Most of the supermassive black holes that can be found from the Earth’s perspective are located at the heart of the galaxy, and it is generally believed that the center of most galaxies contains a supermassive black hole, including the same black hole in the center of the Milky Way. Scientists had predicted that large The supermassive black hole near the center of the galaxy will be surrounded by stellar-mass black holes. However, previous search for the center of the galaxy, Sagittarius A*, the closest superhuman black hole, has not been successful. .
This time, Columbia University astronomer Charles Hayley and colleagues used the Chandra X-ray Observatory telescope to obtain a large amount of archived data. The outstanding feature of this telescope is its combination of high spatial resolution and spectral resolution. X-ray astronomy entered the spectral era from the era of photometry and is therefore considered a landmark space telescope in the X-ray field.
After analysis, the research team reported that they found 12 inactive low-mass X-ray binary systems—one of the two-star systems—in a one-second gap (about 3.3 light-years) from Sagittarius A*. This is the black hole. Team members said that this is because there is a gas dust halo in Sagittarius A*, which provides a perfect 'birthplace' for massive stars, where these stars live, die, or turn into black holes. The halo periphery The black holes were all constrained by Sagittarius A*. Some of them were combined with the passing stars to form a black hole-star binary system.
The researchers propose that the properties and spatial distribution of these X-ray binary satellite systems indicate that there are hundreds of black holes associated with the binary system within one second of our galactic center, and there are more independent black holes.