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11 papers · 2 filters
Ultra-High Energy Cosmic Rays and Symmetries of Spacetime
O. Bertolami
High energy cosmic rays allow probing phenomena that are inacessible to accelerators. Observation of cosmic rays, presumebly protons, with energies beyond , th…
PSCz vs. 1.2 Jy velocity fields: a Spherical Harmonics Comparison
L. Teodoro
We perform a detailed comparison of the IRAS PSCz and 1.2-Jy spherical harmonic coefficients of the predicted velocity fields in redshift space. The monopole terms predicted from t…
Hydrodynamical simulations of the Sunyaev-Zel'dovich effect: the kinetic effect
Antonio C da Silva, Domingos Barbosa, Andrew R Liddle +1
We use hydrodynamical N-body simulations to study the kinetic Sunyaev-Zel'dovich effect. We construct sets of maps, one square degree in size, in three different cosmological model…
Large Scale Structure and Cosmic Rays revisited
R. Ugoccioni, L. Teodoro, U. Wichoski
We investigate the possibility that ultra high energy cosmic rays (E > 10^19 eV) are related to the distribution of matter on large scales. The large scale structure (LSS) data ste…
Fitting BOOMERANG and MAXIMA-1 data with a Einstein-Yang-Mills Cosmological Model
M. C. Bento, O. Bertolami, P. T. Silva
We analyse the implications of recent Cosmic Microwave Background (CMB) data for a specific cosmological model, based on the higher-dimensional Einstein-Yang-Mills System compactif…
Cosmology from Maxima-1, Boomerang and COBE/DMR CMB Observations
A. H. Jaffe, P. A. R. Ade, A. Balbi +39
Recent results from BOOMERANG-98 and MAXIMA-1, taken together with COBE-DMR, provide consistent and high signal-to-noise measurements of the CMB power spectrum at spherical harmoni…