123 citations · 378 across the 18 of their papers we have counts for
18 papers
Approximate angular diameter distance in a locally inhomogeneous universe with nonzero cosmological constant
M. Demianski, R. de Ritis, A. A. Marino +1
We discuss the general and approximate angular diameter distance in the Friedman-Robertson-Walker cosmological models with nonzero cosmological constant. We modify the equation for…
Microlensing search towards M31
S. Calchi Novati, G. Iovane, A. A. Marino +26
We present the first results of the analysis of data collected during the 1998-99 observational campaign at the 1.3 meter McGraw-Hill Telescope, towards the Andromeda galaxy (M31),…
Effective cosmological "constant " and quintessence
R. de Ritis, A. A. Marino
In this paper we present exactly solved extended quintessence models; furthermore, through a dynamical effective Q-cosmological "constant", we recover some of the L decaying cases…
The cosmological lens equation in a universe with non zero cosmological constant
M. Demianski, R. de Ritis, A. A. Marino +1
We derive and solve exactly the Dyer-Roeder equation in a Friedman-Robertson-Walker cosmological model with non zero cosmological constant. To take into account non homogeneous dis…
Tracker fields from nonminimally coupled theory
R. de Ritis, A. A. Marino, C. Rubano +1
We extend the concept of quintessence to a flat nonminimally coupled scalar - tensor theories of gravity. By means of Noether's symmetries for the cosmological pointlike Lagrangian…
Slott-Agape Project
AGAPE Collaboration, V. Bozza, S. Calchi Novati +19
SLOTT-AGAPE (Systematic Lensing Observation at Toppo Telescope - Andromeda Gravitational Amplification Pixel Lensing Experiment) is a new collaboration project among international…