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    Supercomputer Simulations tagged posts

    Cosmological Enigma of Milky Way’s Satellite Galaxies Solved

    December 21, 2022, Categories  Astronomy/Space

    Simulation.jpeg
    One of the new high-resolution simulations of the dark matter enveloping the Milky Way and its neighbour, the Andromeda galaxy. The new study shows that earlier, failed attempts to find counterparts of the plane of satellites which surrounds the Milky Way in dark matter simulations was due to a lack of resolution.
    CREDIT
    Till Sawala/Sibelius collaboration

    Astronomers say they have solved an outstanding problem that challenged our understanding of how the universe evolved—the spatial distribution of faint satellite galaxies orbiting the Milky Way.

    These satellite galaxies exhibit a bizarre alignment—they seem to lie on an enormous thin rotating plane—called the “plane of satellites.”

    This seemingly unlikely arrangement had puzzled astronomers for over 50 years, leading many to...

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    Cracking a Mystery of Massive Black Holes and Quasars with Supercomputer Simulations

    August 18, 2021, Categories  Uncategorized

    Distribution of gas across scales, with the gas density increasing from purple to yellow. The top left panel shows a large region containing tens of galaxies (6 million light-years across). Subsequent panels zoom in progressively into the nuclear region of the most massive galaxy and down to the vicinity of the central supermassive black hole. Gas clumps and filaments fall from the inner edge of the central cavity occasionally feeding the black hole. Credit: Anglés-Alcázar et al. 2021, ApJ, 917, 53.
    Distribution of gas across scales, with the gas density increasing from purple to yellow. The top left panel shows a large region containing tens of galaxies (6 million light-years across). Subsequent panels zoom in progressively into the nuclear region of the most massive galaxy and down to the vicinity of the central supermassive black hole. Gas clumps and filaments fall from the inner edge of the central cavity occasionally feeding the black hole.
    (Credit: Anglés-Alcázar et al. 2021, ApJ, 917, 53.)

    Cracking a mystery of massive black holes and quasars with supercomputer simulations. At the center of galaxies, like our own Milky Way, lie massive black holes surrounded by spinning gas...

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