HAT-P-49b: A 1.7 M_J Planet Transiting a Bright 1.5 M_S F-Star

A. Bieryla , J. D. Hartman , G. A. Bakos , W. Bhatti , G. Kovacs , I. Boisse , D. W. Latham , L. A. Buchhave

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Z. Csubry K. Penev M. de Val-Borro B. Beky E. Falco G. Torres R. W. Noyes P. Berlind M. C. Calkins G. A. Esquerdo J. Lazar I. Papp P. Sari

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classification 🌌 astro-ph.EP

keywords planettransitinghat-p-49bhostbrightf-starfollow-upmass

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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 1.54M_S and a radius of 1.83 R_S. 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 fast rotation of the host star, 16 km/s. The planetary companion has a period of 2.6915 d, mass of 1.73 M_J and radius of 1.41 R_J. 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 M_p and R_p well determined.

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HAT-P-49b: A 1.7 M_J Planet Transiting a Bright 1.5 M_S F-Star

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