Neutrino Secret: The Invisible Express in a Black Hole's Jet ⚡ экспресс
At the center of a galaxy, a supermassive black hole ejects a jet (plasma stream). It turns out that inside a slow, bright 'sheath' there is a superfast core that accelerates particles to tremendous energies. It's this core, like a spark, that ignites the sheath's glow, causing a delay between the neutrino and radio signals. Such a 'layered' structure could be the key to unraveling the origin of the most energetic neutrinos.
In a distant galaxy, a supermassive black hole shoots out a jet. In 2017, a neutrino was detected from there — a 'ghost particle' that pierces right through entire planets. But the radio signal from the jet indicated a speed too low for such acceleration. Archival images solved the mystery: inside the jet hides a super-fast core, racing at almost the speed of light. In the sky, it appears 21 times faster than light — an illusion, because the jet is aimed straight at us.
Neutrinos are born in the fast core, but their radio afterglow is delayed: it appears when the shock wave reaches the outer shell. The same double jet has been found in another neutrino source — this is a common rule. Physicists now have a key: to hunt for 'ghosts', you need to look into hidden ultra-fast cores.
🎯 The core streaks across the sky as if covering in one year a distance that light takes 21 years to travel — but this is just a spatial illusion, caused by the jet being aimed precisely in our direction.