55 citations · 101 across the 5 of their papers we have counts for
5 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),…
Constraints on the slope of the dark halo mass function by microlensing observables
V. F. Cardone, R. de Ritis, A. A. Marino
We investigate the dark halo lens mass function (MF) for a wide class of spheroidal non singular isothermal models comparing observed and observable microlensing quantities for MAC…
Detecting planets around stars in nearby galaxies
G. Covone, R. de Ritis, M. Dominik +1
The only way to detect planets around stars at distances of several kpc is by (photometric or astrometric) microlensing observations. In this paper, we show that the capability of…
The effective cosmological constant in higher order gravity theories
S. Capozziello, R. de Ritis, A. A. Marino
An effective time--dependent cosmological constant can be recovered for higher--order theories of gravity by extending to these ones the no--hair conjecture. The results are applie…