3 papers
astro-ph.CO2011
Systematics in lensing reconstruction: Dark matter rings in the sky?
Pier Paolo Ponente, Jose Maria Diego
Non-parametric lensing methods are a useful way of reconstructing the lensing mass of a cluster without making assumptions about the way the mass is distributed in the cluster. The…
astro-ph.CO2011
The contribution of star-forming galaxies to the cosmic radio background
Pier Paolo Ponente, Yago Ascasibar, Jose Maria Diego
Recent measurements of the temperature of the sky in the radio band, combined with literature data, have convincingly shown the existence of a cosmic radio background with an ampli…
astro-ph.CO2010
The cosmological free-free signal from galaxy groups and clusters
P. P. Ponente, J. M. Diego, R. K. Sheth +3
Using analytical models and cosmological N-body simulations, we study the free-free radio emission from ionized gas in clusters and groups of galaxies. The results obtained with th…