Astrophysical Bulletin

, Volume 63, Issue 3, pp 244–258 | Cite as

Classical cosmological tests for galaxies of the Hubble Ultra Deep Field



Images of the Hubble Ultra Deep Field are analyzed to obtain a catalog of galaxies for which the angular sizes, surface brightness, photometric redshifts, and absolute magnitudes are found. The catalog contains a total of about 4000 galaxies identified at a high signal-to-noise ratio, which allows the cosmological relations angular size—redshift and surface brightness-redshift to be analyzed. The parameters of the evolution of linear sizes and surface brightness of distant galaxies in the redshift interval 0.5–6.5 are estimated in terms of a grid of cosmological models with different density parameters (Ω V ; Ω m ). The distribution of photometric redshifts of galaxies is analyzed and possible superlarge inhomogeneities in the radial distribution of galaxies are found with scale lengths as large as 2000 Mpc.

PACS numbers

98.62.Py 98.62.Ve 


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Copyright information

© MAIK Nauka 2008

Authors and Affiliations

  1. 1.Sobolev Astronomical InstituteSt. Petersburg State UniversityStaryj Peterhoff, St. PetersburgRussia

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