Millions of years ago, a powerful explosion rocked the center Galaxy, Sending two blistering waves across the sky. Those waves bulldozed through the galaxy, heating all the gas and dust in their path and leaving two teltale blobs of hot, highly energetic gamma-rays in their wake.
Today, those drops – now named Fermi Bubbles – Half of the width of our galaxy. There is a lobe tower for 25,000 light-years atop the Milky Way’s disk, and another is larger below it. Since their discovery in 2010, bubbles have been an unbroken mystery of our galaxy – and we now know that they are not alone.
As scientists continued to study our galaxy at each wavelength of the light galaxy, strange new structures within the Fermi bubble – from Plasma “chimney” light flow Radio energy balloons – Continuing to emerge. Now, a paper published in the magazine on 9 December Nature Reveals some of the largest Fermi-familiar structures yet: “Aeroseta Bubbles”.
related: Unforgettable images of 15 stars
Only appears in X-ray Emissions, these newfound bubbles are significantly less energetic (and less hot) than Fermi, but are nearly as bright, measuring about 45,000 light-years from end to end. These jewels of hot gas towers above and below the galactic plane in the shape of a different hour, like Fermi bubbles, are pinned to the galactic center at the point where the two drops meet.
Given their similar size and common midpoint, it is likely that Fermi and ERSIOSA bubbles share a physical relationship, and emerged from the same explosion of galactic fireworks probably millions of years ago, the authors write in their study. The reason why the bubbles burst in the first place is still a mystery, but astronomers suspect it includes Explosive outbreak Energy from the central black hole of our galaxy, Sagittarius A *.
This explanation fits for new X-ray bubbles, the study authors wrote, given the amount of energy required to inflate them. The team calculated that creating these structures required an energy release equal to 100,000 supernovae (powerful stellar explosions) – a figure equivalent to the X-ray energy release seen in other galaxies with black holes active in their centers. Even if this imaginary explosion is millions of years old, its traces will still be visible.
“The scars left by such outbreaks take too long to heal,” said co-author Andrea Merloni, senior scientist at the Max Planck Institute for Extraterritorial Physics in Germany. Said in a statement.
Merloni and his colleagues discovered the X-ray bubble using the ERSITA X-ray telescope, which revolves around the universe aboard a Russian-German Specter-RG satellite. The telescope scans the entire sky every six months, constantly updating our view of the X-ray universe.
Originally published on Live Science.