SCIENCE - BRAZIL / USA

Sun will survive the collision of the milky way

 

with Andromeda

 

Hubble data with simulation shows how shock will affect our cosmic neighborhood

Simulation shows how appears the night sky on Earth early in the merger of the milky way with Andromeda Galaxy, 4 billion years from now Nasa

RIO – Nasa Astronomers used the Hubble space telescope data to simulate a more extreme events that our cosmic neighbourhood will pass, the shock of the milky way with Andromeda Galaxy (M31), expected to happen in a 4 billion years. According to the models, the Solar System and Earth must survive the crash, but probably will be cast to a new region of space.

-Our findings are statistically consistent with a front collision between Andromeda and our Milky Way – Roeland van der Marel said, of the Space Telescope Science Institute (STScI), which manages the Hubble.

The simulation was possible after detailed data analysis on space telescope Andromeda movement. The Galaxy today is approximately 2.5 million light years away, but progresses rapidly toward the milky way due to mutual gravitational attraction. The oyster model still you will need other 2 billion years for the two galaxies will unite completely, leaving behind their formats spirals and becoming a huge elliptical galaxy.

-After almost a century of speculation about the future fate of the Andromeda Galaxy and the milky way, finally we have a clear scenario of how events will unfold over the next few billion years – told Tony Sohn, also of Sangmo STScI.

Although the galaxies into shock, the stars within them are so widely separated from the others that they should not impinge on the meeting. Despite this, they are thrown into new orbits around the new Galactic core and simulations indicate that our Solar system is likely to be released for further away from it than it is currently. To make things even more complicated, however, the Triangulum Galaxy (M33), Andromeda, dwarf companion will join the collision and probably merge to Andromeda-Milky Way Galaxy pair. There is still a small chance of M33 with the milky way collide before Andromeda.

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