Astronomers have organized radio telescopes all over the world in a virtual Earth-sized camera for a bold new experiment that tried to convey the world's first black hole image. The telescope co-operation intends to make a great announcement about the results of this week and members also described their research approach during a conversation in March.
Black holes are extreme distortions in space-time, which are so strong. their massive gravity does not even let the light escape as soon as it approaches.
The idea of astronomers is to photograph a circular, opaque silhouette of a black hole on a light background. The edge of the shadow is a horizon of events, the point of a black hole does not return. The picture costs thousands of words, and a photo of a black hole will be an important tool for understanding astrophysics, cosmology, and the role of black holes in the universe.
Listed: "Revolutionary Result", derived from the Black Hole Hunt Telescope
If the astronaut placed orange on the surface of the moon, the citrus would be very difficult to view from the Earth. Black holes are just as hard to spot, said Shepherd Doelman, director of a project for an ambitious new project called the Event Horizon telescope.
Doeleman shared this joke with the audience at the South by Southwest Festival (SXSW) Festival in Austin, Texas last month. Doeleman and colleagues Sera Markoff, Peter Galison and Dimitrios Psaltis covered how the project works during the SXSW event, EHT: Planetary effort to photograph a black hole .
Black holes are massive structures when compared to planets and humans. But what we think is big, on a galactic scale, is small. So, taking pictures of the black hole events horizon is complicated
for EHT purposes is about 10 percent of the size of our solar system, "said the astrophysicist from the University of Amsterdam Sera Markoff. An extra black black hole in the center of the Milky Way, called the Sagittarius A * is approximately equal to the orbit of Mercury, added Doelman.
If the spacecraft could push the astronomers from the Milky Way, which is approximately 50 billion times the Sagittarius A *, then, according to Markoff, the detection of this black hole among billions of other stars and planets in the galaxy will be quite difficult.
To observe a supermassive black hole in the center of the Milky Way galaxy, or to see another project goal – the supermassive black hole in the nucleus of the supergiant elliptical galaxy Messier 87 – the EHT team had to turn the Earth onto a platform of a virtual telescope. This is because the magnifying power of the telescope is limited by the size of its dish, and with the help of an array of instruments all over the world, the team effectively breaks the plate and dissipates pieces all over the world to make one great cosmic eye
. Listed: This huge black hole rotates at half the speed of light!
Radio Telescope Observatory, participating in the EHT observations in 2017 were ALMA (Atacama Large Millimeter in Chile, APEX (Atacama Pathfinder experiment) in Chile, IRAM 30m (Millimétrique Institute of Radio Astronomy) in Spain, SMT (Submillimeter Telescope) in Arizona, JCMT (James Clerk Maxwell telescope) in Hawaii, SMA (SubMillimeter Array) in Hawaii, and SPT (South Pole telescope) in Antarctica.
Coordinato The observations were also made in X-ray and
Sagittarius A * calm, which means that it does not actively consume many neighboring stars and the gas that emits radiation. An active black hole hides inside Messier 87. t When one of them breathes further, telescopes must observe "the entire spectrum of the electromagnetic spectrum, from radio to gamma rays," said Markoff.
On the basis of the project, its 200 scientists want to answer two questions, according to Psaltis, an astronomer and physicist from the University of Arizona. First, just if you can take a picture of a black hole. But the second important question they ask is that Einstein had 100 per cent of the rights to handle black holes.
"Einstein told us 100 years ago what should be the size and shape of the shadow. If we can lay a ruler through this shadow, we can verify Einstein's theory of the black hole boundary." – said Doelman.
The team also wanted to build models that would describe black holes in different circumstances, which will then be compared to EHT observations.
In the work described in SXSW, the team used GPUs, such as those that used in your favorite game consoles or computer to simulate all the hypothetical varieties of the black hole environment. They created hundreds of gigabytes of 3D data to simulate capabilities. Psaltis said that photons, plasma, gas, and magnetic fields are described in the black hole forecast. Once they get one, the team can compare black hole shadow images with different scenarios processed by graphics processors to make the most realistic black hole behavior model based on our current physics understanding.
"The fact that the image of the black hole could do for us, if we can get it, would take that which is the most extreme, the most surprising prediction of the general theory of relativity, one of the great achievements of the human mind, [and]] to combine "It's like making a new camera with a new kind of film, a new kind of movie, combining it with other cameras right away, with the latest state-of-the-art electronics with a planetary scale of collaboration with state of the art statistical techniques [and]," said Halyson, a professor at Harvard University. and if it's mo but if we can really get there and see it straight up to the horizon
Galison added that the first picture of the black hole would be, beyond doubt, a pun intended – that these gigantic, powerful and elusive structures exist.