Constraining the nature of active galactic nuclei through circumgalactic Lya emission at z=2-3

Shiwu Zhang, Zheng Cai, Fabrizio Arrigoni Battaia +8

We present a comprehensive analysis of circumgalactic Lya nebulae around 59 unobscured and 26 obscured quasars at z=2-3, observed with the Keck Cosmic Web Imager (KCWI), to constra…