Registriert: Fr 18. Dez 2020, 09:24
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 Millions of years ago, a powerful explosion shook the center of the Milky Way, sending twin shockwaves across the sky. Those waves blow through the galaxies, heat up the gas and dust in their path, and let two hot, high-energy gamma rays to awaken.Today, those drops, now named Fermi Bubbles, are half the width of our galaxy. One petal towered above a disk of the Milky Way 25,000 light years, and the other as large as the bottom.Since its discovery in 2010, the bubble has been a huge mystery to our galaxy and now us. I knew they were not alone.As scientists continue to study our galaxies at every imaginable wavelength of light, strange new structures within Fermi Bubbles range from the plasma "chimneys" to the slowly inflating balloons.
Now, a paper published Dec. 9 in the เกมสล็อตฟรี journal Nature reveals the largest structure Fermi is familiar with, the "eROSITA bubble".Visible only in X-ray emissions, these newly discovered bubbles are much less powerful. (And less hot) than the Fermi, but is almost the same size, measuring about 45,000 light years from start to finish. Like the Fermi bubbles, the orbs of the hot gas tower at the top and bottom of the galaxy plane in different hourglass shapes pinned to the center of the galaxy at the point where the two drops meet. together With a similar shape and a common midpoint, it is possible that the Fermi and eROSITA bubbles are physically linked,
and possibly caused by the galactic fireworks eruption millions of years ago, the authors write in the study. They What caused the bubbles to explode in the first place remains a mystery. But astronomers suspect it is related to energy bursts from the central black hole Sagittarius A * galaxy.The explanation is suitable for the newly discovered X-ray air bubbles, considering the amount of energy required for expansion. The team calculated that energy equivalent to 100,000 supernovas (powerful stellar explosions) were needed to create these structures, the numerical equivalent of X-ray emissions found in galaxies. Another CC with an active black hole at its center.
Although this supposed explosion is millions of years old. But the traces of it are still visible.The scars caused by the blast took a very long time to heal," said co-lead author Andrea Merloni, a senior scientist at the Max Planck Institute for Extraterrestrial Physics in Germany, in a statement.Merloni and his colleagues discovered X-ray bubbles using the eROSITA X-ray telescope, which rode around the universe aboard the Russian-German Spektr-RG satellite.The telescope scans the entire sky every six months, updating its view. Our ongoing tomography
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