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    Radio Galaxies tagged posts

    VLA makes 1st Direct Image of Key Feature of Powerful Radio Galaxies

    April 3, 2019, Categories  Astronomy/Space

    Artist’s conception of the dusty, doughnut-shaped object surrounding the supermassive black hole, disk of material orbiting the black hole, and jets of material ejected by the disk, at the center of a galaxy.
    Credit: Bill Saxton, NRAO/AUI/NSF

    Structure suggested by theorists decades ago. Astronomers used the Karl G. Jansky Very Large Array (VLA) to make the first direct image of a dusty, doughnut-shaped feature surrounding the supermassive black hole at the core of one of the most powerful radio galaxies in the Universe – a feature first postulated by theorists nearly four decades ago as an essential part of such objects.

    The scientists studied Cygnus A, a galaxy some 760 million light-years from Earth. The galaxy harbors a black hole 2...

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