The rise of the C IV mass density at z<2.5

Abstract

The cosmic evolution of the metal content of the intergalactic medium puts stringent constraints on the properties of galactic outflows and on the nature of UV background. In this paper, we present a new measure of the redshift evolution of the mass density of C IV, Omega_CIV, in the interval 1.5 < z < 4 based on a sample of more than 1500 C IV lines with column densities 10^{12} < N(CIV) < 10^{15} cm^{-2}. This sample more than doubles the absorption redshift path covered in the range z<2.5 by previous samples. The result shows a significant increase of Omega_CIV towards the lower redshifts at variance with the previously pictured constant behaviour.

Accepted for publication in MNRAS (October 2009). Replaced to match published version

References in corpus (8)

• Cosmological Simulations of Intergalactic Medium Enrichment from Galactic Outflows
• Mass, Metal, and Energy Feedback in Cosmological Simulations
• Deuterium Abundance in the Most Metal-Poor Damped Lyman alpha System: Converging on Omega_baryons
• A downturn in intergalactic CIV as redshift 6 is approached
• Intergalactic CIV absorption at redshifts 5.4 to 6
• Photo-heating and the fate of hard photons during the reionisation of HeII by quasars
• High Redshift Intergalactic C IV Abundance Measurements from the Near-Infrared Spectra of Two z~6 QSOs
• Tracing the gas at redshift 1.7-3.5 with the Lyman-alpha forest: the FLO approach

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