Astronomers have identified S301, a star currently holding the record for the fastest orbital velocity around the supermassive black hole Sagittarius A* at the center of the Milky Way. The discovery was made through the analysis of long-term observational data tracking the orbits of high-velocity stars in the galactic core.
The star orbits Sagittarius A*, a black hole with a mass equivalent to millions of suns. Due to its close proximity to the black hole, S301 experiences extreme gravitational forces, which result in its record-breaking orbital speed. This velocity is significantly higher than that of the Sun as it orbits the galactic center.
Researchers utilize such high-velocity stars as natural probes to study the environment near the black hole. These observations allow scientists to test predictions of Einstein's general relativity, including orbital shifts, time dilation, and spectral changes, within intense gravitational fields.
Tracking the orbital paths of stars like S301 provides critical data on the properties of the black hole and the distribution of matter in the galactic center, an area otherwise obscured by dense dust. Future observations with next-generation telescopes are expected to yield more data on these extreme environments.
