic Distance Scale. XXVIII. Combining the Constraints on the Hubble Constant
Since the launch of the Hubble Space Telescope nine years ago, Cepheid distances to 25 galaxies have been determined for the purpose of calibrating secondary distance indicators. A variety of these
Globular cluster ages determined from the Oosterhoff period−metallicity effect using oxygen-enhanced isochrones. III
The new brighter calibration of absolute luminosities of RR Lyrae stars by ∼ 0.25 mag as a function of metallicity via the Oosterhoff period effect gives a revised age of the Galactic globular
Globular Cluster Ages and the Formation of the Galactic Halo
Main sequence turnoff magnitudes from the recent set of Yale isochrones (Chaboyer et al. 1995) have been combined with a variety of relations for the absolute magnitude of RR Lyr stars (Mv(RR)) to
Distances, Ages, and Epoch of Formation of Globular Clusters
We review the results on distances and absolute ages of Galactic globular clusters (GCs) obtained after the release of the Hipparcos catalog. Several methods aimed at the definition of the Population