Astronomers spotted fastest star US708 in Milky Way Galaxy
Astronomers at Queen’s University in Belfast have measured the speed of a wandering white dwarf star that travels though space at 1,200 kilometers per second, the highest speed ever recorded for such a celestial body in our galaxy.
The hyper-velocity unbound star, named US 708, is free of gravity, which means that is gonna leave the Milky Way sooner or later.
US 708 is fastest unbound star in Milky Way Galaxy (public domain/NASA)
It is believed that US708 was once part a solar system consisting of two stars, which also included a giant white dwarf star.
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US 708 was first discovered in 1982 by Peter Usher and colleagues of Pennsylvania State University as a faint blue object in the Milky Way halo. Sloan Digital Sky Survey measured the star again in 2005.
The current speed measurement of US708 star sheds some light on the mysteries of the solar systems composed of two stars that ultimately cause thermonuclear explosions. Thermonuclear supernovae are used to calculate the distances to distant galaxies, measurements that help researchers to determine how the universe changes and expands.
The study was conducted by scientists from several countries, including Netherlands, Germany, United Kingdom, United States and China.
Source: ScienceDaily