Astrophysics of the Cosmic Flight Center named after Goddard NASA for the first time created visualization of two black holes rotating around each other in a double system, based on previously developed light curvature models. This is reported by the Edition of Science Alert.
Specialists recreated the appearance of a supermassive black hole with a lot of 200 million suns and a smaller object, whose mass is two times less. Both black holes have wide accretion disks that may exist in a stable condition of millions of years. The disc surrounds the shadow of a black hole, and the thin ring at the very shadow itself is called a photon ring and formed by photons that are held at a stable orbit due to the gravity almost close to the event horizon.
The black hole so much distorts the space around itself, which acts as a lens, displaying the back of the ring in the form of a glowing halo. That part of the accretion disk, which moves in the direction of the viewer, it seems brighter than the one that is removed, and everything is due to the Doppler effect.
The gravitational fields of both black holes interact with each other, forcing photons to move through very complex trajectories that can only be calculated using a powerful supercomputer. Near the photon ring, the light bends at an angle of 90 degrees, so there can be a reflection of the second black hole, which is located on the side of his neighbor. Such gravitational linlication creates many distorted images of the companion.