Testing a New Analytic Model for Gravitational Lensing Probabilities
نویسندگان
چکیده
منابع مشابه
Testing a New Analytic Model for Gravitational Lensing Probabilities
We study gravitational lensing with a multiple lens plane approach, proposing a simple analytical model for the probability distribution function (PDF) of the dark matter convergence, κ, for the different lens planes in a given cosmology as a function of redshift and smoothing angle, θ. The model is fixed solely by the variance of κ, which in turn is fixed by the amplitude of the power spectrum...
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Aims. The self-accelerating braneworld model (DGP) seems to provide a simple alternative to the the standard ΛCDM cosmology to explain the current cosmic acceleration, which is strongly indicated by measurements of Type Ia supernovae, as well as other concordant observations. Methods. In this work, we investigate observational constraints on this scenario from gravitational lensing statistics u...
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With the recent elevation of Milgrom’s MOdified Newtonian Dynamics (MOND) to a relativistic theory, the Tensor-Vector-Scalar (TeVeS) theory of Bekenstein, a theory of gravity now exists which does not require dark matter and is consistent with fundamental relativistic principles. However, it remains challenging numerically and analytically to tackle the non-linear equations of TeVeS, which make...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2006
ISSN: 0004-637X,1538-4357
DOI: 10.1086/504032