Publications

This publication presents and validates measurements of Lyman-alpha forest fluctuations in the first data release of the Dark Energy Spectroscopic Instrument (DESI). To accomplish this, the continua of DESI quasars are fitted not only in the Lyman-alpha forest region but also in featureless regions redward of the Lyman-alpha emission line, which are used for calibration. The figure shows the observed flux (black) of a high signal-to-noise DESI quasar. The coloured lines indicate the expected flux in each region (quasar continuum corrected by the mean absorption), for the Lyman-alpha forest region and for the Si IV, C IV, and C III calibration regions. For this publication, we follow the procedures developed for SDSS analyses and introduce the necessary adaptations for the DESI pipeline. In addition, we improve the weighting scheme, resulting in an improvement of more than 20% in the precision of the correlation function measurement.

The Lyman-$\alpha$ forest offers a unique avenue for studying the distribution of matter in the high-redshift Universe and for …

We measure the expansion rate of the Universe at redshift $z = 2.3$ from the anisotropy of Lyman-$\alpha$ (Ly$\alpha$) forest …

The three-dimensional distribution of the Lyman-$\alpha$ (Ly$\alpha$) forest has been extensively used to constrain cosmology through …

When performing cosmological inference, standard analyses of the three-dimensional Lyman-$\alpha$ (Ly$\alpha$) correlation functions …

Observations of the Lyman-$\alpha$ (Ly$\alpha$) forest from spectroscopic surveys such as BOSS/eBOSS and the ongoing Dark Energy …

Using synthetic Lyman-$\alpha$ (Ly$\alpha$) forest data from the Dark Energy Spectroscopic Instrument (DESI) survey, we present a study …

Three-dimensional correlations of the Lyman-$\alpha$ (Ly$\alpha$) forest, as well as cross-correlations between the Ly$\alpha$ forest …

We present \texttt{CoLoRe}, a public software package designed to efficiently generate synthetic realizations of multiple cosmological …

We present the cosmological implications of the final clustering measurements using galaxies, quasars, and Lyman-$\alpha$ (Ly$\alpha$) …