Astronomers have deployed a new technique to capture X-ray images of spinning supermassive black holes billions of light-years away, one of which has reached the point of no return.
Spinning black holes create a swirling torrent of gas and dust around them. Rotating at phenomenally fast speeds and with temperatures reaching millions of degrees, the disks glow when pictured in X-ray light.
Astronomers used a new technique to measure the spin of five supermassive black holes, located between 8.8 billion and 10.9 billion light-years from Earth, using NASAs Chandra X-ray Observatory.
The technique involves a combination of a natural phenomenon called a gravitational lens and the Chandra equipment to study six quasars, each consisting of a supermassive black hole rapidly consuming matter from its surroundings.[embedded content]
The authors of the study, published in the Astrophysical Journal Tuesday, were then able to determine how fast the black holes were spinning, based on the size of the glowing disk around it.
Results shRead More – Source