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HAT-P-42b and HAT-P-43b. Two inflated transiting hot Jupiters from the HATNet Survey

Author(s): Boisse, I; Hartman, Joel D.; Bakos, Gaspar Aron; Penev, K; Csubry, Zoltan; et al

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Abstract: Aims. We announce the discovery of two new tran siting planets, and provide their accurate initial characterization. Methods. First identified from the HATNet wide-fiel d photometric survey, these candidate tr ansiting planets we re then followed-up with a variety of photometric observations. Determining the planetary nature of the objects and characterizing the parameters of the systems were mainly done with the SOPHIE spectrograph at the 1.93 m telescope at OHP and the TRES spectrograph at the 1.5 m telescope at FLWO. Results. HAT-P-42b and HAT-P-43b are typical hot Jupiters on circular orbits around early-G / late-F main sequence host stars, with periods of 4 . 641878 ± 0 . 000032 and 3 . 332687 ± 0 . 000015 days, masses of 1 . 044 ± 0 . 083 and 0 . 662 ± 0 . 060 M J , and radii of 1 . 280 ± 0 . 153 and 1 . 281 + 0 . 062 − 0 . 033 R J , respectively. These discoveries increase the sample of planets with measured mean densities, which are needed to constrain theories of planetary interiors and atmospheres. Moreover, their hosts are relatively bright ( V < 13 . 5), which facilitates further follow-up studies.
Publication Date: Oct-2013
Electronic Publication Date: 9-Oct-2013
Citation: Boisse, I, Hartman, JD, Bakos, GÁ, Penev, K, Csubry, Z, Béky, B, Latham, DW, Bieryla, A, Torres, G, Kovács, G, Buchhave, LA, Hansen, T, Everett, M, Esquerdo, GA, Szklenár, T, Falco, E, Shporer, A, Fulton, BJ, Noyes, RW, Stefanik, RP, Lázár, J, Papp, I, Sári, P. (2013). HAT-P-42b and HAT-P-43b. Two inflated transiting hot Jupiters from the HATNet Survey. åp, 558 (A86 - A86. doi:10.1051/0004-6361/201220993
DOI: doi:10.1051/0004-6361/201220993
Type of Material: Journal Article
Journal/Proceeding Title: Astronomy & Astrophysics
Version: Final published version. This is an open access article.

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