Astronomers Measure Black Hole Jet Power and Speed, Revealing New Insights
Scientists have, for the first time, measured the instantaneous power and speed of jets emitted from a black hole in the Cygnus X-1 system. This system, located 7,200 light-years away in the Milky Way's Cygnus constellation, features a black hole and a blue supergiant star. The research, led by Steve Prabu from the University of Oxford, utilized 18 years of high-resolution radio imaging. The findings reveal that the jet power is equivalent to 10,000 suns, with speeds reaching half the speed of light. This study marks a significant advancement in understanding the energy dynamics of black holes, as previous measurements averaged jet power over thousands of years.