2019 brings us the first black hole picture. Could be the next movie
- December 30, 2019
- William Lewis
So far. Then more decade of work, the results of the Event Horizon Telescope or EHT have shocked the world this year with the first live image of the black hole’s horizon, an area beyond whinech even light can escape.
To create this remarkable image, scientists mobilized a massive “telescope” by connecting seven observers around the world to develop a device to effectively shape the Earth (SN: 4/27/19, page 7). The result: a picture of a black hole’s rounded silhouette against the colourful background of its glowing attraction disc, gas and other materials created by the black hole’s unrestrained gravity appetite.
Almost immediately. Of course, this image boosted Einstein’s general theory, weighed in on the best way to measure black hole mass (SN Online: 4/22/19) and provided evidence that the incident. The horizons are real. Now the EHT team is searching for the revelation of too much telescopic data, in hopes of breaking the mystery of the black hole.
“This event is just the beginning of a new era of horizontal observation,” said Casto Akiyama, a member of the EHT team and astrophysicist at the MIT Historic Observatory in Westford, Mass.
The initial black hole snapshot, which appeared in April, focused on a distant galaxy, M87 (SN: 4/27/19, p. 6). Of the approximately 6.5 billion solar masses, the M87’s black hole is a thousand times more like the EHT’s second target, the black hole in the middle of the Milky Way. That black hole, Cigarettes A *, also known as Sgr A *, weighs 4 million times the mass of the sun.
Due to its large scale, the M87’s giant was made an easy subject. The gases rotating around this black hole shine much higher and less dramatically than the high-revolving circulars around the SGRA *.
EMT team member Andrew Chell, a Princeton University astronomer, says “M87 was still sitting for his picture.” “Sgr A * is running like a leopard all over the frame.”
In the data collected over a week in April 2017, the CGRA * changed its shape in a matter of minutes. So while the black hole of the M8787 lends itself to a single steel image, “For Sgr A *, we may need to make a movie,”.
The easiest way to make a film, says Katie Bowman, a member of the editorial team, is to split the scenes into one night, create an image from each section and combine them. But even the smallest part is not enough information to produce a real picture. ”
You rearrange nonsense,” she says.
Instead, the team is working on time-consuming techniques to fill the gaps and advance information about the appearance of the black hole. Bowman says, “We assume that although the source is being prepared, it is not randomly generated – there is some continuity in how the gas is operating around the black hole.” Combining the easy-going film, he and colleagues hope to understand the structure of the black hole.
The 2nd target of the Event Horizon Telescope is visible in the centre of the Milky Way (shown).
The inset zooms in on A *, indicating that the X-ray (blue) emitted from the hot gas captured by the black hole has been revealed. X-ray: NASA, UMASS, D. Wang et al., Hazard: NASA, STScI
Physical physician, Faryal Ezell of the University of Arizona in Tuscan, says that a good look at the event horizon of the SGRA * will give physicians an excellent general relationship test.
A centuries-old theory predicts how the black hole’s massive space-time climbs (SN: 10/17/15, p. 16). The public relationship also offers accurate predictions of the size of bright colours and dark silhouette for a large number of black holes.
The black hole of the M8787 was a long way away from the astronomers who knew it extensively before capturing it. But the SGRA * is widely known, thanks to decades of star measurements that have been circulating the Milky Way’s black hole. Capturing the image of the SGRA * “will be a clear test of some of the things we want to see,” says Alise. “The ring and the shade, this is the size you expect or not … This is an incredible opportunity for us.”
A movie from the M-87 Black Hole may also work. “Our observations provide good evidence that the M87 is [actually] changing in a matter of weeks,” says Akiyama. Studying how a black hole changes, revealing details of how it rotates, revolves around magnetic plasma like a dancing skirt.
Among the other treasures awaiting previously collected data, is the polarization of light emitted from the M87’s black hole’s bright ring. This step of acquaintance with light waves. Wiggling up, down and down, left and right, or at an angle – lets scientists determine the healthy management of magnetic fields near the black hole. These magnetic fields are thought to overcome how the black hole is moderated.
The arrangement “tells you how the black hole eats,” said Master Kepheridge, a specialist at the Harvard Smithsonian Center for Astrophysics Johnston.
But actually, “falling into the black hole is extremely difficult,” he says. The circulating material will only slightly rotate forever until any friction or viscosity in the atmosphere pulls it toward the black hole.
Physicists believe that magnetic fields are the ones that make the atmosphere around the black holes viscous. In 2015, Johnson and colleagues published EHT observations of polarization around the SGRA *, showing the entangled magnetic field near the black hole and the far-flung area. But these observations came from only four telescopes.
“We have this beautiful idea of why black holes can eat, but we’ve never seen evidence of that,”
says Johnson. “So if EHT can see these magnetic fields, it might be our first glimpse into the settlement process.”
Polarization could also help define a mysterious feature of the M8787: it launched a bright, vibrant jet that spanned the space from light to years. Physicists believe that magnetic fields that revolve around black holes are essential for launching planes, physicists understand, but the details are complicated.
Johnson says, “If we can look at this polarization, we can see these processes directly. Magnetic field and jet and how they are connected to the black hole.”
The EHT will be shot once again in April 2020, this time with 11 roundabouts including the Kat Peak in Arizona and NOEMA in the French Alps. In the future, EHT scientists are considering sending telescopes to space. Extending the EHT to the orbit of the earth will eliminate the worries about groundwater that are ruining comments. And even more, will help create faster images of black holes.