Large-Scale Structures around Quasar Pairs at z ˜ 1

Details Large-Scale Structures around Quasar Pairs at z ˜ 1 Large-Scale Structures around Quasar Pairs at z ˜ 1

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009rmxac..35..243s&link_type=abstract

XII Latin American IAU Regional Meeting (Eds. G. Magris, G. Bruzual, & L. Carigi) Revista Mexicana de Astronomía y Astrofísica (

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Galaxies: Clusters, Large-Scale Structure Of Universe, Quasars: General, Techniques: Photometric

Scientific paper

We have used Gemini telescopes to study the photometric properties of four fields around the high-redshift quasar pairs QP1310+0007, QP1355-0032, QP0110-0219, and QP0114-3140z ˜ 1 with the aim of identifying large-scale structures -galaxy clusters or groups- around them. Our analysis reveals that QP0110-0219very strong and QP1310+0007 - QP1355-0032some evidence for the presence of rich galaxy clusters in direct vicinity of the pairs. On the other hand, QP0114-3140be an isolated pair in a poor environment. This work suggest that z ˜ 1 quasar pairs are excellent tracers of high density environments.

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