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Csubry","submitted_at":"2015-11-19T18:50:14Z","abstract_excerpt":"We report the discovery of HATS-15 b and HATS-16 b, two massive transiting extrasolar planets orbiting evolved ($\\sim 10$ Gyr) main-sequence stars. The planet HATS-15 b, which is hosted by a G9V star ($V=14.8$ mag), is a hot Jupiter with mass of $2.17\\pm0.15\\, M_{\\mathrm{J}}$ and radius of $1.105\\pm0.0.040\\, R_{\\mathrm{J}}$, and completes its orbit in nearly 1.7 days. HATS-16 b is a very massive hot Jupiter with mass of $3.27\\pm0.19\\, M_{\\mathrm{J}}$ and radius of $1.30\\pm0.15\\, R_{\\mathrm{J}}$; it orbits around its G3 V parent star ($V=13.8$ mag) in $\\sim2.7$ days. 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Jord\\'an, A.W. Howard, B.J. Fulton, B. Schmidt, D. Bayliss, G.\\'A. Bakos, G.W. Marcy, G. Zhou, H. Isaacson, I. Papp, I. Thompson, J. Crane, J.D. Hartman, J. L\\'az\\'ar, K. Penev, L. Mancini, M. de Val-Borro, M. Rabus, N. Espinoza, P. Arriagada, P. Sari, R. Brahm, R. Noyes, R.P. Butler, S. Ciceri, S. Shectman, T.G. Tan, T. Henning, V. Suc, W. Bhatti, Z. Csubry","submitted_at":"2015-11-19T18:50:14Z","abstract_excerpt":"We report the discovery of HATS-15 b and HATS-16 b, two massive transiting extrasolar planets orbiting evolved ($\\sim 10$ Gyr) main-sequence stars. The planet HATS-15 b, which is hosted by a G9V star ($V=14.8$ mag), is a hot Jupiter with mass of $2.17\\pm0.15\\, M_{\\mathrm{J}}$ and radius of $1.105\\pm0.0.040\\, R_{\\mathrm{J}}$, and completes its orbit in nearly 1.7 days. 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