Qatar Exoplanet Survey: Qatar-8b, 9b, and 10b—A Hot Saturn and Two Hot Jupiters

In this paper we present three new extrasolar planets from the Qatar Exoplanet Survey. Qatar-8b is a hot Saturn, with M _P = 0.37 M _J and R _P = 1.3 R _J, orbiting a solar-like star every P _orb = 3.7 days. Qatar-9b is a hot Jupiter with a mass of M _P = 1.2 M _J and a radius of R _P = 1 R _J, in an orbit of P _orb = 1.5 days around a low mass, M _⋆ = 0.7 M _⊙, mid-K main-sequence star. Finally, Qatar-10b is a hot, T _eq ∼ 2000 K, sub-Jupiter mass planet, M _P = 0.7 M _J, with a radius of R _P = 1.54 R _J and an orbital period of P _orb = 1.6 days, placing it on the edge of the sub-Jupiter desert.