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    supermassive black holes tagged posts

    Supersonic Gas Streams left over from the Big Bang drive Massive Black Hole Formation

    October 1, 2017, Categories  Astronomy/Space

    These are projected density distributions of dark matter (background and top panel) and gas (bottom three panels) components when the massive star forms. The stellar cradle is extremely assymmetry as a wide wedge-shaped structure (middle panel) due to the initial supersonic gas motions left over from the Big Bang. The circle in the right panel indicates the gravitationally unstable region with mass of 26,000 solar-masses. Credit: Shingo Hirano

    These are projected density distributions of dark matter (background and top panel) and gas (bottom three panels) components when the massive star forms. The stellar cradle is extremely assymmetry as a wide wedge-shaped structure (middle panel) due to the initial supersonic gas motions left over from the Big Bang. The circle in the right panel indicates the gravitationally unstable region with mass of 26,000 solar-masses. Credit: Shingo Hirano

    An international team has successfully used a supercomputer simulation to recreate the formation of a massive black hole from supersonic gas streams left over from the Big Bang. Their study shows this black hole could be the source of the birth and development of the largest and oldest supermassive black holes recorded in our Universe...

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    When Radio Galaxies Collide, Supermassive Black Holes form Tightly Bound Pairs

    September 20, 2017, Categories  Astronomy/Space

    NGC 7674, seen just above the center, is a luminous spiral galaxy with a powerful active nucleus. Credit: NASA, ESA, the Hubble Heritage Team

    NGC 7674, seen just above the center, is a luminous spiral galaxy with a powerful active nucleus. Credit: NASA, ESA, the Hubble Heritage Team

    A study using multiple radio telescopes confirms that supermassive black holes found in the centers of galaxies can form gravitationally bound pairs when galaxies merge. “The dual black hole we found has the smallest separation of any so far detected through direct imaging,” said David Merritt, professor of physics at Rochester Institute of Technology The supermassive black holes are located in the spiral galaxy NGC 7674, ~400 million light years from earth, and are separated by a distance less than one light year...

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    Supermassive black holes feed on Cosmic Jellyfish

    August 17, 2017, Categories  Astronomy/Space

    Observations of 'Jellyfish galaxies' with ESO's Very Large Telescope have revealed a previously unknown way to fuel supermassive black holes. It seems the mechanism that produces the tentacles of gas and newborn stars that give these galaxies their nickname also makes it possible for the gas to reach the central regions of the galaxies, feeding the black hole that lurks in each of them and causing it to shine brilliantly. This picture of one of the galaxies, nicknamed JO204, from the MUSE instrument on ESO's Very Large Telescope in Chile, shows clearly how material is streaming out of the galaxy in long tendrils to the lower-left. Red shows the glow from ionised hydrogen gas and the whiter regions are where most of the stars in the galaxy are located. Some more distant galaxies are also visible. Credit: ESO/GASP collaboration; CC-BY; Creative Commons Attribution 4.0 International License

    Observations of ‘Jellyfish galaxies’ with ESO’s Very Large Telescope have revealed a previously unknown way to fuel supermassive black holes. It seems the mechanism that produces the tentacles of gas and newborn stars that give these galaxies their nickname also makes it possible for the gas to reach the central regions of the galaxies, feeding the black hole that lurks in each of them and causing it to shine brilliantly. This picture of one of the galaxies, nicknamed JO204, from the MUSE instrument on ESO’s Very Large Telescope in Chile, shows clearly how material is streaming out of the galaxy in long tendrils to the lower-left. Red shows the glow from ionised hydrogen gas and the whiter regions are where most of the stars in the galaxy are located...

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    Breaking the Supermassive Black Hole Speed limit

    March 22, 2017, Categories  Astronomy/Space

    This is a quasar growing under intense accretion streams. Credit: Los Alamos National Laboratory

    This is a quasar growing under intense accretion streams.
    Credit: Los Alamos National Laboratory

    A new computer simulation helps explain the existence of puzzling supermassive black holes observed in the early universe. The simulation is based on a computer code used to understand the coupling of radiation and certain materials. “Supermassive black holes have a speed limit that governs how fast and how large they can grow,” said Joseph Smidt of the Theoretical Design Division at Los Alamos National Laboratory, “The relatively recent discovery of supermassive black holes in the early

    development of the universe raised a fundamental question, how did they get so big so fast?”

    Using computer codes developed at Los Alamos for modeling the interaction of matter and radiation related to the Lab’s...

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