216 citations · 276 across the 7 of their papers we have counts for
3 papers · 1 filter
Direct Observation of Cosmic Strings via their Strong Gravitational Lensing Effect: I. Predictions for High Resolution Imaging Surveys
Maria Alice Gasparini, Phil Marshall, Tommaso Treu +2
We use current theoretical estimates for the density of long cosmic strings to predict the number of strong gravitational lensing events in astronomical imaging surveys as a functi…
Microlensing modulation by quadrupole variation
Florian Dubath, Maria Alice Gasparini, Ruth Durrer
We investigate microlensing in the case where the lens is considered as an extended object. We use a multipolar expansion of the lens potential and show that the time-varying natur…
Fluctuations of the luminosity distance
Camille Bonvin, Ruth Durrer, M. Alice Gasparini
We derive an expression for the luminosity distance in a perturbed Friedmann universe. We define the correlation function and the power spectrum of the luminosity distance fluctuat…