How probable is the Lyman-$\alpha$ damping wing in the spectrum of the redshift z = 5.9896 quasar ULAS J0148+0600?

Fiona Sawyer, James S. Bolton, George D. Becker +5

The shape of the Ly-$\alpha$ transmission in the near zone of the redshift $z=5.9896$ quasar ULAS J0148$+$0600 (hereafter J0148) is consistent with a damping wing arising from an extend…