Astronomers discover the true shape of the Milky Way and are "deformed"


For years, the Milky Way has been described as a totally flat spiral, but according to astronomers at Macquarie University in Australia and the Chinese Academy of Sciences, our galaxy is more like a "distorted disk."

According to the Astronomy portal, in one study, the researchers observed data from 1,339 pulsating stars obtained through the Wide-Field Infrared Survey Explorer (WISE) space telescope, where there were a large number of Cepheids.

By measuring their distances and making a 3D map by tracing them, the result was a map of the Milky Way very different from the familiar one.

The Macquarie University site in Australia has specified that "the star disk of the Milky Way becomes increasingly deformed and distorted the further away the stars are from the center of the galaxy."

"The warp twist is new," said astronomer and study participant Richard DeGrijs. The researcher explained that this "has been seen in a dozen other galaxies before, but not in ours."

Astronomers have focused on the mapping and are not explaining why, but according to Astronomy, "the authors assume that as the inner disk of stars in the Milky Way rotates, it also pulls the outer disk, distorting the flat spiral."

Licai Deng of the Chinese Academy of Sciences said that "this research provides a crucial up-to-date map for studies of the stellar motions of our galaxy and the origins of the Milky Way disc."

The study was published in the journal Nature Astronomy on Monday.


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