The discovery of the new planet BEBOP-1c confirms the 2nd-ever known planetary system orbiting twin stars.
In contrast, in the new study, the researchers were monitoring this binary system by looking for wobbles in the orbits of the stars. This"radial velocity" method can detect the gravitational tug of planets. The gravity of a planet is related to its mass, so this wobbling can help reveal how much a planet weighs.
"Until now, circumbinary planets have been discovered in transit by the Kepler and TESS space telescopes, which cost hundreds of millions of dollars," Standing said. This new discovery is powerful because it shows"you don't need expensive space telescopes to detect these planets." Instead, they can also be discovered using the radial-velocity technique"from ground-based telescopes with careful planning and target selection.
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