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HATS-1b: THE FIRST TRANSITING PLANET DISCOVERED BY THE HATSouth SURVEY

2012; Institute of Physics; Volume: 145; Issue: 1 Linguagem: Inglês

10.1088/0004-6256/145/1/5

1538-3881

K. Penev, G. Á. Bakos, D. Bayliss, Andrés Jordán, M. Mohler, George Zhou, V. Suc, M. Rabus, J. D. Hartman, L. Mancini, B. Béky, Z. Csubry, Lars A. Buchhave, Thomas Henning, Nikolay Nikolov, B. Csák, Rafael Brahm, Néstor Espinoza, P. Conroy, R. W. Noyes, Dimitar Sasselov, B. Schmidt, D. J. Wright, C. G. Tinney, Brett C. Addison, J. Lázár, I. Papp, P. Sári,

Astrophysics and Star Formation Studies

We report the discovery of HATS-1b, a transiting extrasolar planet orbiting the moderately bright V=12.05 G dwarf star GSC 6652-00186, and the first planet discovered by HATSouth, a global network of autonomous wide-field telescopes. HATS-1b has a period P~3.4465 d, mass Mp~1.86MJ, and radius Rp~1.30RJ. The host star has a mass of 0.99Msun, and radius of 1.04Rsun. The discovery light curve of HATS-1b has near continuous coverage over several multi-day periods, demonstrating the power of using a global network of telescopes to discover transiting planets.