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A mysterious Black Hole with a wobbling accretion disc

ScienceandFuture
Black Hole with tilted accretion disc

Black Holes are complicated and mysterious. Some 8000 light years away, in the Cygnus Constellation, a black hole named V404 Cygni is exhibiting some weird properties never seen before. The black Hole caught the telescopes eye in 2015, when it woke up from dormancy and started consuming the nearby star’s material.

Cygni is nine times the mass of the sun and the star consumed is slightly smaller than the Sun. The weird phenomenon being exhibited is that the relativistic jets surrounding the black hole are wobbling so fast that they change their direction in minuets and as they do, plasma clouds with super high speeds are released.

This black hole is stripping a star and releasing plasma jolts at 60% the speed of light

Also, as the black hole is stripping the star, the star’s material is shaped in the form of a disc surrounding the black hole. The inner material being at far greater pressure and temperature than the outside. As the black hole consumes this material, it releases strong jolts of plasma.

These jolts of released plasma are being released from different directions at near 60% the speed of light, assumably due to the rapidly changing timescales and directions. Scientists term this as an extraordinary black hole phenomenon they have ever come across.

Partially, a similar case has been predicted by Einstein in the theory of general relativity. It says that the revolving gravitational field around the black hole is so intense that it tends to drag space time with it — frame dragging.

The Cygni’s material disc is somewhat 10 million kilometres and maybe there is a misalignment between the black hole’s rotational axis and accretion disc, which is allowing it cause the whole space time frame dropping thing while releasing heavy jolts of plasma in all directions.

Other than this, the researchers said that there is not much they can compare it too nor they have anything that explains this rapid precession.

Ordinary radio telescopes were useless so scientists used something different

This whole thing was captured by telescopes in the year 2015 in a course of a week and the data collected back then was so humongous that scientists are still studying it. In fact, the normal exposer devices like the radio telescopes similar to the ones used to capture the first image of the black hole were practically useless here, so the scientists had to work around and ultimately came up with taking 103 individual images each with exposer time 70 seconds and then stitching them together to form a image.

Yet, the exact reason behind the high speed plasma jets is still unknown but they seem to be from the inner most material of the accretion disc which it being pushed along the magnetic field lines of the black hole, which is also accelerating them before launching.

At last, Black holes are complicated and like to keep their mysteries to themselves.