Cold gas and a Milky Way-type 2175 Å bump in a metal-rich and highly depleted absorption system

Jingzhe Ma, Paul Caucal, Pasquier Noterdaeme +9

We report the detection of a strong Milky Way-type 2175 Å extinction bump at $z$ = 2.1166 in the quasar spectrum towards SDSS J121143.42+083349.7 from the Sloan Digital Sky Surv…