The WISSH quasars project - VIII. Outflows and metals in the circum-galactic medium around the hyper-luminous z ∼ 3.6 quasar J1538+08
A. Travascio, L. Zappacosta, S. Cantalupo, E. Piconcelli, F. Arrigoni Battaia, M. Ginolfi, M. Bischetti, G. Vietri, A. Bongiorno, V. D’Odorico, F. Duras, C. Feruglio, C. Vignali and F. Fiore