A Detection of $z$~2.3 Cosmic Voids from 3D Lyman-$\alpha$ Forest Tomography in the COSMOS Field

Alex Krolewski, Khee-Gan Lee, Martin White +10

We present the most distant detection of cosmic voids ($z\sim 2.3$) and the first detection of three-dimensional voids in the Lyman-$\alpha$ forest. We used a 3D tomographic map of the…