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ESO will announce the first photo of the black hole on April 10th



The rumors you heard are true. And if you have not heard rumors, you should check your internet connection.

The European Southern Observatory (ESO) is organizing an important press conference on April 10, including the Event Horizon (EHT) telescope. They did not go out and said that, but the ESO media consultation said they would "hold a press conference to present an innovative ETC result." If it's not a black hole, then it's good to play

But of course, black hole picture. That's all that the Event Horizon telescope is about. EHT is an international effort to get the first black hole picture and they do it by creating a "virtual telescope" with the size of the Earth.

The virtual telescope is more correctly called a very long base interferometer. This means they have connected radio stations around the world to watch the same object. This creates what body maniacs call "high angular resolution". In general, the larger the scope, the more detail we can see. And no telescope is as big as the Earth, except for the ETH.

How will the black hole look like?

In October 201

8, EVT released a simulated image of what they thought they would see. Keep in mind that EHT scientists will shoot images on the horizon of black hole events because the black holes do not allow the light to escape. But in some ways this is the horizon of events, which is the business end of the black hole.

  A simulated view of a black hole. Yours sincerely: Bronzwaer / Davelaar / Moscibrodzka / Falcke, Radboud
Imitation of a black hole. Credit:
Bronzwaer / Davelaar / Moscibrodzka / Falcke, Radboud University

If it seems contradictory to say that there will be a black hole picture and then say that there really can not be a black hole picture we'll get it,

Black holes have different parts, and once you understand their structure, you understand the supposed contradiction. When most people think of a black hole, what they think of is the part called SINGULARITY. This is where, in our opinion, there is infinite density. Everything that falls into a black hole goes here, and according to Einstein's general theory of relativity, this is where the general theory of relativity collapses.

The horizon of the event lies directly on the perimeter of the Singularity and there the gravity of the black hole is so strong that nothing can escape. This is the point where it does not return for everything, and this is the "black" part of the black hole. Then there is the photonic sphere, the relativistic jets, the innermost orbit and the accretion disk

The wonderful people at ESO have kindly provided this detailed and magnificent infographics.

Click to enlarge. The impression of this artist depicts a swirling supermassive black hole, surrounded by accretion disc. This thin disc of rotating material consists of the remnants of a solar star that has been torn by the tidal forces of the black hole. The shocks in collapsing debris, as well as the heat generated in the accumulation, lead to a burst of light resembling a supernova explosion.
SO, ESA / Hubble, M. Kornmesser / N. Bartmann

So it must now be clear why ESO calls their Earth-sized interferometer as a telescope for the horizons of events. They want pictures from Horizon's own events.

Horizon?

Black holes are one of the most fascinating subjects of nature, more overwhelming than even the blue dragon. In fact, the EHT has two ends, both black holes. The first is our own A-star Sagittarius (Sag. A *), the behemoth who sits in the center of our Milky Way Galaxy. The second is an even more massive black hole in the M87 galaxy.

Many theorize about what the black holes are and what they do. But there are more questions than anything else and EHT hopes to answer some of them.

The key question is how does man look? Again the problem is we can not see one. But we can see the swirling, energetic disc of material close to the hole itself. And all this rotation creates many X-rays and other high-energy radiation that we can see. We hope that EHT will be able to see the shadow of the black hole of all that light.

Another question is whether a black hole causes the general theory of relativity to collapse? We think so, but ETH will help us answer that. The general theory of relativity is incompatible with quantum physics, so something has to be given, and the point it gives can be the black hole.

  The artist's impression of the black hole of the star mass. Some black holes shoot jets of material, some do not. With respect to: NASA, ESA, Martin Kornmeser (ESA / Hubble)
The artist's impression of the black hole of the star mass. Some black holes shoot jets of material, others do not. Yours sincerely: NASA, ESA, Martin Cornmeser (ESA / Hubble)

Another question is why some black holes emit jets of material while others do not? Our own black hole, Sag. A *, does not emit jets of material, and the other in the EHT sights, in the M87 galaxy, does. Perhaps the ETH will help to answer this puzzling question.

In any case, it's only another week until we know what progress they have made with ETH and if we're closer to some answers.

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