69 citations · 138 across the 5 of their papers we have counts for
5 papers
Dark energy and decompactification in string gas cosmology
Francesc Ferrer, Syksy Rasanen
We study the stability of extra dimensions in string gas cosmology at late times. Vacuum energy and, interestingly, baryons lead to decompactification after they become dynamically…
TeV Dark Matter detection by Atmospheric Cerenkov Telescopes
Francesc Ferrer
Ground based Atmospheric Cerenkov Telescopes have recently unveiled a TeV gamma-ray signal from the direction of the Galactic Centre. We examine whether these gamma-rays, observed…
511 KeV photons from superconducting cosmic strings
Francesc Ferrer, Tanmay Vachaspati
We show that a tangle of light superconducting strings in the Milky Way could be the source of the observed 511 KeV emission from electron-positron annihilation in the Galactic bul…
Correlated isocurvature perturbations from mixed inflaton-curvaton decay
Francesc Ferrer, Syksy Rasanen, Jussi Valiviita
We study cosmological perturbations in the case that present-day matter consists of a mixture of inflaton and curvaton decay products. We calculate how the curvaton perturbations a…
Looking for dark matter annihilations in dwarf galaxies
F. Ferrer
We calculate the flux of high energy gamma-rays from annihilation of neutralino dark matter in the centre of the Milky Way and the three nearest dwarf spheroidals (Sagittarius, Dra…