Now showing items 1-10 of 80
Biased Cold Dark Matter Theory - Trouble from Rich Clusters
(Univ Chicago Press, 1989-06-15)
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 ...
Virialization in N-Body Models of the Expanding Universe: 1. Isolated Pairs
(Univ Chicago Press, 1985)
The intracluster gas fraction in X-ray clusters: constraints on the clustered mass density
(Blackwell Science Ltd, 1997-12-01)
The mean intracluster gas fraction of X-ray clusters within their hydrostatic regions is derived from recent observational compilations of David, Jones & Forman and White & Fabian. At radii encompassing a mean density 500 ...
The L X – T relation and intracluster gas fractions of X-ray clusters
(Blackwell Science Ltd, 1999-05-21)
We re-examine the X-ray luminosity–temperature relation using a nearly homogeneous data set of 24 clusters selected for statistically accurate temperature measurements and absence of strong cooling flows. The data exhibit ...
The effects of clumping and substructure on intracluster medium mass measurements
(Univ Chicago Press, 1999-07-20)
We examine an ensemble of 48 simulated clusters to determine the effects of small-scale density fluctuations and large-scale substructure on X-ray measurements of the intracluster medium (ICM) mass. We measure rms density ...
Constraints on ω 0 and cluster evolution using the ROSAT log N –log S relation
(Blackwell Science Ltd, 1998-04)
An X-ray size-temperature relation for galaxy clusters: Observation and simulation
(Univ Chicago Press, 1997-12-10)
We show that galaxy clusters conform to a tight relation between X-ray isophotal size R-I and emission-weighted intracluster medium (ICM) temperature [T-X]. The best-fit relation for 41 members of an X-ray flux-limited ...