HAT-P-49b: A 1.7 Mj Planet Transiting a Bright 1.5 M⊙S F-Star

Bieryla, A. and Hartman, J. D. and Bakos, Gáspár and Bhatti, W. and Kovács, Géza and Boisse, I. and Latham, D. W. and Buchhave, L. A. and Csubry, Zoltán and Penev, K. and de Val-Borro, M. and Béky, B. and Falco, E. and Torres, G. and Noyes, R. W. and Berlind, P. and Calkins, M. C. and Esquerdo, G. A. and Lázár, J. and Papp, I. and Sári, P. (2014) HAT-P-49b: A 1.7 Mj Planet Transiting a Bright 1.5 M⊙S F-Star. ASTRONOMICAL JOURNAL, 147 (4). ISSN 0004-6256

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Abstract

We report the discovery of the transiting extrasolar planet HAT-P-49b. The planet transits the bright (V = 10.3) slightly evolved F-star HD 340099 with a mass of 1.54 M⊙ and a radius of 1.83 R⊙. HAT-P-49b is orbiting one of the 25 brightest stars to host a transiting planet which makes this a favorable candidate for detailed follow-up. This system is an especially strong target for Rossiter- McLaughlin follow-up due to the host star’s fast rotation, 16 km s−1. The planetary companion has a period of 2.6915 d, mass of 1.73 MJ and radius of 1.41 RJ. The planetary characteristics are consistent with that of a classical hot Jupiter but we note that this is the fourth most massive star to host a transiting planet with both Mp and Rp well determined.

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