Dynamics of the large-scale matter field / (2004)
Thesis (Ph. D.)--University of Kansas, Physics and Astronomy, 2004.
An estimate of \Omega_m without priors (2003)
Feldman, Hume A., Juszkiewicz, Roman, Ferreira, Pedro, Davis, Marc, Gaztanaga, Enrique, Fry, James N., ...
Using mean relative peculiar velocity measurements for pairs of galaxies, we estimate the cosmological density parameter $\Omega_m$ and the amplitude of density fluctuations $\sigma_8$. Our results...
Optimal Moments for the Analysis of Peculiar Velocity Surveys II: Testing (2003)
Feldman, Hume A., Watkins, Richard, Melott, Adrian L., Chambers, Scott W.
Analyses of peculiar velocity surveys face several challenges, including low signal--to--noise in individual velocity measurements and the presence of small--scale, nonlinear flows. This is the...
Optimal Moments for the Analysis of Peculiar Velocity Surveys (2001)
Watkins, Richard, Feldman, Hume A., Chambers, Scott W., Gorman, Patrick, Melott, Adrian L.
We present a new method for the analysis of peculiar velocity surveys which removes contributions to velocities from small scale, nonlinear velocity modes while retaining information about large...
Recent Dynamical Relaxation of Galaxy Clusters: Evidence for a Low-$\Omega_m$ Universe (2001)
Melott, Adrian L., Chambers, Scott W., Miller, Christopher J.
We argue that there has been substantial evolution in the ellipticity of rich galaxy clusters between 0 < z < 0.1, and suggest that this is additional evidence for a low matter-density Universe.
The Nearest Neighbor Alignment of Cluster X-ray Isophotes (2001)
Chambers, Scott W., Melott, Adrian L., Miller, Christopher J.
We examine the orientations of rich galaxy cluster X-ray isophotes with respect to their rich nearest neighbors using existing samples of Abell cluster position angles measured from {\it Einstein}...
Einstein Cluster Alignments Revisited (2000)
Chambers, Scott W., Melott, Adrian L., Miller, Christopher J.
We have examined whether the major axes of rich galaxy clusters tend to point toward their nearest neighboring cluster. We have used the data of Ulmer, McMillan, and Kowalski, who used position...