Cosmic Sprinkler: The Source of a Giant Bubble ✛ ✎ ✦
Just as a garden sprinkler flings droplets, a tiny black hole in the system Cygnus X-3 spews particles. It sucks in matter from its companion star, spinning it into a scorching disk, and ejects it in two opposite jets.
These particles — cosmic rays — seep for millennia through the tenuous interstellar gas and plasma. Colliding with atoms, they spark gamma-ray flares, creating an enormous glow — the Cygnus Bubble.
An unexpected twist: the tiny black hole sets the rhythm for the entire system. Every 4.8 hours, as it orbits the star, it wobbles the jets like a garden hose, spraying particles into space. This forces us to rethink where the fastest particles are born and how the Galaxy’s evolution works.
Every 4.8 hours, Cygnus X-3 winks at us with radio flares: it’s the black hole circling a massive star, its jets swinging like a gardener’s hose, watering the neighborhood.