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Studying the Warm-Hot Intergalactic Medium in Emission
Yoh Takei, Eugenio Ursino, Enzo Branchini +14
We assess the possibility to detect the warm-hot intergalactic medium (WHIM) in emission and to characterize its physical conditions and spatial distribution through spatially reso…
The impact of spatial fluctuations in the ultra-violet background on intergalactic carbon and silicon
James S. Bolton, Matteo Viel
Spatial inhomogeneities in the spectral shape of the ultra-violet background (UVB) at the tail-end of HeII reionisation are thought to be the primary cause of the large fluctuation…
Minimally Parametric Power Spectrum Reconstruction from the Lyman-alpha Forest
Simeon Bird, Hiranya V. Peiris, Matteo Viel +1
Current results from the Lyman alpha forest assume that the primordial power spectrum of density perturbations follows a simple power law form, with running. We present the first a…
Constraining Primordial Non-Gaussianity with High-Redshift Probes
Jun-Qing Xia, Anna Bonaldi, Carlo Baccigalupi +4
We present an analysis of the constraints on the amplitude of primordial non-Gaussianity of local type described by the dimensionless parameter . These constraints are…
A decline and fall in the future of Italian Astronomy?
Angelo Antonelli, Vincenzo Antonuccio-Delogu, Andrea Baruffolo +89
On May 27th 2010, the Italian astronomical community learned with concern that the National Institute for Astrophysics (INAF) was going to be suppressed, and that its employees wer…
The Impact of Coupled Dark Energy Cosmologies on the High-Redshift Intergalactic Medium
Marco Baldi, Matteo Viel
We present an analysis of high-resolution hydrodynamical N-body simulations of coupled dark energy cosmologies which focusses on the statistical properties of the transmitted Lyman…