Scientists have recorded traces of a space jet from the center of our galaxy. This is reported by the information center of the Hubble telescope.
Astronomers have discovered a “leak” in the center of the Milky Way – the traces of a small jet several thousand years old. The NASA / ESA Hubble Space Telescope did not photograph the phantom jet, but did provide circumstantial evidence of weak activity. The research results are published in the Astrophysical Journal.
Supermassive black holes lurk at the center of most galaxies, and the Milky Way is no exception. However, in most galaxies, black holes are extremely active. This means that a lot of matter gets into them, and as a result, they emit a lot of high-energy radiation. But the Milky Way’s central black hole is relatively calm.
“The central black hole is dynamically changing and is currently off,” said Gerald Cecil of the University of North Carolina at Chapel Hill, co-author of the study.
But recently, Hubble discovered traces of a cosmic jet from Sgr A * (Sagittarius A *), a supermassive black hole weighing 4.1 million Suns at the center of our galaxy. This proves that it does not “sleep”, but periodically spews energy when stars and gas clouds fall into it.
Usually, black holes pull some material into a swirling, orbiting accretion disk. Part of the falling material is ejected in the form of plasma jets back into space – these are the jets. They are accompanied by a stream of deadly ionizing radiation.