Matter density profile shape effects at DUNE

Transparency of overdense plasma with V shape density profile

In this study, we investigate the transparency of an overdense inhomogeneous plasma slab. This anomalous transmission is achieved when the conditions provided for the incident electromagnetic wave to excite coupled surface waves on the both sides of the slab. These conditions require that the homogeneous overdense plasma, or the metallic film, is placed between two dielectric layers. Here, the ...

On the crescentic shape of barchan dune

Aeolian desert sand dunes birth from wind flow and sand bed interactions: depending on wind properties and sand availability, they can adopt several different shapes from huge motionless star dunes to small and fast mobile barchan dunes. These latter have a characteristic crescentic shape and form on hard ground with low sand supply under a monodirectional wind . Here, a 3d barchan model based ...

Profile Shape Parameterization of Jet Electron Temperature and Density Profiles

A Universal Density Profile for Dark and Luminous Matter?

We explore similarities in the luminosity distribution of early type galaxies and the mass profiles of ΛCDM halos. The spatial structure of these systems may be accurately described by a simple law where the logarithmic slope of the projected density is a power law of radius; the Sérsic law. We show that this law provides a significantly better fit than a three-parameter generalization of the N...

Matter Enhanced Neutrino Oscillations with a Realistic Earth Density Profile

Step function approximations of the Earth matter density profile have been used by several authors, see e.g. Refs. [1,2], for the analysis of matter effects in neutrino oscillation experiments. In order to investigate the quality of this approximation, we have developed methods to numerically calculate the transition probability amplitudes in a realistic matter density profile. Calculations wer...