Tantalizing Evidence of Reionization Relics in the eBOSS DR16 Ly$\mathbf{\alpha }$ Forest Correlations: a Preference for Early Reionization

Yifan Zheng, Paulo Montero-Camacho, Zheng Cai +1

Cosmic reionization of HI leaves enduring relics in the post-reionization intergalactic medium, potentially influencing the Lyman-$\alpha$ (Ly$\alpha$) forest down to redshifts as low as $z…