The environments of Ly$\alpha$ blobs I: Wide-field Ly$\alpha$ imaging of TN J1338-1942, a powerful radio galaxy at $z\simeq 4.1$ associated with a giant Ly$\alpha$ nebula

Tomoki Saito, Yuichi Matsuda, Cedric G. Lacey +10

We exploit wide-field Ly$alpha$ imaging with Subaru to probe the environment around TN J1338-1942, a powerful radio galaxy with a >100 kpc Ly$\alpha$ halo at z=4.11. We used a sample of…