Generally, black holes with the help of their gravitational force pull any item that crosses their path. However, it’s only material objects even if is from nearby planets and stars.
On the other hand, the V404 Cygni black hole appears to be dragging in space itself according to a report presented by team of researchers from the International Center for Radio Astronomy Research (ICRAR) using the National Science Foundation’s Very Long Baseline Array (VLBA).
The black hole is around nine times the size of the Sun and around 8,000 light-years away from the Earth. Presently, it’s pulling its material from a star which is 70% of the size of the sun and their orbits don’t align. The material ends up in a rotating stream of material around the black hole that’s known as accretion disk. The V404 Cygni black hole has a disk 10 million kilometres wide.
As the disk gets close to the black hole becoming denser and hotter, the black hole and inner parts of the disk start to initiate material pieces away from the accretion disk in what scientists call a ‘wobble’.
In the case of V404 Cygni, the massive speed of the wobble brings Einstein’s general theory of relativity into existence, which states that big objects such as black holes can warp space and time itself.
Orbit misalignment associated with a rapid wobble leads to a ‘frame-dragging’ effect where the material being pushed from the accretion disk can be observed to change direction.
Since the V404 Cygni black hole didn’t obey the same rules as conventional black holes, the ICRAR team has to merge 103 images of the black hole, each of them around 70 seconds long, in order to watch the phenomenon.