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The Milky Way is bigger than previously thought, since it has a record that has not been counted and that is "huge", about 200 thousand light-years in diameter, according to a book published by "Astronomy & Astrophysics"
Spiral galaxies, such as the Milky Way, are characterized by a thin disk, where most stars, whose size is limited and from of which there are almost no stars, (IAC) in Spain, one of the participants in the study
In the case of the Milky Way, we did not know that there were disco stars at distances greater than twice that of the Sun from the center.
In other words, it was believed that "our" nearest star was located in the middle of the galactic radius, but they are there, and "further, more than three times that distance. Martín López-Corredoira, an IAC researcher and first author of the article, said the Milky Way disk is "huge," about 200,000 (19659002) in the development of research, carried out next to the National Astronomical Observatories of Beijing, China, scientists compared the abundance of metals in the stars in the galactic plane with those of halo (region of space around the galaxies The Researchers came to this conclusion after conducting a statistical badysis of the mapped data of APOGEE and LAMOST, two projects that obtain spectra of stars, or information on their speed and chemical composition.
Using the metal content of the stars of the clues, with the combination of high spectral atlas the quality and distance of objects, it has been proved that there is a considerable fraction of stars beyond where o where the disk of the Milky Way was supposed to finish, explained Carlos Allende, co-author of the publication
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