Einstein helped found the lens galaxy of the dark matter

Astronomers have discovered a galaxy of dark matter. To find the invisible galaxies, scientists have used the so-called Einstein's lens - a method that allows to find objects by their gravitational effects on the environment. The work of the authors represented in the magazine. Nature. And its description is provided in a press release at the Massachusetts Institute of Technology (MIT).
The existence of dark matter was postulated in 1930 by Swedish astronomer Fritz Zwicky to explain the lack of mass in the universe - visible galaxies ' not enough ' to the celestial bodies behave as astronomers have observed. The title of this substance reflects its main feature: the dark matter is involved in the gravitational interaction and is not involved in the electromagnetic (that is, it can not be observed directly).
Quantitatively, the universe is much more dark matter than the ' normal '. Not long ago, astronomers have hypothesized that one of the types of objects, consisting of the invisible substance, are dwarf satellite galaxies of large star clusters. It is believed that the ' full ' galaxies like the Milky Way formed, attracting and absorbing their tiny neighbors. From this assumption it follows that such large star formation must be surrounded by a large number of small satellites ( in the case of the Milky Way is estimated to be the approximate number of 10,000 ). However, in reality, astronomers have found in the immediate vicinity of the galaxy, only about 30 ' neighbors '. Scientists have suggested that the rest of the galaxy for one reason or another were not able to form stars and are composed of dark matter.
The authors decided to find a new job this invisible companion system JVAS B1938 666, consisting of two galaxies that are on the same line with each other when seen from the Earth. This arrangement allows the use of the method of gravitational lensing, or Einstein's lens. Gravity of massive objects like galaxies appreciably declines path of light coming from more distant objects, and the parameters of this deviation depends on the mass of the deflecting ' lens '. Observing with Keck II telescope in Hawaii system JVAS B1938 666, astronomers found that the system rejects the path of light is not as predicted by theory. Accordingly, the researchers concluded that the existence of a system of satellites of dark matter.
This is the second galaxy, consisting of unobservable substance known to specialists. The first one was 18 times more massive than the present, and it was too big to be a companion galaxy,.