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B-mode polarization of the CMB from the second-order photon quadrupole
Nicola Bartolo, Sabino Matarrese, Silvia Mollerach +1
We study a new contribution to the polarization of the Cosmic Microwave Background induced at the epoch of recombination by the second-order quadrupole moment of the photon distrib…
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…
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…