Spin-orbit measurements and refined parameters for the exoplanet systems WASP-22 and WASP-26
Spin-orbit measurements and refined parameters for the exoplanet systems WASP-22 and WASP-26
We report on spectroscopic and photometric observations through transits of the exoplanets WASP-22b and WASP-26b, intended to determine the systems' spin-orbit angles. We combine these data with existing data to refine the system parameters. We measure a sky-projected spin-orbit angle of 22 +/- 16 deg for WASP-22b, showing the planet's …