HATS-50b through HATS-53b: four transiting hot Jupiters orbiting G-type stars discovered by the HATSouth survey
Henning, Th. · Mancini, L. · Sarkis, P. · Bakos, G. A. · Hartman, J. D. · Bayliss, D. · Bento, J. · Bhatti, W. · Brahm, R. · Ciceri, S. · Csubry, Z. · de Val-Borro, M. · Espinoza, N. · Fulton, B. J. · Howard, A. W. · Isaacson, H. T. · Jordan, A. · Marcy, G. W. · Penev, K. · Rabus, M. · Suc, V. · Tan, T. G. · Tinney, C. G. · Wright, D. J. · Zhou, G. · Durkan, S. · Lazar, J. · Papp, I. · Sari, P.
الأصل · EN
We report the discovery of four close-in transiting exoplanets, HATS-50 through HATS-53, discovered using the HATSouth three-continent network of homogeneous and automated telescopes. These new exoplanets belong to the class of hot Jupiters and orbit G-type dwarf stars, with brightness in the range V=12.5-14.0 mag. While HATS-53 has many physical characteristics similar to the Sun, the other three stars appear to be metal rich, larger and more massive. Three of the new exoplanets, namely HATS-50, HATS-51 and HATS-53, have low density and similar orbital period. Instead, HATS-52 is more dense and has a shorter orbital period. It also receives an intensive radiation from its parent star and, consequently, presents a high equilibrium temperature. HATS-50 shows a marginal additional transit feature consistent with an ultra-short period hot super Neptune, which will be able to be confirmed with TESS photometry.
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