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Description
We report the discovery of KELT-14b and KELT-15b, two hot Jupiters from the KELT-South survey. KELT-14b, an independent discovery of the recently announced WASP-122b, is an inflated Jupiter mass planet that orbits a ~5.0_-0.7_^+0.3^ Gyr, V=11.0, G2 star that is near the main sequence turnoff. The host star, KELT-14 (TYC 7638-981-1), has an inferred mass M_*_=1.18_-0.07_^+0.05^ M_{sun}_ and radius R_*_=1.37+/-0.08 R_{sun}_, and has T_eff_=5802_-92_^+95^ K, log g_*_=4.23_-0.04_^+0.05^ and [Fe/H]=0.33+/-0.09. The planet orbits with a period of 1.7100588+/-0.0000025 days (T_0_=2457091.02863+/-0.00047) and has a radius R_p_=1.52_-0.11_^+0.12^ R_J_ and mass M_p_=1.196+/-0.072 M_J_, and the eccentricity is consistent with zero. KELT-15b is another inflated Jupiter mass planet that orbits a ~4.6_-0.4_^+0.5^ Gyr, V=11.2, G0 star (TYC 8146-86-1) that is near the "blue hook" stage of evolution prior to the Hertzsprung gap, and has an inferred mass M_*_=1.181_-0.050_^+0.051^ M_{sun}_ and radius R_*_=1.48_-0.04_^+0.09^ R_{sun}_, and T_eff_=6003_-52_^+56^ K, log g_*_=4.17_-0.04_^+0.02^ and [Fe/H]=0.05+/-0.03. The planet orbits on a period of 3.329441+/-0.000016 days (T_0_=2457029.1663+/-0.0073) and has a radius R_p_=1.443_-0.057_^+0.11^ R_J_ and mass M_p_=0.91_-0.22_^+0.21^ M_J_ and an eccentricity consistent with zero. KELT-14b has the second largest expected emission signal in the K-band for known transiting planets brighter than K<10.5. Both KELT-14b and KELT-15b are predicted to have large enough emission signals that their secondary eclipses should be detectable using ground-based observatories.
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