By Will Dunham
WASHINGTON (Reuters) -The milky road and the adjacent Galaxy in Andromeda Galaxy are currently in space towards each other at about 250,000 miles per hour (400,000 km / h), which puts a potentially in place in the future that will destroy each of them.
But how much this cosmic incident is likely? Although previous research expects to occur approximately 4-4.5 billion years from now, a new study uses modern observation data and adds new variables indicating that the collision is far from certain. It puts the possibility of a collision in the next 5 billion years with less than 2 % and one in 10 billion years to come at about 50 %.
Mergery processes are not like a demolition, as stars and planets disrupt each other, but rather a complex mixture on a huge scale.
Astronomical Physics at the University of Helsinki to Samala, the author of the study published on Monday in the Nature Astrology magazine, said with the structure of both Sawala, the main author of the study that was published on Monday in Nature Nature, with the structure of Sawala, the main author of the study published on Monday in the Nature Astrology magazine, with the destruction of both Sawala, the main author of the study published on Monday in the Nature Astrology magazine, with the structure of both the destruction and the new galaxy with the result of MiG.
“If the integration occurs, it is more likely that 7-8 billion years will happen in the future. But we find that based on the current data, we cannot predict the time of the merger, if this happens at all,” said Sawala.
The galaxies are currently about 2.5 billion light -years from each other. The optical year is the light distance per year, 5.9 trillion mile (9.5 trillion km).
A possible collision in the future, even the Earth is expected to become a completely different type of place. Our planet is expected to become uninterrupted after almost a billion years from now, as the sun is so hot as it will boil the oceans of our planet. The sun is one of many billions of stars in the Milky Way. The total mass of our galaxies is estimated in a spiral form – including its stars and gas between the stars as well as the dark matter, which is an invisible substance that is detected through its gravitational effects – about a trillion twice the mass of the sun.
Andromeda Galaxy has a full shape and mass similar to Milky Way.
The researchers simulated the Milky Way movement for the next 10 billion years using updated data from Gaia, Hubble Space and various ground telescopes, as well as the revenue galaxy estimates.
Other nearby galaxies are expected to be whether the collision is happening. Previous research approved the gravitational effect of the triangular galaxy, which is also called Messenger 33 or M33, which is about half the size of the Milky Way and Andromeda, but it looked at the large Magellanic cloud, which is a smaller satellite galaxy than the Milky Way, as this study does.
Senala said: “We find that if M33 is added only to a dual-body system, the opportunity to integrate Way-Way-Andromeda is actually increasing, but the inclusion of the large majestic cloud has an opposite effect,” Senala said.
The researchers concluded that the merger between the Milky Way and the Great Magilant Cloud is almost certain during the next billions, long before a possible collision with Andromeda.
One of the variations worth noting between the Milky Way and Andromeda is the mass of super black holes in its centers. The Milky Way A*or SGR A*Sag is about 4 million times the mass of the sun. Its counterpart in Andromeda is about 100 million sun masses.
“It is unlikely to collide with the collision between the stars, but the superior black holes will be drowned in the middle of the newly formed galaxy, as it will eventually merge,” said Swagala.
Galaxy merger occurred from the early stages of the universe and is especially common in the regions of the universe where galaxies are assembled together.
“In the early universe, Galaxy mergers were more frequent, so the first merger had occurred shortly after the formation of the first galaxies,” said Sawala.
“Simple merger operations – with much smaller galaxies – are repeatedly. In fact, the Milky Way road is currently integrating with many dwarf galaxies,” said Sawatala.
(Participated in Will Doneham reports; edited by Sandra Maller)
