Correlation function of quasars in real and redshift space from the Sloan Digital Sky Survey Data Release 7

Details Correlation function of quasars in real and redshift space from the Sloan Digital Sky Survey Data Release 7 Correlation function of quasars in real and redshift space from the Sloan Digital Sky Survey Data Release 7

2010-03-16

arxiv.org/abs/1003.3214v3

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

15 pages, 17 figures, online published in MNRAS; final version to match the published version

Scientific paper

10.1111/j.1365-2966.2010.17411.x

We analyze the quasar two-point correlation function (2pCF) within the redshift interval $0.810\,h^{-1}$ Mpc the parameter describing the large-scale infall to density inhomogeneities is $\beta=0.63\pm0.10$ with the linear bias $b=1.44\pm0.22$ that marginally (within 2$\sigma$) agrees with the linear theory of cosmological perturbations. We discuss possibilities to obtain a statistical estimate of the random component of quasars velocities (different from the large-scale infall). We note rather slight dependence of quasars velocity dispersion upon the 2pCF parameters in the region $r<2$ Mpc.

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