Scientists have made a groundbreaking discovery, detecting evidence of a 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

Using the Atacama Large Millimeter/Submillimeter Array (ALMA) radio telescopes in Chile, researchers Mark Gorski and Lena Murchikova 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 object itself.

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 wind itself was not directly detected, the researchers were able to deduce its direction and energy.

Implications

The discovery of the wind’s presence is a significant breakthrough, as it helps to explain how supermassive black holes launch winds and regulate the growth of their host galaxies. The findings also provide new insights into the behavior of black holes, which are still not fully understood.

The researchers plan to expand the map of cold gas to a larger region to diagnose the full impact of the wind. They also want to create a ‘movie’ of the gas approaching the black hole to observe how the clouds move and estimate how much gas the black hole consumes.

Original reporting: KEYT (Ventura/Santa Barbara) — read the source article.