Stephen Hawking in his time, calculated that the boundary of the black hole has a complex shape and emits radiation. New data from gravitational wave detectors, seem to confirm the insights of the great astrophysics.
the Discovery is described in a scientific article published in Journal of Cosmology and Astroparticle Physics.
According to the General theory of relativity of albert Einstein, around a black hole is the event horizon. It’s smooth surface, from under which nothing can escape to the outside world.
later, However, Stephen Hawking, showed theoretically that is not entirely true. Due to quantum effects a black hole should leave the radiation, and its surface is not smooth. Figuratively speaking, a black hole is not smooth, and fluffy.
However, Hawking radiation is too weak to hope to ever see it in a telescope. Physicists are content to reproduce its analogues in systems, or in any respect resembling a black hole. Such experiments are at best indirectly confirm the theories of the great cosmologist.
fortunately, there is another source of information about black holes. It is gravitational waves, which are “News.Science” (nauka.vesti.ru) told.
the Authors of the new study analyzed data on the first public merger of neutron stars. Graviton surge that accompanied this event reached the Earth on August 17, 2017, in connection with what was designated GW170817.
Scientists have assumed that the merger formed a black hole with a mass of 2.6 and 2.7 solar. (Previously also spoken version that as a result of the cataclysm was born the black hole and neutron star).
According to the authors, “fluffy” surface of a black hole emitting Hawking radiation, gravity waves should work like a mirror. The signal will be repeatedly reflected from it, creating a kind of echo. This differs greatly from the classical event horizon: under the age of gravitational wave never will not return back.
data on GW170817 the authors recognized the echo. However, the accuracy of the result, the researchers estimated as 4.2 of Sigma (we were told that it is). This is a very serious value, but it still does not exclude that we are talking about random error.
“Our findings are still tentative because [all the same] there is very little probability that what we see is due to random noise in the detectors. But it will be less probable when we find more examples, says study co-author Niaes Afshordi (Niayesh Afshordi) from the University of Waterloo. Now that scientists know what to look for, we can find more examples and get a much more reliable confirmation of these signals. Such a statement would be the first direct study of quantum structure of space-time.”
Recall also that the statements about the revolutionary discoveries often turn out to be premature. Even competent professionals, published an article in a prestigious journal, is not insured from errors. Only a wide community of experts can decide just whether the authors ‘ conclusions.
By the way, before “News.Science” (nauka.vesti.ru) wrote about how gravitational waves can help in the study of quark matter, the search for hidden dimensions of space and the speed of expansion of the Universe.
Text: To.Science
