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The 70-Year-Old Mystery of Two Galactic Mushroom Clouds

The 70-Year-Old Mystery of Two Galactic Mushroom Clouds
Giant bubbles hovering over the Milky Way seem to be remnants of an ancient explosion.
Jeremy Sanders, Hermann Brunner and the eSASS team (MPE); Eugene Churazov, Marat Gilfanov (on behalf of IKI)
When Peter Predehl, an astrophysicist at the Max Planck Institute for Extraterrestrial Physics in Germany, first laid eyes on the new map of the universe’s hottest objects, he immediately recognized the aftermath of a galactic catastrophe. A bright-yellow cloud billowed tens of thousands of light-years upward from the Milky Way’s flat disk, with a fainter twin reflected below. ....

Yoshiaki Sofue , Jun Kataoka , University Of Tokyo , Waseda University , North Polar Spur , Pair Of Bubbles , Faint Gamma Ray Glow , Bright Yellow Cloud , Orbitingx Ray Telescope , Light Years , Supermassive Black Hole , Astronomers Major Headache , Fermi Space Telescope , New Map Of The Universe , Supernova Remnant , Discovery Of The Fermi Bubbles , Max Planck Institute , Map Tracesx Ray Bubbles , Decades Old Idea , Peter Predehl , Controversy Hinges , Metal Abundance , Black Hole , 2d Map Ofa 3d Universe , Milky Ways Flat Disk , Gamma Ray Fermi Bubbles ,

Astronomers Detect Large-Scale X-Ray Bubbles in Milky Way's Halo | Astronomy

Astronomers using the eROSITA X-ray telescope onboard the Spektrum-Roentgen-Gamma (SRG) observatory have detected X-ray-emitting bubbles that extend approximately 14,000 parsecs (45,662 light-years) above and below the central region of our Milky Way Galaxy.
This image from the eROSITA X-ray telescope shows the energetic Universe. Image credit: Jeremy Sanders, Hermann Brunner & the eSASS team / Max Planck Institute for Extraterrestrial Physics / Eugene Churazov & Marat Gilfanov, IKI.
Launched in July 2019, eROSITA is a large-collecting-area and wide-field-of-view X-ray telescope.
Over the course of six months, from December 2019 to June 2020, it has completed a survey of the whole sky.
A preliminary analysis of the all-sky survey map indicated that more than one million X-ray sources were detected by eROSITA. This is comparable to, and may exceed, the total number of X-ray sources known before this telescope launched. ....

Hermann Brunner , Peter Predehl , Jeremy Sanders , Michael Freyberg , Andrea Merloni , Max Planck Institute For Extraterrestrial Physics , Milky Way , Max Planck Institute , Extraterrestrial Physics , Eugene Churazov , Marat Gilfanov , North Polar Spur , Solar System , ஹெர்மன் ப்ருன்னேர் , ஜெர்மி சாண்டர்ஸ் , பால் வழி , வேற்று கிரக இயற்பியல் , வடக்கு போலார் ஸ்பர் , சூரிய அமைப்பு ,