Results 1 to 6 of 6

Thread: Giant Black Hole's Dust Oddity Surprises

  1. #1

    Giant Black Hole's Dust Oddity Surprises

    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.

    Yahoo news http://news.yahoo.com/giant-black-ho...154751578.html

  2. #2
    Registered Senior Member
    Posts
    67
    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.

  3. #3
    Arguing with a crank - useless AlexG's Avatar
    Posts
    3,815
    Howdy.....Hello....I know of four ways that a bh can exist. [collision,friction,linear acceleration,from (square root of minus one)]
    Nonsense. This is a grouping of words at random.

  4. #4
    Ignorance killed the cat Randwolf's Avatar
    Posts
    3,283
    Quote Originally Posted by JJM View Post
    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.
    OK. Where did you come from?

    Has anyone else noticed an even higher than normal incidence of cranks and woo woo lately?

  5. #5
    Valued Senior Member
    Posts
    10,260
    Quote Originally Posted by Randwolf View Post
    OK. Where did you come from?

    Has anyone else noticed an even higher than normal incidence of cranks and woo woo lately?
    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. Here's hoping it's *very* soon.

  6. #6

    Halloween Preparation

    Though Halloween is very far from, and for many of you like me, you are somewhat of a procrastinator, which means you might have forgot some very important things this year in preparation for this special and important day! I created the below checklist to help ensure that you have everything covered for your Halloween celebration this year, whatever it may entail. Such as: Halloween Costume, Accessories for costume, Child’s Halloween Costume, Pumpkin(s) Carved, Trick or Treat Candy, Trick or Treat Candy Bucket and Safety Items, Indoor and Outdoor Halloween décor/accessories, Halloween Party invitations (if you are hosting a party), Halloween Party Supplies for the party, Food/Beverages/Candy for Party, Halloween Games and Party Favors, While, I am sure that there are a few key items missing on my checklist. You can have you own list refer to mine! With this, you can finish your purchase deals and guaranteed Halloween shopping smoothly, and for your reference, you can pick some of your costume on womencostume.co.uk, it will be your perfect place and save your time and money at the same time. You can breathe easier knowing your procrastination didn’t get the best of you again this year.

Similar Threads

  1. By glaucon in forum Computer Science & Culture
    Last Post: 10-27-04, 01:51 PM
    Replies: 4
  2. By glaucon in forum Computer Science & Culture
    Last Post: 09-14-04, 03:57 AM
    Replies: 2
  3. By Undecided in forum General Science & Technology
    Last Post: 05-11-04, 08:31 PM
    Replies: 0
  4. By thed in forum Astronomy, Exobiology, & Cosmology
    Last Post: 03-22-04, 04:02 AM
    Replies: 8
  5. By Porfiry in forum Hubble
    Last Post: 01-11-01, 07:17 PM
    Replies: 0

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •