Astronomers have discovered for the first time gamma rays emitted by extremely fast outflows (UFOs) coming from several neighboring galaxies. This discovery could shed light on how the early Milky Way worked.
Daily Mail on November 10 reported, a team of researchers – led by Clemson University (USA) – detected gamma rays from UFOs using data from the Large Area telescope on the space-ray telescope. NASA’s Gamma Fermi with some techniques for combining signals.
UFOs are strong winds coming from supermassive black holes, which may play an important role in the evolution of black holes as well as host galaxies.
All galaxies have a supermassive black hole at their centre, including the Milky Way, which is home to Sagittarius A*. There are inactive black holes and active black holes.
In recent years, scientists have discovered that Sagittarius A* – the supermassive black hole in the middle of the Milky Way – is more active than previously thought, although it is not classified as active. .”Although the winds are difficult to detect, they are thought to play an important role in the development of massive black holes and host galaxies,” said study lead author Chris Karwin.
“Our observations show how supermassive black holes can transmit large amounts of energy to their host galaxy. UFOs generate shock waves, act like pistons, and actually accelerate. charged particles (cosmic rays) come close to the speed of light,” Karwin said.
Active black holes suck up surrounding celestial bodies and “eat” their matter. This process is called accretion. For UFOs, wind actually plays a role in the size of the galaxy and how it grows, it can move gas (if strong enough) across galaxies over time.
The study could help provide more insight into when Sagittarius A* stops working, Karwin notes.
The study was published in the Astrophysical Journal.
