630 citations · 6.3k across the 285 of their papers we have counts for
7 papers · 2 filters
Tracing the gas at redshift 1.7-3.5 with the Lyman-alpha forest: the FLO approach
F. Saitta, V. D'Odorico, M. Bruscoli +3
[Abridged] We present FLO (From Lines to Over-densities), a new technique to reconstruct the hydrogen density field for the Lya forest lines observed in high resolution QSO spectra…
An improved measurement of the flux distribution of the Ly-alpha forest in QSO absorption spectra: the effect of continuum fitting, metal contamination and noise properties
T. -S. Kim, J. S. Bolton, M. Viel +2
We have performed an extensive Voigt profile analysis of the neutral hydrogen (HI) and metal absorption present in a sample of 18 high resolution, high signal-to-noise QSO spectra…
Possible evidence for an inverted temperature-density relation in the intergalactic medium from the flux distribution of the Lyman-alpha forest
J. S. Bolton, M. Viel, T. -S. Kim +2
We compare the improved measurement of the Lya forest flux probability distribution at 1.7<z<3.2 presented by Kim et al. (2007) to a large set of hydrodynamical simulations of the…
How cold is cold dark matter? Small scales constraints from the flux power spectrum of the high-redshift Lyman-alpha forest
M. Viel, G. D. Becker, J. S. Bolton +3
We present constraints on the mass of warm dark matter (WDM) particles derived from the Lyman-alpha flux power spectrum of 55 high- resolution HIRES spectra at 2.0 < z < 6.4. From…
Cosmic reionization in a dynamic quintessence cosmology
D. Crociani, M. Viel, L. Moscardini +2
In this paper we investigate the effects that a dynamic dark energy component dominant in the universe at late epochs has on reionization. We follow the evolution of HII regions wi…
Is the Concentration of Dark Matter Halos at Virialization Universal ?
Massimo Ricotti, Andrew Pontzen, Matteo Viel
Several recent studies suggest a correlation between dark matter halo mass and the shape of the density profile. We re-analyze simulations from Ricotti (2003) in which such a corre…