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|Abstract:||We report the discovery of HATS-15 b and HATS-16 b, two massive transiting extrasolar planets orbiting evolved (∼10 Gyr) main-sequence stars. The planet HATS-15 b, which is hosted by a G9 V star (V = 14.8 mag), is a hot Jupiter with mass of 2.17 0.15 MJ and radius of 1.105 0.040 RJ, and it completes its orbit in about 1.7 days. HATS-16 b is a very massive hot Jupiter with mass of 3.27 0.19 MJ and radius of 1.30 0.15 ; RJ it orbits around its G3 V parent star (V = 13.8 mag) in ∼2.7 days. HATS-16 is slightly active and shows a periodic photometric modulation, implying a rotational period of 12 days, which is unexpectedly short given its isochronal age. This fast rotation might be the result of the tidal interaction between the star and its planet.|
|Electronic Publication Date:||10-Jun-2016|
|Citation:||Ciceri, S, Mancini, L, Henning, T, Bakos, G, Penev, K, Brahm, R, Zhou, G, Hartman, JD, Bayliss, D, Jordán, A, Csubry, Z, de Val-Borro, M, Bhatti, W, Rabus, M, Espinoza, N, Suc, V, Schmidt, B, Noyes, R, Howard, AW, Fulton, BJ, Isaacson, H, Marcy, GW, Butler, RP, Arriagada, P, Crane, JD, Shectman, S, Thompson, I, Tan, TG, Lázár, J, Papp, I, Sari, P. (2016). HATS-15b and HATS-16b: Two Massive Planets Transiting Old G Dwarf Stars. Publications of the Astronomical Society of the Pacific, 128 (074401 - 074401. doi:10.1088/1538-3873/128/965/074401|
|Type of Material:||Journal Article|
|Journal/Proceeding Title:||Publications of the Astronomical Society of the Pacific|
|Version:||Final published version. This is an open access article.|
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