Black holes do not look quite as it seemed

Astronomers have for the first time got the correct image of the universe Monster


Black holes are usually portrayed either as black bubbles, either in the form of black funnels. And thus, as it illustrates the main feature of these mysterious objects — regions in space-time universe, where gravity is so great that they are a suck — they can not escape, even light.

In fact, black holes — or rather their borders, which are called event horizons should look different. How's that?

Correct image of a black hole has recently unveiled an astronomer at the University of California at Berkeley (University of California, Berkeley), Ayman Bin Kamruddin (Ayman Bin Kamruddin), presenting it to the 221st meeting of the American Astronomical Society (221st meeting of the American Astronomical Society).

The image was modeled on a computer, but on the basis of data from radio telescopes.

Kamruddin and his colleagues are now working on the project "telescope event horizon" (Event Horizon Telescope), argue that the part of the black hole must be like not to bubble, and the crescent moon. And so they would look like a black hole Sagittarius A at the center of our galaxy, if they managed to get close to her closer.

Black hole — no funnel
Photo: Ayman Bin Kamruddin
The black hole and the ball
Photo: Ayman Bin Kamruddin
Correct black hole — is crescent
Photo: Ayman Bin Kamruddin

According to astronomers from UC Berkeley, the crescent is derived from the fact that the black hole is rotating and lit the gas disk in the form of a donut, the edge of which is sucked inside. Black hole itself appears spot in the center of the crescent.

In the framework of the "event horizon telescope" the researchers will collect data obtained using different telescopes available throughout the world and in the orbit of the Earth, and using them to depict the observed objects.

MEANWHILE

And the idea of the show, which opens from the spacecraft, flying at the speed of light, too, was a mistake

In science fiction movies spaceships fly faster than light. And to show the rapid spurt, leading to a different space, directors share the same artistic technique was first used back in the early episodes of "Star Wars." Heroes pull the "magic pen", symbolizing the control element to change to "overdrive", and the ship is rapidly accelerating, accelerating to the speed of light. The stars that shone out in the cold, not just a flash in this case, a stretch of the line. It is this beautiful picture and questioned British physics students at the University of Leicester (University of Leicester). Work on the science-based refutation of what he saw in the "Star Wars," the four final-year students — Riley Connors, Kate Dexter, Joshua and Cameron Arzhil Skular (Riley Connors, Katie Dexter, Joshua Argyle, and Cameron Scoular) — published in the university magazine Journal of Physics Special Topics. They have in the University of Leicester as manager — take some interesting topics, explore them and to acquaint colleagues with the results, which is very useful for future scholars.

Students claim: Han Solo, Chewbacca, Luke and Princess Leia, leaving the chase in his ship Millennium Falcon, strung out in a line instead of stars would see a bright disk.

In the transition to this velocity stars do not pull in the line
Photo: Lucas Film

As explained by the study's authors, all about the Doppler effect — that is, a change in frequency and wavelength, due to the fact that their receiver — for example, the ship Millennium Falcon — moving quickly. A typical example from the field of acoustics: the tone siren car with flashing lights is higher, if the listener is close to this car at high speed.

With light — the same thing. Due to the Doppler effect, the frequency of light from the stars rise and shift of the X-ray visible — invisible to the eye — part of the spectrum. In other words, the stars seemed to disappear. A crew will need extra protection from X-rays — is so strong it will be.

At the same time, reduce the length of the microwave background, or the so-called cosmic microwave background electromagnetic radiation (Cosmic Microwave Background Radiation) — the one that is left in the universe after the Big Bang. It is now distributed in space more or less evenly.

Background radiation, on the contrary, will be visible to an observer at the speed of light to be dispersed to the ship. Thus appear bright disk, fading at the edges.

Instead of stars appear bright disk
Photo: University of Leicester


I hope that the filmmakers will now correctly represent the overclocking spacecraft, — says the 21-year-old Katya Dexter. — If you want to, of course.

Vladimir Lagowski

Category: Astronomy and Space

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