Astrophysicists have detected unknown activity near the supermassive black hole at the centre of our galaxy
![Astrophysicists have detected unknown activity near the supermassive black hole at the centre of our galaxy Astrophysicists have detected unknown activity near the supermassive black hole at the centre of our galaxy](/media/post_big/supermassive_blackhole_planet.jpg)
At the centre of our galaxy is the supermassive black hole Sagittarius A*. It behaves relatively quietly, but recently scientists have detected regular activity near it.
Here's What We Know
Sagittarius A* does not devour huge amounts of matter, so there are no frequent emissions. Nevertheless, regular unknown flares in the X-ray range have been detected near the supermassive black hole. Help to understand the nature of their occurrence helped orbital Fermi Gamma-ray Space Telescope.
Scientists at the National Autonomous University of Mexico analysed data collected by the telescope from mid-June to mid-December last year. Astrophysicists concluded that the gamma-ray signal comes with a periodicity of 76.32 minutes.
The reliability of the discovery was 3σ. An exact confirmation requires 5σ. Thus, with a high probability, in the centre of our galaxy there is a clot of gas, which revolves around a supermassive black hole.
The distance of the gas cluster from the black hole is comparable to the distance between the Sun and Mercury (57.91 million kilometres). The velocity is about a third of the speed of light (299,792,458 m/s).
Source: Phys.org