Giant Black Hole's Dust Oddity Surprises

Discussion in 'Astronomy, Exobiology, & Cosmology' started by arauca, Jun 20, 2013.

  1. arauca Banned Banned

    The most detailed observations to date of the material surrounding a gigantic black hole have surprised scientists, who say what they see conflicts with common theories about these powerful objects.

    Astronomers used the European Southern Observatory's Very Large Telescope Interferometer in Chile to observe the dust around the supermassive black hole at the center of the NGC 3783 galaxy, which lies tens of millions of light-years awayin the constellation Centaurus. The black hole, like many at the centers of galaxies, is gorging on a feast of mass that's fallen toward it from the surrounding area. As the dust falls in, it releases powerful radiation that can be spotted from across the universe.

    When observing NGC 3783's center, the researchers expected to find almost all of the dust in the shape of a doughnut orbiting the black hole, but instead found significant amounts of material above and below the doughnut, or torus, shape. [Images: How Magnetic Fields Shape Black Holes]

    The dust inside the doughnut is hot, reaching temperatures of 1,300 to 1,800 degrees Fahrenheit (700 to 1,000 degrees Celsius), but the dust that's been blown away has cooled down, the astronomers reported. A paper detailing the findings was published today (June 20) in the Astrophysical Journal by lead author Sebastian Hönig of the University of California, Santa Barbara and Christian-Albrechts-Universität zu Kiel in Germany, and his colleagues.

    These observations suggest that the intense radiation produced when black holes feed on surrounding material also pushes some of this material outward. The discovery could lead to a "paradigm shift" in the understanding of how active supermassive black holes like this operate, scientists with the European Southern Observatory wrote in a statement.

    "This is the first time we’ve been able to combine detailed mid-infrared observations of the cool, room-temperature dust around an AGN with similarly detailed observations of the very hot dust," Hönig said in a statement.

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  3. JJM Registered Senior Member

    Howdy.....Hello....I know of four ways that a bh can exist. [collision,friction,linear acceleration,from (square root of minus one)]. People may not understand that, that's okay. Impact momentum spheroid is it's proper name. It may take a long time before any understand it. Just know that a galaxy is structural geometry which extends in bond 90% more, than mass in visible light.
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  5. AlexG Like nailing Jello to a tree Valued Senior Member

    Nonsense. This is a grouping of words at random.
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  7. Randwolf Ignorance killed the cat Valued Senior Member

    OK. Where did you come from?

    Has anyone else noticed an even higher than normal incidence of cranks and woo woo lately?
  8. Read-Only Valued Senior Member

    Well, they come and they go. Sometimes the arrive more frequently than at other times. This particular one, JJM, and especially one who calls himself Magical Realist are WAY overdue to leave - one way or another.

    Please Register or Log in to view the hidden image!

    Here's hoping it's *very* soon.
  9. emilylovelingeries Registered Member

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