Black Hole Pinball: How Spin Creates Dark Matter ⚡ экспресс
Original: "Dimming of Photon Ring due to Photon-Axion Conversion around Kerr Black Holes"
Light trapped by a black hole's gravity can transform into dark matter particles—axions.
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Black holes don't just suck everything in—they can also help us see the invisible: right at the event horizon, light sometimes transforms into dark matter particles—axions. This shows up as a mysterious shadow in X-rays. Future ultra-precise telescopes could catch such a signal for the first time and unveil the secret of the Universe's hidden mass.
🎯 In a pinball machine, the ball can bounce around for several seconds; near the black hole M87*, light lingers for just a millisecond, but in that time it covers tens of thousands of kilometers—and that instant is enough to spawn an axion, which then passes unimpeded through an entire planet.