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pro vyhledávání: '"Goldberg, David P."'
Cosmic flexion, like cosmic shear, is a correlation function whose signal originates from the large-scale structure of the universe. Building on the observational success of cosmic shear, along with the unprecedented quality of large-scale cosmologic
Externí odkaz:
http://arxiv.org/abs/2203.12036
Autor:
Wraga, Joseph, Goldberg, David M.
We calculate the Bayesian evidences for a class of Ekpyrotic universe models, and compare with a model of single field inflation with a Higgs-type potential. Combining parsimony and observational constraints, this gives us a systematic way to evaluat
Externí odkaz:
http://arxiv.org/abs/2201.08844
We perform a flexion based weak gravitational analysis of the first two Hubble Frontier Field clusters: Abell 2744 and MACS 0416. A parametric method for using projected flexion signals as a probe of cluster member mass is described in detail. The no
Externí odkaz:
http://arxiv.org/abs/2108.05453
Autor:
Goldberg, David
We have computed a table of the triangle sides of all congruent numbers less than 10,000, which improves and extends the existing public table. We give some background on properties of the triangle sides, and explain how we computed our table, which
Externí odkaz:
http://arxiv.org/abs/2106.07373
Goldberg & Gott (2008) developed six error measures to rate flat map projections on their verisimilitude to the sphere: Isotropy, Area, Flexion, Skewness, Distances, and Boundary Cuts. The first two depend on the metric of the projection, the next tw
Externí odkaz:
http://arxiv.org/abs/2102.08176
Canonically, elliptical galaxies might be expected to have a perfect rotational symmetry, making them ideal targets for flexion studies - however, this assumption hasn't been tested. We have undertaken an analysis of low and high redshift galaxy cata
Externí odkaz:
http://arxiv.org/abs/2006.03506
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