Cosmological-Scale Lyman-alpha Forest Absorption Around Galaxies and AGN Probed with the HETDEX and SDSS Spectroscopic Data

Dongsheng Sun, Ken Mawatari, Masami Ouchi +12

We present cosmological-scale 3-dimensional (3D) neutral hydrogen ({\sc Hi}) tomographic maps at $z=2-3$ over a total of 837 deg${}^2$ in two blank fields that are developed with Ly$…