CLAMATO DR2 redshift catalog

This project used Ly{alpha} forest absorption in the spectra of faint star-forming galaxies and quasars at z~2-3 to trace neutral hydrogen in the intergalactic medium. In particular, we use 320 objects over a footprint of ~0.2deg^2^ to reconstruct the absorption field at 2.05<z<2.55 at ~2h^-1^Mpc resolution.

We apply a Wiener filtering technique to the observed data to reconstruct three-dimensional (3D) maps of the field over a volume of 4.1x10^5^h^-3^Mpc^3^. In addition to the filtered flux maps, for the first time we infer the underlying dark matter field through a forward-modeling framework from a joint likelihood of galaxy and Ly{alpha} forest data, finding clear examples of the detailed cosmic web consisting of cosmic voids, sheets, filaments, and nodes.