Research

The earth is under the gun of a supermassive black hole: is it worth being afraid?

Supermassive black hole Sagittarius A *,located in the center of our galaxy, not only absorbs nearby objects, but also emits powerful radio emission. Scientists have long tried to make out these rays, but they were hampered by the diffused light surrounding the hole. Finally, they were able to break through the noise of light with the help of 13 telescopes, which united in a single powerful system. Subsequently, they discovered interesting information about the previously mysterious rays.

To look through the surrounding Sagittarius A *light noise, all 13 telescopes were directed at it. Scientists have identified the differences between the moments when the signals from the source fell on each of the telescopes. This data helped them eliminate most of the scattering effect and get the clearest image of the object. Having studied it, the researchers discovered the frightening feature of the black hole, but in fact there is nothing terrible in it.

It turned out that the radio emission comes fromsymmetric source. The beam turned out to be narrower than previously thought, and it was directed directly to our planet - the accuracy reaches one 300 million degrees. Fortunately, scientists claim that this radiation is not dangerous, and the fact that the beam is directed straight at us is a huge plus. Thanks to good fortune, scientists have the opportunity to freely explore one of the most interesting features of a supermassive black hole closest to Earth.

Although light scattering blurs and distortsthe image of Sagittarius A *, this incredible observation allowed us to determine the exact properties of the radiations. In the future, we will be able to remove most of the interfering effects and see how objects look near a black hole, ”shared Michael Johnson, one of the authors of the study.

In the future, scientists intend to study a black hole athelp array telescopes event horizon. If in this study, the observation was conducted at a frequency of 86 GHz, then in the case of a new array, it will be 230 GHz. It turns out that researchers will be able to see more details and make more breakthrough discoveries.

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