A strange bubble of gas can be seen orbiting the black hole of the Milky Way

Astronomers with the Atacama Large Millimeter/Submillimeter Array (ALMA) in the Chilean desert have discovered indicators of a “sizzling spot” orbiting Sagittarius A*, the black hole at the middle of the Milky Way; its location is highlighted in the picture above.

Astronomers have caught a glimpse of the black hole Sagittarius A* at the middle of our galaxy, a bubble of gas spinning at “unbelievable” speeds. The discovery was made in a scientific research revealed this Thursday (22) in the journal Astronomy & Astrophysics.

Detecting this bubble, which has a lifetime of no quite a lot of hours, can present perception into the conduct of black holes. These astronomical objects are much more mysterious as a result of they’re actually invisible—their gravity is so sturdy that even mild can’t escape.

Known as a “sizzling spot,” the bubble might assist us higher perceive the mysterious and dynamic surroundings of Sagittarius A* stars.

The EHT (Event Horizon Telescope) collaboration, a world community of radio telescopes, confirmed its first picture in May—actually, the ring of materials surrounding the black hole earlier than it was swallowed up.

ALMA, one of these radio telescopes primarily based in Chile, picked up a “very strange” sign in the observational information of Sagittarius A*, astrophysicist Maciek Wilgus of Germany’s Max Planck Institute for Radio Astronomy informed AFP.

Minutes earlier than ALMA collected this information, the Chandra Space Telescope detected a “big burst” of X-rays from Sagittarius A*.

This burst of power, believed to be much like the Sun’s photo voltaic storms, despatched a bubble of gas flying round the black hole at full pace, the research described.

Artist’s rendering of the supermassive black hole Sagittarius A*, exhibiting the hotspot and its orbit

Image: EHT Collaboration, ESO/M. Kornmesser (Credit: M. Wilgus)

The phenomenon, which was noticed for about an hour and a half, made it potential to calculate that the gas bubble made a whole orbit of the black hole in simply 70 minutes, that’s, at a pace equal to 30% of the pace of mild. as much as 300,000 kilometers per second.

According to Wilgus, “a pace that defies creativeness.”

According to the idea found by the scientist, the phenomenon would be of magnetic origin. The magnetic discipline of a black hole is so sturdy that it prevents it from swallowing a component of the matter that’s rotating round it.

But in keeping with the astrophysicist, this accumulation of materials will trigger a “flare” that disrupts the magnetic discipline and releases bursts of power in the type of gas bubbles.

Observing these magnetic fields ought to assist us perceive how black holes work. They can additionally present how briskly these black holes are rotating.

© Agence France-Presse

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