by Using observations made with the Hubble space telescope, astronomers confirmed the existence of a planet that orbit two stars in the system OGLE-2007-BLG-349.
Maryland, united States.-Using the technique of gravitational microlensing, NASA scientists were able to observe a planet that orbits two stars are red dwarfs, which is 8 billion light-years away toward the center of the Milky Way, reported Tech Times.
David Bennett, the main author of an article that will be published in Astronomical Journal, explained that "the observations from earth suggested two possible scenarios for this system of three objects: a planet with a mass similar to that of Saturn orbiting a pair of binary stars that are nearby, or a planet with the mass of Saturn and a planet of earth’s mass orbiting around a single star."
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Using images taken by the Hubble space telescope, astronomers were able to observe that the light of the stars of the system in the foreground was too weak to be a single star, but had the correct brightness of two red dwarfs nearby orbitaban each other.
"One of the cameras of the telescope (Wide Field Planetary Camera 2), has helped us in the analysis of the alignment almost perfect for the binary stars of the foreground with the background star, which greatly expands the light and allowed us to see the signal of the two stars," said Bennett.
The researchers made sure that now that he has confirmed the efficiency to detect planets orbiting systems of pairs of stars. using the technique of gravitational microlensing, it is very likely that you will find more cases like this.
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