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A neural network emulator for the Lyman-α 1D flux power spectrum
The Lyman-$\alpha$ forest offers a unique avenue for studying the distribution of matter in the high-redshift Universe and for …
Laura Cabayol-Garcia, Jonás Chaves-Montero, Andreu Font-Ribera, Christian Pedersen
May 30, 2023
DOI arXiv
A neural network emulator for the Lyman-α 1D flux power spectrum
New constraints on the expansion rate at redshift 2.3 from the Lyman-$α$ forest
We measure the expansion rate of the Universe at redshift $z = 2.3$ from the anisotropy of Lyman-$\alpha$ (Ly$\alpha$) forest …
Andrei Cuceu, Andreu Font-Ribera, Seshadri Nadathur, Benjamin Joachimi, Paul Martini
Sep 28, 2022
DOI arXiv
New constraints on the expansion rate at redshift 2.3 from the Lyman-$α$ forest
The Alcock-Paczyński effect from Lyman-$α$ forest correlations: Analysis validation with synthetic data
The three-dimensional distribution of the Lyman-$\alpha$ (Ly$\alpha$) forest has been extensively used to constrain cosmology through …
Andrei Cuceu, Andreu Font-Ribera, Paul Martini, Benjamin Joachimi, Seshadri Nadathur, James Rich, Alma X. González-Morales, Hélion du Mas des Bourboux, James Farr
Sep 26, 2022
DOI arXiv
The Alcock-Paczyński effect from Lyman-$α$ forest correlations: Analysis validation with synthetic data
Direct cosmological inference from three-dimensional correlations of the Lyman-$α$ forest
When performing cosmological inference, standard analyses of the three-dimensional Lyman-$\alpha$ (Ly$\alpha$) correlation functions …
Francesca Gerardi, Andrei Cuceu, Andreu Font-Ribera, Benjamin Joachimi, Pablo Lemos
Sep 22, 2022
DOI arXiv
Direct cosmological inference from three-dimensional correlations of the Lyman-$α$ forest
Compressing the cosmological information in one-dimensional correlations of the Lyman-$α$ forest
Observations of the Lyman-$\alpha$ (Ly$\alpha$) forest from spectroscopic surveys such as BOSS/eBOSS and the ongoing Dark Energy …
Christian Pedersen, Andreu Font-Ribera, Nickolay Y. Gnedin
Sep 20, 2022
DOI arXiv
Compressing the cosmological information in one-dimensional correlations of the Lyman-$α$ forest
Non-linearities in the Lyman-$α$ forest and in its cross-correlation with dark matter halos
Three-dimensional correlations of the Lyman-$\alpha$ (Ly$\alpha$) forest, as well as cross-correlations between the Ly$\alpha$ forest …
Jahmour J. Givans, Andreu Font-Ribera, Anže Slosar, Louise Seeyave, Christian Pedersen, Keir K. Rogers, Mathias Garny, Diego Blas, Vid Iršič
May 2, 2022
DOI arXiv
Non-linearities in the Lyman-$α$ forest and in its cross-correlation with dark matter halos