MALS discovery of a rare HI 21-cm absorber at $z\sim 1.35$: origin of the absorbing gas in powerful AGN

P. P. Deka, N. Gupta, H. W. Chen +14

We report a new, rare detection of HI 21-cm absorption associated with a quasar (only six known at $1<z<2$) here towards J2339-5523 at $z_{em}$ = 1.3531, discovered through the Mee…