Black holes really look like pigeon eggs with halos? Expert: The orange part is radio.

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 Black holes really look like pigeon eggs with halos? Expert: The orange part is radio.


A thousand calls begin to come out! At 9:07 p.m. on April 10, 2019, the first black hole photograph captured by humans was made public.

When people sigh that they finally see the real face of a black hole, many people also find that the black hole photos released this time are indeed a little ugly compared with the film and television works, giving people the first reaction is not focusing.

Li Zhao, a physicist, made a brief analysis of the photograph: near the horizon of a black hole, it attracts material that either spins at high speed or falls into it. In both cases, frictional waves occur. The orange part we see is actually radio that is invisible to the naked eye. It is only dyed in the later treatment to make it visible to everyone.

Why is this black hole so small compared with film and television works? Li explained that because the black hole has only 4 million solar masses, its radius is only 12 million kilometers, and the movie Star Crossing often has 1 billion solar masses, so the black hole is small like a pigeon egg.

Source: Responsible Editor of Cover News: Li Wan_B11284