CANBERRA, Dec. 1, 2020 (Xinhua) In an archive photo provided by the Australian Commonwealth Scientific and Industrial Research Organization (CSIRO) on Dec. 1, 2020, the Australian Square Kilometer Array (ASKAP) telescope in Australia is shown. . Australian scientists have created a map of nearly 3 million galaxies at record speed using a radio telescope. CSIRO revealed on Tuesday that using the ASKAP telescope, researchers were able to map the entire southern sky in 300 hours, creating a new atlas of the universe. (CSIRO/Handout via Xinhua)
SYDNEY, April 9, 2019 (Xinhua) A project led by the Australian Astro 3D Research Center. It states that the age of the galaxy is one of the most important factors driving the orbits of stars within the galaxy. The arrangement of stars becomes more chaotic as the age of the galaxy increases.
The study was recently published in the Monthly Journal of the Royal Astronomical Society. She said an international group of researchers analyzed the observations using the SAMI Galaxy Survey, which covers more than 3,000 galaxies in a variety of environments. It has been found that the age or specific star formation rate (SSFR) is the main variable related to the rotation.
On Monday (April 8), Jesse van de Sande, an astronomer from the University of New South Wales, said: We know that lifespan is affected by the environment. Because if the galaxy is in a very dense environment the star formation process is likely to end. Thus galaxies in denser environments are older on average.
The report notes that the main point in this analysis is that the galaxy is not in a dense environment that would cause its rotation to decrease. But the truth is, they grow up. Young galaxies often contain stars that rotate in an orderly manner. But the motion of stars is more chaotic in ancient galaxies.
Although most previous studies suggest that environment or mass plays a more important role, the new Estro 3D study is useful in improving people's understanding of the chaos within the structure of the galaxy.
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