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Thread: Black hole and "bubble of hot gas"

  1. #1 Black hole and "bubble of hot gas" 
    Forum Junior Steiner101's Avatar
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    This story has me a bit confused.

    I know that matter can be heated around black holes due to compression and gravitational forces, I also know about Gamma ray bursts which is radiation.
    This article mentions "jets of particles" which gives the impression of matter. I thought that black holes could not emit matter, only gamma/x-rays when absorbing matter. Also these jets are constant, like the black hole is ejecting absorbed matter. This contradicts what i thought I knew about black holes.

    Have they made a mistake in this report? In any case, what exactly are they referring to and where is that actual study? Where is this energy coming from?

    Info appreciated....


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  3. #2  
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    The jets of matter originate from the accretion disk around the black hole.


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  4. #3  
    Forum Junior Steiner101's Avatar
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    Yes I am aware about accretion discs but I got the impression that the article were referring to black holes themselves and it was some sort of new discovery:

    Black holes are known to release a prodigious amount of energy when they swallow matter.
    It was thought that most of this energy was released in the form of radiation, predominantly X-rays.
    However, the new findings show that some black holes can spew out at least as much energy, perhaps more, as "jets" of fast-moving particles.
    I guess it is just the way they worded it.
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  5. #4 Re: Black hole and "bubble of hot gas" 
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    Quote Originally Posted by harvestein
    This story has me a bit confused.

    I know that matter can be heated around black holes due to compression and gravitational forces, I also know about Gamma ray bursts which is radiation.
    This article mentions "jets of particles" which gives the impression of matter. I thought that black holes could not emit matter, only gamma/x-rays when absorbing matter. Also these jets are constant, like the black hole is ejecting absorbed matter. This contradicts what i thought I knew about black holes.

    Have they made a mistake in this report? In any case, what exactly are they referring to and where is that actual study? Where is this energy coming from?

    Info appreciated....
    If stars emit electrons, then galaxies would bear a negative charge. Hence, any positive particles throughout the star field would migrate inward, eventually centering a galaxy with a massive wheel of protons that would foster a black hole. Within such a proton wheel free electrons would descend to its rotational axis giving the illusion of such a resulting beam as exuding from the black hole. It seems fair enough to suppose that intense heat might produce positrons that would escape black hole attraction by striking electrons to then lam away as the radiant result. The black hole would call in hardly any electrons due to having fed on enough of them to cancel its pull on them.
    "Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense." --Buddha (563BC-483BC)
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