CWISE J124909+362116.0 (J1249+36), an exceptionally uncommon and ancient star, has been found by scientists. It is among the oldest stars in the Milky Way galaxy. This hypervelocity star is expected to be ejected into intergalactic space at a speed of 600 km/sec. While searching through telescope data for signs regarding the existence of the mysterious Planet Nine, scientists discovered the star, an L subdwarf. The discovery was revealed at the American Astronomical Society’s 244th meeting.
The remarkable speed of J1249+36 can be explained in three ways. Initially, it could have been kicked out of a binary system containing a white dwarf star. Ultra-dense white dwarfs may be unstable if they have a binary companion and shine due to leftover heat rather than fusion.
Second, a many-body interaction inside the Milky Way may cause the star’s velocity, especially in crowded places like globular clusters, which are home to millions of stars. Third, J1249+36 may originate from one of the several satellite dwarf galaxies that orbit the Milky Way instead of the Milky Way itself. An extragalactic origin for hypervelocity stars was found trustworthy in a 2017 research investigating their origins, and scientists think this might also account for the speed of J1249+36.
