61 citations · 84 across the 6 of their papers we have counts for
6 papers
The origin of the spectral intensities of cosmic-ray positrons
R. Cowsik, B. Burch, T. Madziwa-Nussinov
AMS instrument aboard the International Space Station is a high precision instrument capable of collecting large statistics on cosmic ray intensities and as such has started making…
Properties of Galactic Dark Matter: Constraints from Astronomical Observations
Benjamin Burch, Ramanath Cowsik
The distributions of normal matter and of dark matter in the Galaxy are coupled to each other as they both move in the common gravitational potential. In order to fully exploit thi…
On the Positron Fraction and Cosmic-Ray Propagation Models
B. Burch, R. Cowsik
The positron fraction observed by PAMELA and other experiments up to ~ 100 GeV is analyzed in terms of models of cosmic-ray propagation. It is shown that generically we expect the…
Analysis of the Positron Fraction and the Spectrum of the Electronic Component in Cosmic Rays
R. Cowsik, B. Burch
Recently, the PAMELA, FERMI, HESS, and ATIC instruments have discovered interesting spectral features in the positron to total electron ratio and in the total electronic component…
Analysis of the Spectral Intensities and Ratios of Electrons and Positrons in Cosmic Rays
R. Cowsik, B. Burch
The observations of the total electronic component and the positron fraction in cosmic rays by the FERMI, HESS, ATIC, and PAMELA instruments are studied with analytical propagation…
On the Positron Fraction and the Spectrum of the Electronic Component in Cosmic Rays
R. Cowsik, B. Burch
The recent observations of the positron fraction in cosmic rays by PAMELA indicate that the fraction of positrons to the total electronic component in cosmic rays initially decreas…