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    CASTRO code tagged posts

    World’s first 3D Simulations of Superluminous Supernovae

    April 27, 2020, Categories  Astronomy/Space


    The nebula phase of the magnetar-powered super-luminous supernova from our 3D simulation. At the moment, the supernova ejecta has expanded to a size similar to the solar system. Large scale mixing appears at the outer and inner region of ejecta. The resulting light curves and spectra are sensitive to the mixing that depends on stellar structure and the physical properties of magnetar. Credit: Ken Chen

    For most of the 20th century, astronomers have scoured the skies for supernovae—the explosive deaths of massive stars—and their remnants in search of clues about the progenitor, the mechanisms that caused it to explode, and the heavy elements created in the process. In fact, these events create most of the cosmic elements that go on to form new stars, galaxies, and life.

    Because no...

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    Simulations Reveal the Invisible Chaos of Superluminous Supernovae

    February 5, 2017, Categories  Astronomy/Space

    1. Astrophysicist Ken Chen ran 2D simulations with Berkeley Lab's CASTRO code on NERSC's Edison supercomputer to better understand the physical conditions that create superluminious supernova. Credit: Ken Chen, National Astronomical Observatory of Japan 2. Superluminous Supernova simulation in 2D generated with Berkeley Lab developed CASTRO code. (Credit: Ken Chen, National Astronomical Observatory of Japan)

    1. Astrophysicist Ken Chen ran 2D simulations with Berkeley Lab’s CASTRO code on NERSC’s Edison supercomputer to better understand the physical conditions that create superluminious supernova.
    Credit: Ken Chen, National Astronomical Observatory of Japan 2. Superluminous Supernova simulation in 2D generated with Berkeley Lab developed CASTRO code. (Credit: Ken Chen, National Astronomical Observatory of Japan)

    Sightings of a rare breed of superluminous supernovae – stellar explosions that shine 10 to 100 times brighter than normal – are perplexing astronomers. First spotted only in last decade, scientists are confounded by the extraordinary brightness of these events and their explosion mechanisms...

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