Infrared counterparts of X-ray galaxies
  Population studies of the extragalactic objects are a major part of the
universe large-scale structure study. Apart from radio, infrared, and visible
wavelength bands, observations and further identification of extragalactic
objects such as galaxies, quasars, blazers, liners, and active star burst
regions are also conducted in the X-ray and gamma bands. In this paper we make
identification and cross-correlate of the infrared and X-ray observational
data, build a distribution of a selected sample sources by types and attempted
to analyze types of the extragalactic objects at distances up to z = 0.1 using
observational data of relevant space observatories.
  Data from a leading X-ray space observatory XMM-Newton were used to compile
the largest catalog of X-ray sources. Current version of XMM SSC (Serendipitous
Source Catalog) contains more than half a million sources. In our previous
works we selected and analyzed a sample of 5021 X-ray galaxies observed by
XMM-Newton. Identification and classification of these sources is essential
next step of the study. In this study we used infrared apparent magnitudes from
WISE catalog of AGN candidates. In 2010 space telescope WISE performed full sky
survey in four infrared bands and detected 747 million sources. WISE catalog of
AGN candidates amounts 4 million of possible extragalactic sources. We built
infrared color-color diagram for our sample of X-ray galaxies and assessed
their types using WISE telescope data. In this study we also analyzed large
scale structure of the universe (distances up to z=0.1). This analysis revealed
Coma galaxy cluster and SDSS Sloan Great Wall. In the further studies we are
planning to investigate the distribution of different types of X-ray galaxies
within the large-scale structures of the Universe.
