A group of scientists from around the world have published the largest three-dimensional map of the Universe, reports TASS.
Research in the framework of scientific work lasted 6 years. During this time, several hundred scientists from three dozen institutions studied data on several million galaxies and quasars. It made up for many gaps in the history of the universe, according to the Federal Polytechnic school of Lausanne (EPFL).
Scientific research was conducted using the 2.5-meter telescope in the Observatory Apache point, new Mexico (USA). The study was part of a program of "the Sloan digital sky survey" – large-scale studies of multispectral images and spectra of red displacement of galaxies and stars. The initiator of the project "Advanced spectroscopic survey baryon oscillations" became an astrophysicist EPFL Jean-Paul Kneib.
The results of the research are 20 scientific publications. According to EPFL, the map "shows the threads of matter and void, which more accurately define the structure of the Universe when she was only 380 thousand years". Scientists "with a high degree of accuracy found several key cosmological parameters, including the density of the hypothetical dark matter and energy".
On the part of the map that relates to the history of the Universe more than 6 billion years, scientists have discovered the oldest and most red galaxies, and when examining more distant period, they "have focused on the young, blue galaxies"
In addition, astrophysicists found that the Universe a period of more than 11 billion years ago, supermassive black hole has a very bright glow.
According to Jean-Paul Knabe, the goal of the project is to create "the most complete 3D map of the Universe using the new indicators, which are galaxies that are actively forming stars and quasars".
"We know quite well the ancient history of the Universe and the history of its recent expansion, however, there are worrying gaps in knowledge about the stage, separated from us by 11 billion years", – said the head of research, cosmologist from the University of Utah (USA) Kyle Dawson. He also stressed that these studies significantly advanced knowledge in cosmology over the past decade.
Previously, the NASA Hubble telescope has captured the "fluffy" the galaxy NGC 2775. The object is located at a distance of 67 million light years from the Solar system. "Fluffy" sleeves rotating around the center of the galaxy, give dark lines of dust and clouds of gas.
