3 papers
astro-ph1997
The stochastic gravitational-wave background produced by non-linear cosmological perturbations
Sabino Matarrese, Silvia Mollerach
The cosmological stochastic gravitational-wave background produced by the mildly non-linear evolution of density fluctuations is analyzed, in the frame of an Einstein-de Sitter mod…
gr-qc1996
On Relativistic Perturbations of Second and Higher Order
M. Bruni, S. Matarrese, S. Mollerach +1
We present the results of a study of the gauge dependence of spacetime perturbations. In particular, we consider gauge invariance in general, we give a generating formula for gauge…
astro-ph1994
Is the halo responsible for the microlensing events?
E. Roulet, S. Mollerach, G. F. Giudice
We discuss whether the astrophysical objects responsible for the recently reported microlensing events of sources in the Large Magellanic Cloud can be identified as the brown dwarf…