3 papers
hep-ph2004
Current cosmological bounds on neutrino masses and relativistic relics
Patrick Crotty, Julien Lesgourgues, Sergio Pastor
We combine the most recent observations of large-scale structure (2dF and SDSS galaxy surveys) and cosmic microwave anisotropies (WMAP and ACBAR) to put constraints on flat cosmolo…
astro-ph2003
Bounds on isocurvature perturbations from CMB and LSS data
P. Crotty, J. Garcia-Bellido, J. Lesgourgues +1
We obtain very stringent bounds on the possible cold dark matter, baryon and neutrino isocurvature contributions to the primordial fluctuations in the Universe, using recent cosmic…
astro-ph2003
Does the small CMB quadrupole moment suggest new physics?
James M. Cline, Patrick Crotty, Julien Lesgourgues
Motivated by WMAP's confirmation of an anomalously low value of the quadrupole moment of the CMB temperature fluctuations, we investigate the effects on the CMB of cutting off the…