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originally posted by: Justoneman
a reply to: rickymouse
Ricky think about it this way, and Phage would tell this better I am sure.
The event took that many years for the light to reach here IF the speed of light is constant.
Do we really know the speed of light or is it skewed to us by our observation. Just as quantum entanglement implies we somehow affect the outcomes by observing.
originally posted by: NightFlight
a reply to: gortex
Just think, it did that 7800 years ago...
Wonder what its doing, now?
originally posted by: rickymouse
Dragging space time? I do not think that a scientist can determine that from this point in space. If it was dragging space time, we would not be able to see anything wobble or come out, in fact, it would pull all light back into it and we would not be able to see it.
But since they have the degrees and have the money to slam the opposition and they form the consensus of the time in science, I will just have to live with their hypothesis being accepted. I am not going to believe something like that when I know how the scientific community works. The odds of this being completely correct are zilch, being half correct, maybe five percent. One mistake in their philosophy can make something completely wrong. In another hundred years, I would say we could maybe get a little better at finding the truth.
originally posted by: Soylent Green Is People
7800 years is just the blink of an eye in cosmic time scales. so I think it's likely that this object is currently doing virtually the exact same thing it was 7800 years ago.
Just like our sun, I'm sure a black hole goes through certain specific cycles, but even with those cycles it likely stays generally unchanged, just like our sun is generally unchanged (in the grand scheme of things, relative to the Sun's lifetime) over the past 7800 years.
V404 Cygni is a binary microquasar system consisting of a black hole about nine times the mass of the Sun and a companion star, an early red giant slightly smaller than the Sun.
The black hole is slowly devouring the red giant; the material siphoned away from the star is orbiting the black hole in the form of an accretion disc, a bit like water circling a drain. The closest regions of the disc are incredibly dense and hot, and extremely radiant; and, as the black hole feeds, it shoots out powerful jets of plasma, presumably from its poles.
Scientists don't know the precise mechanism behind jet production. They think material from the innermost rim of the accretion disc is funnelled along the black hole's magnetic field lines, which act as a synchrotron to accelerate the particles before launching them at tremendous velocities.
But V404 Cygni's wobbly jets, shooting out in different directions at different times, on such rapidly changing timescales, and at velocities up to 60 percent of the speed of light, are in a class of their own.
"We think the disc of material and the black hole are misaligned," Miller-Jones said. "This appears to be causing the inner part of the disc to wobble like a spinning top and fire jets out in different directions as it changes orientation."
It's a bit like a spinning top that starts to wobble as it's slowing down, the researchers said. This change in the rotational axis of a spinning body is called precession. In this particular instance, we have a handy explanation for it courtesy of Albert Einstein.
In his theory of general relativity, Einstein predicted an effect called frame-dragging. As it spins, a rotating black hole's gravitational field is so intense that it essentially drags spacetime with it. (This is one of the effects scientists hoped to observe when they took a picture of Pōwehi.)…
"Finding this astronomical first has deepened our understanding of how black holes and galaxy formation can work. It tells us a little more about that big question: 'How did we get here?'"
The research has been published in Nature.