Gravitational Lensing Effect, A Galaxy passing across a BLACK HOLE


Gravitational Lensing Impact, A Galaxy passing throughout a GREAT VOID


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14 Comments

  1. Why doesn’t the galaxy get sucked into the black hole? If the answer is that some of it does, is the galaxy just wrecked after passing around the black hole?

  2. So how much of the mass would actually be consumed by the black hole? What happens to this mass? Is there a “floor” or “ground” to a black hole? I’m super curious.

  3. It’s a little confusing looking at it like this with only some of the star’s rays being shown. I’d like to see it show rays coming out in all directions so you could see that seeing behind the black hole isn’t what’s happening but light that would have gone just outside the event horizon is pulled towards you. Looking at just two rays in arches made me think they were pushed out around the sun then back towards you.

    I think I failed at being concise with what I’m trying to say.

  4. So, FWIW nothing is really to scale here. What you’re seeing is a galaxy that has a black hole go through it (though you’re at rest relative to the black hole, not the galaxy).

    Black holes don’t get that big, nor galaxies that small. Really what you are seeing is just an example of how light is distorted in the presence of strong gravitational effects. As the galaxy goes across the black hole, you see the top and the bottom of the back half of the galaxy simultaneously as a ring around the black hole. This is why you’ll hear people say “you can’t hide behind a black hole.” You can see the stuff behind it because the light coming from that stuff gets bent around the black hole.

    Really, it’s better to think of the “galaxy” as a cloud of gas. It removes all of the confusion about scale.

    Of course, if this was a model of the actual interaction of a black hole with matter, that gas/galaxy would be an accretion disc that moved along with the black hole.

    This is strictly a demonstration of the path of light bending due to gravity (i.e. gravitational lensing).

  5. I need an ELI5 version of what I’m seeing here. I don’t consider myself a stupid person, but I am entirely confused at what I’m looking at.

  6. I am going to hazard an intuitive guess and say that you will see the same thing no matter what angle you’re looking at the star from, that you will always see the ring and halo of light whether you’re above the poles or equator or from an midpoint position.
    Is this correct?

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