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The Goldilocks problem of the quasar contribution to reionization
Enrico Garaldi, Michele Compostella, Cristiano Porciani
The detection of an unexpectedly large number of faint candidate quasars (QSO) at has motivated Madau and Haardt to investigate a reionization scenario in which activ…
Forecasts on dark energy from the X-ray cluster survey with eROSITA: constraints from counts and clustering
Annalisa Pillepich, Thomas H. Reiprich, Cristiano Porciani +2
We forecast the potential of the forthcoming X-ray galaxy-cluster survey with eROSITA to constrain dark-energy models. We focus on spatially-flat cosmological scenarios with either…
Cosmological information in the redshift-space bispectrum
Victoria Yankelevich, Cristiano Porciani
We use the Fisher-matrix formalism to investigate whether the galaxy bispectrum in redshift space, , contains additional cosmological information with respect to the power spect…