Half of the milky Way turned out to be extragalactic

Half of the milky Way turned out to be extragalactic

An international team of astronomers found that up to half of matter the milky Way is of extragalactic origin. A study published in the journal Monthly Notices of the Royal Astronomical Society, and briefly about it, reports northwestern University (USA).

“It is likely that most of the matter the milky Way was in other galaxies and traveled across intergalactic space before it was knocked out the powerful wind, and eventually found their new home in the milky Way,” suggested study co-author Daniel angles-Alcazar.

Scientists believe that matter is moved between galaxies at a speed of hundreds of kilometers per second, and filling the milky Way alien substance took several billion years.

The detailed findings of the astronomers came, having on a supercomputer simulation that reproduces the formation of the milky Way. Scientists are primarily interested in the origin of the matter from which the stars appear.