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Black Holes

Discussion in 'Science & Technology' started by Drone, Sep 24, 2011.

  1. Drone

    Drone

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    [​IMG]

    "What's this?" you may ask. The jet known as PKS 0637-752, a two million light year long structure. Much longer than Milky Way :laugh:

    It looks strikingly similar to the afterburner flow of a fighter jet, except in this case the jet engine is a supermassive black hole and the jet material is moving at nearly the speed of light. Holy cow :eek:

    The more we see the less we know .....

    http://phys.org/news/2012-10-astronomers-million-year-extragalactic-afterburner.html
    techjunkie, qubit, 3870x2 and 2 others say thanks.
  2. 3870x2

    3870x2

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    An immature joke about ones member could be made using this statement.

    Thx for news Drone!
    saknid says thanks.
  3. qubit

    qubit Overclocked quantum bit

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    So, is this the longest member in the known universe then?
  4. james888

    james888

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    :eek: A member with the power of a thousand suns!
    Crunching for Team TPU
  5. btarunr

    btarunr Editor & Senior Moderator Staff Member

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    Theories, theories, and more theories. You'd think that with the amount of money, human, and natural resources world governments spend of defense (against each other, no less), we'd have an NX-01 by now.
  6. Drone

    Drone

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    There's always a bigger member. Black holes seem to love them (I mean relativistic jets) so much :D

    [​IMG]

    But seriously it's amazing that jets can be so big (mega light years long) and fast (with relativistic speeds).

    http://ned.ipac.caltech.edu/level5/Sept02/Mirabel/Mirabel1.html



    ______


    Pic of the day:

    A Black Hole in Medusa's Hair

    [​IMG]


    __________


    Pic of the Day #2

    Brightest X-ray flare ever observed in our galaxy's black hole (Sagittarius A*)

    [​IMG]

    __________

    Pic of the Day #3

    [​IMG]

    The Cartwheel Galaxy, also known as ESO 350-40 has an unusually large number of blackholes along its outer borders giving off X-rays.


    __________

    Video of the day

    Last edited by a moderator: Nov 20, 2013
    qubit says thanks.
  7. Drone

    Drone

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    Wow I've posted so many times here :D I even forgot some of the older news/posts, I'll re-read them now :) It's exciting that scientists discover more and more. Anywho more new stuff:

    Possibly the lowest mass nuclear black hole ever has been identified.

    [​IMG]

    As always scientists noticed inconsistency in their theoretical model. Because they thought that galaxies without bulges are unlikely to host supermassive black holes but NGC 4178 is a bulgeless galaxy. It may suggest that more than one mechanism is at work in forming supermassive black holes. Nothing is certain lol...

    http://phys.org/news/2012-10-revealing-mini-supermassive-black-hole.html
  8. Drone

    Drone

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    Last edited: Apr 5, 2014
  9. james888

    james888

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    So this member is making a big bubble?
    Crunching for Team TPU
  10. Inceptor

    Inceptor

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    Isn't it heartening to know that one of the most massive members of our local supercluster is so inhospitable?
  11. Drone

    Drone

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    [​IMG]

    http://news.discovery.com/space/nustar-spies-a-black-hole-flare-121024.html

    Yeah, even our Galaxy's humble black hole can be active sometimes. It's a waking season. More activity to come. Just wait till 2013 :)
  12. qubit

    qubit Overclocked quantum bit

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    Out-of-proportion black hole is a rare cosmic fossil

    I love the way black holes are always throwing curve balls at us. :)


    New Scientist
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  13. Drone

    Drone

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    ^Thanks for posting, qubit. Today is the day of extremes. The most massive black hole with mass of 17 billion Suns and now scientists found a black hole with the most powerful outflow ever observed.

    Ok, now let's take a look at the numbers lol ....

    That's a helluva outflow!

    That's really impressive.

    qubit says thanks.
  14. Drone

    Drone

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    Scientists found another supermassive blackhole with relativistic jets and stuff! :D

    [yt]nI-JvqdYnX0[/yt]

    That thing looks powerful and heavy.

    qubit says thanks.
  15. Drone

    Drone

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    Astronomers found a stellar-mass black hole. It's about ten times more massive than the Sun. Bright radio emission makes it detectable.

    [​IMG]

    Its companion is a middle-sized, rather than a giant, star.

    Obscuration within our Galaxy makes it difficult to study the disks of these microquasars in the Milky Way, but finding one in a neighboring galaxy means physicists probably can find many more. :)

    Source
  16. Drone

    Drone

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    Angry black hole:

    [​IMG]

    It's amazing that scientists can discover more and more facts about this distant galaxy and its supermassive black hole and gamma-ray emission. But there's still a long way to go ...

    Theorists always expected gamma-ray outbursts occur only in close proximity to a galaxy's central black hole. But this gamma-ray emission originated about 70 ly away from the galaxy's central black hole. Go figure ... *shrugs*


    ScienseDaily





    ____________

    Blazing Black Holes in IC 342


    [​IMG]


    Spiral galaxy IC 342 (Caldwell 5) lies 7 million ly away in the Camelopardalis constellation. The two magenta spots are blazing black holes first detected at lower-energy X-ray wavelengths by NASA's Chandra X-ray Observatory.
    Last edited: Jan 8, 2013
  17. Drone

    Drone

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    Three interesting videos (especially the first one and the third one) about the black holes







    Black Holes: Infographic

    [​IMG]
    Last edited by a moderator: Nov 20, 2013
  18. Drone

    Drone

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    [​IMG]
  19. Drone

    Drone

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    Last edited: Jan 30, 2013
  20. TheMailMan78

    TheMailMan78 Big Member

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    I love all these theories. We can't predict weather patterns here on Earth with 100% accuracy yet we can say how old things are billions of miles away? Please.
  21. 3870x2

    3870x2

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    It is interesting to note we could be blasted away by a black hole blazar at any moment with no warning.
  22. Drone

    Drone

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    Last edited by a moderator: Nov 20, 2013
    qubit says thanks.
  23. Drone

    Drone

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    [​IMG]
  24. qubit

    qubit Overclocked quantum bit

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    Just wondering about something that I've never seen addressed anywhere.

    Since the event horizon is simply the point at which escape velocity is faster than light, would a spaceship with an FTL Alcubierre warp drive like in Star Trek theoretically be able to pass through the event horizon and out the other side. Note that the ship would not go through the centre of the black hole for the obvious reason of the singularity, but if it went in at a shallow angle, could it come out again? Note that for a really big monster black hole, the tidal forces are quiet gentle, even at the event horizon. It's the "little" ones that tear you apart from a great distance.

    Of course, one of the big questions here is that time stops at the event horizon from our perspective. I wonder if a physicist could answer such a question?
  25. Drone

    Drone

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    That "warp drive" stuff is fishy. Even if that happens it seems that Alcubierre warp drive will annihilate the black hole and it shall not pass like Gandalf says. However others say that 'warp drive' concept is promising than ever before. Read here.

    [yt]sgAwyr5Udzw&[/yt]
    lyndonguitar says thanks.

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