A 100-200 Mpc group of quasars

Abstract

We have found evidence for a large, elongated group of at least ten quasars with largest dimension |$\sim 100-200 \,{h}^{-1}$| Mpc at z~ 1.3, in the direction of ESO/SERC field 927, which has the field centre (1950) |$[10^\text{h} 40^\text{m} 00^\text{s}, 05^\circ 00^{\prime} 00^{\prime{}\prime}.]$| There are probably further members that have not yet been observed. The morphology of the group seems to be like a clump, but there might be some sub-grouping on scales |$\sim 20 \,{h}^{-1}$|Mpc.