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High-redshift post-reionization cosmology with 21cm intensity mapping
Andrej Obuljen, Emanuele Castorina, Francisco Villaescusa-Navarro +1
We investigate the possibility of performing cosmological studies in the redshift range through suitable extensions of existing and upcoming radio-telescopes like CHIME,…
Lyman-alpha Constraints on Ultralight Scalar Dark Matter: Implications for the Early and Late Universe
Takeshi Kobayashi, Riccardo Murgia, Andrea De Simone +2
We investigate constraints on scalar dark matter (DM) by analyzing the Lyman-alpha forest, which probes structure formation at medium and small scales, and also by studying its cos…
Imprints of non-standard Dark Energy and Dark Matter Models on the 21cm Intensity Map Power Spectrum
Isabella P. Carucci, Pier-Stefano Corasaniti, Matteo Viel
We study the imprint of non-standard dark energy (DE) and dark matter (DM) models on the 21cm intensity map power spectra from high-redshift neutral hydrogen (HI) gas. To this purp…
The effect of stellar and AGN feedback on the low redshift Lyman- forest in the Sherwood simulation suite
Fahad Nasir, James S. Bolton, Matteo Viel +4
We study the effect of different feedback prescriptions on the properties of the low redshift () Ly forest using a selection of hydrodynamical simulations drawn from t…
Absorption systems at as a probe of the circum galactic medium: a probabilistic approach
C. Mongardi, M. Viel, V. D'Odorico +4
We characterize the properties of the intergalactic medium (IGM) around a sample of galaxies extracted from state-of-the-art hydrodynamical simulations of structure formation in a…
"Non-cold" dark matter at small scales: a general approach
Riccardo Murgia, Alexander Merle, Matteo Viel +2
Structure formation at small cosmological scales provides an important frontier for dark matter (DM) research. Scenarios with small DM particle masses, large momenta or hidden inte…