What is a three-dimensional map of galaxies
The rapid development of computer technology has given scientists working in various branches of science, a great new tool. New features have received including astronomers. The computer allowed them to create a unique model of the universe. The observer can see on a great variety of screen space objects in the real world, not only invisible to the naked eye, but even in a powerful telescope.
The basis for creating three-dimensional maps became an American research program "Sloan Digital Sky Survey." Data were collected for creating a map independently two groups of researchers. The spatial arrangement of fluorescent red galaxies has long been known. Astronomers had information on about ten thousands of space objects. The most distant known galaxies then were at a distance of 600 light years from Earth. The computer has allowed to analyze the available data and to establish certain patterns. For the first three-dimensional map of the galaxies was obtained. In fact, it is a 3D- model of the universe. On the creation of the largest to date, three-dimensional map of galaxies, scientists have worked for about ten years. It was the result of the project "Study of the red shift and the view of the sky at a wavelength of two microns." To obtain the data needed two most powerful telescope, installed in different hemispheres. observation point was Arizona, where Lawrence telescope and observatory "Tololo Serra" in Chile. In addition, the used equipment operating in the infrared range. With it, astronomers were able to "see" are in the plane of the Milky Way's cosmic objects outside the visible range. Three-dimensional map of galaxies space can not only see distant cosmic objects, but also provides an opportunity to assess what value have the computer technology for the development of astronomy. This map is not 10 thousand galaxies, and 45. The most distant of them are at a distance of 380 million light-years. galaxy map gives an idea not only of their spatial location, but also about what is in the universe. The main part of it - dark matter. At different locations it has a different density. This density is higher, the larger cluster of galaxies.