Scientists crawl from pictures of the colored black hole

Black holes are notorious because they are invisible. But thanks to the new technology from Event Horizon Telescope (EHT), we are about to start seeing them in color.

Astronomers have discovered a way to monitor the radio sky at multiple frequencies at one time, allowing them to create full -colored black holes. This penetration is designed on a technique called the frequency transmission, which allows scientists to correct interference in the atmosphere in actual time through multiple radio domains. In normal English: They have mainly discovered how to give radio telescopes upgrade a multicolored vision. Sarah Esson, researcher at the Astronomical Physics Center Harvard and Smithsonian led the team, whose research was recently Published In the astronomical magazine.

Ethi Horizon Telescope (EHT) The world surprised In 2019 with the first image of a black hole – M87*, Follow in 2022 By Sagittarius A*, the super black hole in the Galaxy Center. Now, scientists plan A 300 million dollar mission of spaceEvent Horizon Explorer, designed to increase these images ten times and detect the dodging rings that may confirm the black hole and pay the boundaries of general relativity. At the same time, some researchers have challenge The original SGR A picture, suggests that the accumulated tablet be more extended than a loop-is an open question that may solve future notes.

Similar to how our eyes take in various wavelengths of visible light and interpret them as a group of colors, radio telescopes pick up slices of invisible radio light in specific frequency ranges. Sufficient stitching these slices together and get something like a colorful image – not in the visible spectrum.

But so far, most radio telescopes have not been able to monitor only one frequency range at one time. This is a good thing when the goal of astronomers is a distant galaxy that looks stable against the universe. But if scientists are trying to photograph a black hole that rotates quickly from relative aircraft, or fluctuates from the forces of gravity, radio data cannot be taken in one form. The object simply moves quickly so that the multiple exposure layer cannot in a coherent way.

Enter the frequency transmission. like I mentioned In universe today, the team managed to track the atmosphere distortions in their notes with one wavelength and sharpen the image with a different wave length. (Correcting the atmosphere distortion is a regular problem for ground posts, however New techniques They allow telescopes to overcome this long obstacle in Earth -based astronomy). The method of photographing the new black hole for the team is still experimental, but proving the concept means that we are on the cusp of more clear pictures and the most beings in the universe.

Monitoring the next generation like EHT and Black Hole Explorer (BHEX) is already preparing to use this method, which makes us closer to seeing a black hole with all its violent and vibrant brilliance.