Browsing by Author "Raghunathan, Srinivasan"

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    • Environments of strong/ultrastrong, ultraviolet Fe II emitting quasars 
      Clowes, Roger G.; Raghunathan, Srinivasan; Söchting, Ilona K.; Graham, Matthew J.; Campusano Brown, Luis (Oxford University Press, 2013-06)
      We have investigated the strength of ultraviolet (UV) Fe II emission from quasars within the environments of large quasar groups (LQGs) in comparison with quasars elsewhere, for 1.1 ≤ ¯zLQG ≤ 1.7, using the DR7QSO catalogue ...
    • A structure in the early Universe at z similar to 1.3 that exceeds the homogeneity scale of the R-W concordance ... 
      Clowes, Roger G.; Harris, Kathryn A.; Raghunathan, Srinivasan; Campusano Brown, Luis; Söchting, Ilona K.; Graham, Matthew J. (Oxford University Press on behalf of the Royal Astronomical Society, 2013-03)
      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 (volume(1/3)) similar to 500 Mpc (proper ...