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It is very complex to decipher a galaxy in which you are inserted, also considering that distant bright stars resemble weaker stars that are nearby, as this prevents astronomers from feeling deeply.
Despite this, after years of work, a team of researchers from the University in Warsaw managed to develop the most complete 3D map of the Milky Way, published to this day by the journal Science scientist. .
On this occasion, the experts did not attempt to regain their hundreds of billions of stars, but focused on something a little more subtle: the curves, the bumps and the clusters of the Milky Way, indicates the portal of scientific diffusion. Popular Science
This map is considered one of the best measures to date and will be useful to those who are trying to better understand how the galaxy got its current form.
"We hope our article is a very good starting point for further modeling. Dorota Skowron, an astronomer at the University of Warsaw, adds that "our stars are an excellent test bed for checking the reliability of such models."
According to the British channel. BBC, map shows that the Milky Way is "distorted and twisted" and is not flat as previously thought.
"The curve of the galaxy is so steep that if we could observe it from the side, we would see it clearly" Skorwon said.
via Gfycat
"Our results show that the Milky Way is not flat. It is distorted and twisted away from the galactic center. The deformation may have been caused by past interactions with satellite galaxies, intergalactic gas or dark matter (invisible material present in the universe) " said Przemek Mroz, a member of the team OGLE (Optical Gravitational Lens Experiment) of the Las Campanas Observatory Group (LCO) in the Atacama Desert, Chile. Thanks to the latter, most of the stars could be identified.
"The internal structure and history of the Milky Way are still far from understood, in part because it is extremely difficult to measure distances to stars in regions outside our galaxy, " Skowrom said.
According to National Geographic, to be able to construct the map, the rhythmic pulses of 2,431 Cepheid variable stars were measured.
These can be thousands of times brighter than the Sun's, "they switch on and off rhythmically. in a period that is closely related to its intrinsic brightness. "This allowed us to measure these pulses and" unravel the brightness of these stars and then use intrinsic brightness to calculate precise distances. "Thus, for years, researchers have been tracking these impulses through the instrument. OGLE and traced the points that shaped the map.
As the BBC indicates, another 3D map published in February by astronomers from the Chinese Academy of Sciences and Sciences La Macquairie University in Australia has come up with a similar result, and in this way the new map reaffirms what the previous map implied, namely that "the Milky Way does not follow geometries and its structure is more complex than we do. imagined planes "
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