ASTEP confirmation of a pair of long-period Jupiter-sized planets with extremely low densities transiting TOI-791

Georgina Dransfield, Antoine C. Petit, Amaury H. M. J. Triaud +45

Gas giant planets with periods $20<P<300\mathrm{days}$ orbiting Sun-like stars are a relatively uncommon outcome of planetary formation, and key questions about the nature and form…