NGTS-6b: An Ultra Hot-Jupiter Orbiting a Metal-rich star

We report the discovery of a new ultra hot Jupiterfrom the Next Generation Transit Survey. NGTS-6b orbits its star with a period of 21.17 h, and has a mass and radius of $1.330^{+0.024}_{-0.028}\,M_\text{J}$ and $1.271^{+0.197}_{-0.188}\,R_\text{J}$ respectively. Conforming to the currently known small population of ultra hot Jupiters, the planetis also found to orbit a metal-rich star ([Fe/H]$=+0.11\pm0.09$ dex). Photoevaporationmodels suggest the planetshould have lost 5% of its gaseous atmosphere over the course of the 9.6 Gyrs of evolution of the system. NGTS-6b adds to the small, but growing, list of ultra-short period gas giant planets, and will help us to understand the dominant formation and evolutionary mechanisms that govern this population.