Method of analysis of the spatial galaxy distribution at gigaparsec scales. I. Initial principles

Details Method of analysis of the spatial galaxy distribution at gigaparsec scales. I. Initial principles Method of analysis of the spatial galaxy distribution at gigaparsec scales. I. Initial principles

2010-04-11

arxiv.org/abs/1004.1801v1

Astrofizika, Vol. 53, No. 1, pp. 105-116 (February 2010)

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

12 pages

Scientific paper

Initial principles of a method of analysis of the luminous matter spatial distribution with sizes about thousands Mpc are presented. The method is based on an analysis of the photometric redshift distribution N(z) in the deep fields with large redshift bins \Deltaz=0.1{\div}0.3. Number density fluctuations in the bins are conditioned by the Poisson's noise, the correlated structures and the systematic errors of the photo-z determination. The method includes covering of a sufficiently large region on the sky by a net of the deep multiband surveys with the sell size about 10^{\circ}x10^{\circ} where individual deep fields have angular size about 10'x10' and may be observed at telescopes having diameters 3-10 meters. The distributions of photo-z within each deep field will give information about the radial extension of the super large structures while a comparison of the individual radial distributions of the net of the deep fields will give information on the tangential extension of the super large structures. A necessary element of the method is an analysis of possible distortion effects related to the methodic of the photo-z determination.

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