SIMBAD references

2007ApJ...666..747B - Astrophys. J., 666, 747-756 (2007/September-2)

Searching high-redshift large-scale structures: photometry of four fields around quasar pairs at z ∼ 1.

BORIS N.V., SODRE L.Jr, CYPRIANO E.S., SANTOS W.A., MENDES DE OLIVEIRA C. and WEST M.

Abstract (from CDS):

We have studied the photometric properties of four fields around the high-redshift quasar pairs QP 1310+0007, QP 1355-0032, QP 0110-0219, and QP 0114-3140 at z∼1 with the aim of identifying large-scale structures (galaxy clusters or groups) around them. This sample was observed with the Gemini Multi-Object Spectograph (GMOS) at the Gemini North and South telescopes in the g', r', i', and z' bands, and our photometry is complete to a limiting magnitude of i'∼24 mag (corresponding to ∼M*i'+2 at the redshift of the pairs). Our analysis reveals that QP 0110-0219 shows very strong and QP 1310+0007 and QP 1355-0032 show some evidence for the presence of rich galaxy clusters in direct vicinity of the pairs. On the other hand, QP 0114-3140 could be an isolated pair in a poor environment. This work suggest that z∼1 quasar pairs are excellent tracers of high-density environments, and the same technique may be useful to find clusters at higher redshifts.

Abstract Copyright:

Journal keyword(s): Galaxies: Clusters: General - Galaxies: Distances and Redshifts - Galaxies: High-Redshift - Cosmology: Large-Scale Structure of Universe - Galaxies: Quasars: General - X-Rays: Galaxies: Clusters

Nomenclature: Table 2: [BSC2007] QP JHHMM+DDMM N=4.

Simbad objects: 18

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2020.10.28-07:27:14

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