Scientists have made a groundbreaking discovery, detecting evidence of cosmic-scale wind coming from the supermassive black hole at the center of the Milky Way galaxy. The black hole, known as Sagittarius A*, has puzzled the scientific community for over 50 years due to its eerily quiet nature. Despite its massive size, with a mass of about 4 million suns, the black hole has not been observed to expel material in the form of wind or jets, unlike other black holes.

The Discovery

After five years of observations, researchers Mark Gorski and Lena Murchikova from Northwestern University believe they have found signs of the missing wind. Using the Atacama Large Millimeter/Submillimeter Array (ALMA) radio telescopes in Chile, the team created a highly detailed image of the black hole’s surrounding area. The image revealed a large, cone-shaped cavity devoid of cold gas, which could only have been sculpted by a wind of hot gas coming directly from the black hole.

The researchers then used NASA’s Chandra X-ray Observatory to confirm that the cold gas in the region was being sculpted by hot plasma, or electrically charged gas, coming from the galactic center. While the team did not directly detect the particles moving in the wind, they were able to deduce the direction and energy of the wind.

Implications

The discovery of the wind’s presence is a significant breakthrough, as it helps to explain how supermassive black holes interact with their host galaxies. The wind is thought to play a critical role in regulating the growth of the galaxy and pumping energy into it. The findings also suggest that Sagittarius A* is not as unusual as previously thought, and that its quiet nature is likely due to its current state of low activity.

Original reporting: KRDO (Colorado Springs metro) — read the source article.