We report the validation and characterization of three new transiting exoplanets using SOPHIE radial velocities : KOI-614b , KOI-206b , and KOI-680b .
KOI-614b has a mass of 2.86 \pm 0.35 ~ { } { M _ { Jup } } and a radius of 1.13 ^ { +0.26 } _ { -0.18 } ~ { } { R _ { Jup } } , and it orbits a G0 , metallic ( [ Fe/H ] = 0.35 \pm 0.15 ) dwarf in 12.9 days .
Its mass and radius are familiar and compatible with standard planetary evolution models , so it is one of the few known transiting planets in this mass range to have an orbital period over ten days .
With an equilibrium temperature of T _ { eq } = 1000 \pm 45 K , this places KOI-614b at the transition between what is usually referred to as “ hot ” and “ warm ” Jupiters .
KOI-206b has a mass of 2.82 \pm 0.52 ~ { } { M _ { Jup } } and a radius of 1.45 \pm 0.16 ~ { } { R _ { Jup } } , and it orbits a slightly evolved F7-type star in a 5.3-day orbit .
It is a massive inflated hot Jupiter that is particularly challenging for planetary models because it requires unusually large amounts of additional dissipated energy in the planet .
On the other hand , KOI-680b has a much lower mass of 0.84 \pm 0.15 ~ { } { M _ { Jup } } and requires less extra-dissipation to explain its uncommonly large radius of 1.99 \pm 0.18 ~ { } { R _ { Jup } } .
It is one of the biggest transiting planets characterized so far , and it orbits a subgiant F9-star well on its way to the red giant stage , with an orbital period of 8.6 days .
With host stars of masses of 1.46 \pm 0.17 ~ { } \hbox { $M _ { \odot } $ } and 1.54 \pm 0.09 ~ { } \hbox { $M _ { \odot } $ } , respectively , KOI-206b , and KOI-680b are interesting objects for theories of formation and survival of short-period planets around stars more massive than the Sun .
For those two targets , we also find signs of a possible distant additional companion in the system .