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In the binary black hole system V404 Cygni, a relatively small black hole and a sun-like star orbit one another while the black hole siphons material from its cosmic partner
"This is one of the most extraordinary black hole systems I've ever come across," said astrophysicist James Miller-Jones of the International Centre for Radio Astronomy Research (ICRAR) at Curtin University in Australia.
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.
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.)
In the case of V404 Cygni, the accretion disc is about 10 million kilometres (6.2 million miles) across. The misalignment of the black hole's rotational axis with the accretion disc has warped the inner few thousand kilometres of said disc.
The frame-dragging effect then pulls the warped part of the disc along with the black hole's rotation, which sends the jet careening off in all directions. In addition, that inner section of the accretion disc is puffed up like a solid doughnut that also precesses.
"This is the only mechanism we can think of that can explain the rapid precession we see in V404 Cygni," Miller-Jones said.
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: St Udio
it may be a problem with the 'balance' of the compressed material/matter that's trapped in the Black Hole...
most of us have witnessed a washing machine with an unbalanced load inside... It wobbles and thunks as the drum with the concrete weights slams against the washing machine wall and frame... the operator has to rebalance the clothing & fabrics so that the whole machine can spin like a top again...
the Black Hole might not have the ability to self correct the lumpy physical matter inside the 'belly' of the light-year large BH object = = = so another Big Bang might suddenly happen from that One wayward, erratic Black Hole gone wild !
originally posted by: gortex
I wonder what , if any , effect the dragging of Spacetime would have on an observer if they could get close enough to experience it.
most of us have witnessed a washing machine with an unbalanced load inside... It wobbles and thunks as the drum with the concrete weights slams against the washing machine wall and frame