JAMES WEBB DISCOVERS ZHÚLÓNG, THE MOST DISTANT AND OLD TWIN SISTER IN THE MILKY WAY скачать в хорошем качестве

JAMES WEBB DISCOVERS ZHÚLÓNG, THE MOST DISTANT AND OLD TWIN SISTER IN THE MILKY WAY

📎 SPACE TODAY AT THE THEATER: "ARE WE ALONE?": JUNE 30 | 7:30 PM | ÓPERA ARAME | CURITIBA - PR TICKETS: https://www.sympla.com.br/evento/serg... Astronomers have discovered the most distant and ancient spiral galaxy ever seen, using the James Webb Space Telescope (JWST). This "twin" of the Milky Way existed only 1 billion years after the Big Bang, challenging our theories of galactic evolution. Previously, it was believed that galaxies like ours would take billions of years to form distinct features, such as spiral arms, vast star-forming disks, and central bulges of densely packed stars. However, rather than being the expected chaotic galactic blob, these well-ordered features appear to be present in this galaxy, which is so distant that its light has taken 12.8 billion years to reach us. “We named this galaxy Zhúlóng, which means ‘Torch Dragon’ in Chinese mythology. In the myth, Zhúlóng is a powerful red solar dragon that creates day and night by opening and closing its eyes, symbolizing light and cosmic time,” said team leader Mengyuan Xiao of the University of Geneva (UNIGE) in a statement. “What makes Zhúlóng stand out is how much it resembles the Milky Way in shape, size and stellar mass.” Another similarity between the Milky Way and this early cosmic dragon galaxy is the sizes of their stellar disks and the masses of these regions. Zhúlóng’s disk spans about 60,000 light-years and has a mass 100 billion times that of the Sun. The Milky Way’s disk is slightly wider, at 100,000 light-years across, and has an estimated stellar mass of about 46 billion solar masses. Zhúlóng was discovered in images collected during JWST’s ANORAMIC survey (GO-2514). This wide-area extragalactic program, led by Christina Williams (NOIRLab) and Oesch (UNIGE), exploits a special mode of the $10 billion telescope called “pure parallel,” which allows it to collect high-quality images of one object while also collecting data from other targets. “This allows JWST to map large areas of the sky, which is essential for discovering massive galaxies, as they are incredibly rare,” said Williams. "This discovery highlights the potential of pure parallel programs for discovering rare and distant objects that test models of galaxy formation." In the future, scientists may use JWST and the Atacama Large Millimeter Array (ALMA), a collection of 66 radio telescopes located in the Atacama Desert region of northern Chile, to further investigate the qualities of Zhúlóng. SOURCE: https://www.space.com/the-universe/ja... #JAMESWEBB #ZHULONG #EARLYGALAXIES PRESENTATION: Sérgio Sacani • X: @spacetoday1 • Instagram: @spacetoday1 MARKETING & CONTENT: Beattriz Gonçalves • Instagram: @soubiagoncalves • LinkedIn: /in/beattrizgoncalves PRODUCTION: Gabriela Augusta • Instagram: @gabiaugusta_ EDITING: Alexandre Ziolkowski • Instagram: @thealexandrez PHOTOGRAPHY: Caroline Oliveira • Instagram: @carolineoliveirafotos DESIGNER: Nina Soraya • Instagram: @nina.zayit