The researchers asked a strange question: Did the Earth’s sun have a twin?? And the data they obtained were real evidence that made them ask about that, because the sun may have a stellar companion that may have been washed away by other astronomical bodies, and it is somewhere in the Milky Way. The sun may be one of these stars.
According to the British newspaper “Daily Mail”, the team suggests that the transiting stars in the birth group may have removed the second sun through the effect of gravity, and they may be lurking anywhere in the Milky Way.
The data suggests that our twin stars will be similar in mass and will explain the existence of the “Oort Cloud,” which is a collection of debris left over from the formation of the solar system that orbits our sun at a distance.
Another sun could also lend credence to the existence of Planet Nine, an object that theoretically could hide in the outer reaches of the solar system.
Astronomers believe that Planet Nine is five to 15 times larger than Earth, but it will be difficult to collect enough material so far from the sun to form a planet of this size.
“Binary stars are better at pulling out and capturing debris,” said Avi Loeb, a Harvard science professor and co-author of a new report published in The Astrophysical Journal Letters.
The study revealed: “If the Oort cloud formed as observed, this means that the sun actually has a companion with the same mass that was lost before the sun leaves its birth group.”
“Binary systems are more efficient at capturing objects than single stars,” Loeb said, adding that their model predicts more objects with a similar orbital direction to Planet Nine.