Now showing items 1-10 of 155
Biased Cold Dark Matter Theory - Trouble from Rich Clusters
(Univ Chicago Press, 1989-06-15)
Two-fluid atmosphere for relativistic stars
(IOP Publishing Ltd, 1999-04-01)
We have extended the Vaidya radiating metric to include both a radiation fluid and a string fluid. This paper expands our brief introduction to extensions of the Schwarzschild vacuum which appeared in 1998 Phys. Rev. D ...
A Morphology-Cosmology Connection for X-Ray-Clusters
(Univ Chicago Press, 1993-12-10)
We employ N-body/three-dimensional gasdynamic simulations of the formation of galaxy clusters to determine whether cluster X-ray morpholgies can be used as cosmological constraints. Confirming the analytic expectations of ...
Holography, diffeomorphisms, and scaling violations in the CMB
(IOP Publishing Ltd, 2004-07-01)
We analyze diffeomorphism invariance in inflationary spacetimes regulated by a boundary at late time. We present the action for quadratic fluctuations in the presence of a boundary, and verify that it is gauge invariant ...
Efficient algorithms for estimating the width of nearly normal distributions
(Elsevier, 1983-06-15)
Typical physics data samples often conform to Gaussian distributions with admixtures of more slowly varying backgrounds. Under such circumstances the standard deviation is known to be a poor statistical measure of distribution ...
Holographic gravitational anomalies
(IOP Publishing Ltd, 2006-01-01)
In the AdS/CFT correspondence one encounters theories that are not invariant under diffeomorphisms. In the boundary theory this is a gravitational anomaly, and can arise in 4k+2 dimensions. In the bulk, there can be ...
Measurement of upper limits for the decay widths of D*+ and D*0
(Elsevier, 1988-10-06)
Upper limits for the decay widths of the D*+ and D*0 mesons have been measured using data from e+e- annihilations at [radical sign]s=29 GeV obtained with the High Resolution Spectrometer at PEP. We find [Gamma]D*+ c2 at ...
On spherically symmetric cosmology in Riemann-Cartan spacetime with spin-density
(IOP Publishing Ltd, 1994-10-01)
We develop the average effective energy-momentum tensor for a spherically symmetric cosmology with randomly oriented spin using the improved energy-momentum tensor in the framework of the self-consistent Einstein-Cartan ...
Granite, a new very high energy gamma-ray telescope
(Elsevier, 1990-03)
A international collaboration of astrophysicists plan to construct a new 10-meter diameter gamma-ray Cerenkov telescope at the Whipple Observatory on Mt. Hopkins in Arizona. By operatin in coincidence with the original ...
Virialization in N-Body Models of the Expanding Universe: 1. Isolated Pairs
(Univ Chicago Press, 1985)