149 citations · 205 across the 6 of their papers we have counts for
3 papers · 1 filter
On the relation between Seyfert 2 accretion rate and environment at z < 0.1
Georgina V. Coldwell, Sebastian Gurovich, Jorge Diaz Tello +2
We analyse different properties of the small scale environment of Seyfert 2 for two samples selected according to the accretion rate parameter, R, from the DR7-SDSS survey. We comp…
Environments of Strong / Ultrastrong, Ultraviolet Fe II Emitting Quasars
Roger G. Clowes, Srinivasan Raghunathan, Ilona K. Soechting +2
We have investigated the strength of ultraviolet Fe II emission from quasars within the environments of Large Quasar Groups (LQGs) in comparison with quasars elsewhere, for 1.1 <=…
A structure in the early universe at z ~ 1.3 that exceeds the homogeneity scale of the R-W concordance cosmology
Roger G. Clowes, Kathryn A. Harris, Srinivasan Raghunathan +3
A Large Quasar Group (LQG) of particularly large size and high membership has been identified in the DR7QSO catalogue of the Sloan Digital Sky Survey. It has characteristic size (v…