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Showing 2000 · astro-phShow all
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astro-ph2000★ 86 cited
Tree structure of the percolating Universe
Stephane Colombi, Dmitry Pogosyan, Tarun Souradeep
We present a numerical study of topological descriptors of initially Gaussian and scale-free density perturbations evolving via gravitational instability in an expanding universe.…
astro-ph2000★ 50 cited
Cosmological-Model-Parameter Determination from Satellite-Acquired Type Ia and IIP Supernova Data
Silviu Podariu, Peter Nugent, Bharat Ratra
We examine the constraints that satellite-acquired Type Ia and IIP supernova apparent magnitude versus redshift data will place on cosmological model parameters in models with and…
astro-ph2000★ 220 cited
Median Statistics, H_0, and the Accelerating Universe
J. Richard Gott, Michael S. Vogeley, Silviu Podariu +1
(Abridged) We develop median statistics that provide powerful alternatives to chi-squared likelihood methods and require fewer assumptions about the data. Applying median statistic…