An international team of researchers has identified a number of elusive exoplanets by developing a new technique that might find many more to come.
Exoplanet research is one of the most exciting new fields in astronomy thanks to powerful new telescopes and innovative discovery techniques to help identify planets orbiting stars other than our sun, but it isn’t always easy. Now, however, an international team of researchers has devised a way to identify more elusive exoplanets that have previously thwarted confirmation.by looking at a star and measuring its luminosity.
“This is where CHEOPS comes into play: Focusing on a single-star at a time, CHEOPS is a follow-up mission which is perfect to continue observing these stars to find the missing bits of information,” said team member Dr. Solène Ulmer-Moll of the Universities of Bern and Geneva. To narrow down the most likely windows for follow-up transits, Osborn developed software that took what was known about the exoplanet candidates and produced a number of possible transit windows, which then allowed the team to secure precious time with the CHEOPS satellite.
“We then play a sort of ‘hide and seek’ game with the planets, using the CHEOPS satellite,” Osborn said. “We point CHEOPS towards a target at a given time, and depending if we observe a transit or not, we can eliminate some of the possibilities and try again at another time until there is a unique solution for the orbital period.”
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