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Leda 1313424, nicknamed Bullseye, is twice and a half of our Milky Way and has nine episodes – six more than any other known galaxy. | Credit: NASA, Esa, Ayed Pasha (Yale), Peter Van Docum (Yale)
NASA’s Hubble Space Telescope was able to take a great picture of a wise wage like bulls.
“This was a firm discovery,” Ayed Pasha, the main researcher and doctoral student at Yale University in New Haven, Connecticut, said in a statement. “I was looking at a survey of ground photography, and when I saw a galaxy with several clear episodes, it was immediately pulled. I had to stop investigating it.”
In fact, this amazing style was formed 50 million years ago, when a small blue dwarf galaxy (visible in the picture to the center) was immersed through the huge Polsia, which is called Lida 1313424, a galaxy nearly twice the size of the milk .
Galaxy collisions occur frequently in the universe, but researchers highlight the scarcity of one galaxy directly through another center. The blue dwarf galaxy did not leave behind eight “ripples”, or stars -full rings similar to those that were formed when the rocks break the surface of the pond, but they also caused new areas of the formation of stars in LEDA 1313424. This happened as the gas was expelled abroad while passing The galaxy, mixed with dust to form new stars and lighten the rings.
The eight ripples that the Hubble Space Telescope sees in this cosmic scene are the most ever in any galaxy, and the data from the WM KECK Observatory in Hawaii confirmed the ninth. “This was impossible without Hubble,” Pasha said.
Peter C. Van Dockum, a co -author of the new study and professor at Yale University: “We are picking up Bullseye in a very special moment in time.” “There is a very narrow window after affecting when a galaxy has many rings.”
Astronomers had previously discovered at least three episodes in similar collisions. The team also suspects that the tenth ring may be present once, but it has since faded. The researchers estimate that the ring can lie three times further than the widest ring taken in the image of Hubble.
A full -sized version of the Hubble Bullseye Galaxy image. | Credit: NASA, Esa, Ayed Pasha (Yale), Peter Van Docum (Yale)
Gulseye Galaxy, as it is called colloquially, supports the predictions of mathematical models, which indicate that the rings expand out from the collision point. “This theory was developed for the day when someone saw a lot of episodes,” Van Docum said. “It is very enjoyable to confirm this long -term prediction with Bullseye galaxy.”
The researchers believe that the first two episodes in Polisi were formed quickly and spread in wider circles. Subsequent episodes may be formed in a more complex way, as the blue Gloxy Galaxy Birds had a greater effect on the initial rings.
“If we look at the galaxy directly, the episodes will look circular, with rings in the center and gradually became more far away further,” Pasha explained.
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Despite the need for further research, this discovery will help improve modeling, and the team hopes that more galaxies such as bullseye will be found soon.
“Once the NASA’s Roman Grace telescope begins with scientific processes, interesting things will appear more easily,” Van Docum explained. “We will learn how great these amazing events are.”
