We are all made of star stuff and some of that material took a longsighted journey to get here . According to new enquiry , galaxies exchange copious amounts of stuff , and half of the material that make up the whitish Way might have originate in another galax .
research worker from Northwestern University have track down a supercomputer simulation and detect that the intergalactic transferee of material is a major musician when it add up to wandflower getting raw fabric . The study , publish in theMonthly Notices of the Royal Astronomical Society , suggest that strong astronomical steer are responsible for for launching it into infinite .
astronomic winds are generated by supernova explosions and they move at several hundred kilometers per second , so the intergalactic carry-over takes billion of years . The pretending showed that cloth could have travel from up to a million light - year away and that the fabric blend in from the smaller coltsfoot in a system to the bigger ones , like the Milky Way .
“ This study transforms our understanding of how galaxies formed from the Big Bang , ” carbon monoxide - author Professor Claude - André Faucher - Giguère , from the Weinberg College of Arts and Sciences , say in astatement . “ What this new mode implies is that up to one - half of the molecule around us – include in the solar system , on Earth and in each one of us – comes not from our own galaxy but from other extragalactic nebula , up to one million light - years off . ”
The findings from the simulation are passing intriguing and provide a series of discernible prediction . The team plans to cooperate with other astronomers and apply telescope like Hubble to see if intergalactic transfer actually happens and if it matches the expectation from the pretense .
“ Given how much of the matter out of which we form may have come from other galaxies , we could consider ourselves space travelers or extragalactic immigrant , ” bestow Daniel Anglés - Alcázar , from Northwestern ’s astrophysics center , who lead the study . “ It is likely that much of the Milky Way ’s matter was in other wandflower before it was kicked out by a brawny wind , trip across intergalactic space and eventually found its novel home in the Milky Way . ”
Galaxy evolution is a mussy business . Galaxies clash with each other , merge , and throw each other around . Intergalactic transfer of training might presently be study just as important in the making of galaxy .
