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# HATS9-b and HATS10-b: Two Compact Hot Jupiters in Field 7 of the K2 Mission

## Author(s): Brahm, R; Jordán, A.; Hartman, Joel D.; Bakos, Gaspar Aron; Bayliss, D; et al

To refer to this page use: http://arks.princeton.edu/ark:/88435/pr1g11b
 Abstract: We report the discovery of two transiting extrasolar planets by the HATSouth survey. HATS-9b orbits an old (10.8 ± 1.5 Gyr) V = 13.3 G dwarf star with a period P » 1.9153 days. The host star has a mass of 1.03 M☉, radius of 1.503 R☉ , and effective temperature 5366 ± 70 K. The planetary companion has a mass of 0.837 MJ and radius of 1.065 RJ, yielding a mean density of 0.85 - g cm 3. HATS-10b orbits a V = 13.1 G dwarf star with a period P » 3.3128 days. The host star has a mass of 1.1 M☉, radius of 1.11 R☉ , and effective temperature 5880 ± 120 K. The planetary companion has a mass of 0.53 MJ and radius of 0.97 RJ, yielding a mean density of 0.7 - g cm 3. Both planets are compact in comparison with planets receiving similar irradiation from their host stars and lie in the nominal coordinates of Field 7 of K2, but only HATS-9b falls on working silicon. Future characterization of HATS-9b with the exquisite photometric precision of the Kepler telescope may provide measurements of its reflected light signature. Publication Date: Jul-2015 Electronic Publication Date: 7-Jul-2015 Citation: Brahm, R, Jordán, A, Hartman, JD, Bakos, GÁ, Bayliss, D, Penev, K, Zhou, G, Ciceri, S, Rabus, M, Espinoza, N, Mancini, L, de Val-Borro, M, Bhatti, W, Sato, B, Tan, TG, Csubry, Z, Buchhave, L, Henning, T, Schmidt, B, Suc, V, Noyes, RW, Papp, I, Lázár, J, Sári, P. (2015). HATS9-b and HATS10-b: Two Compact Hot Jupiters in Field 7 of the K2 Mission. \aj, 150 (33 - 33. doi:10.1088/0004-6256/150/1/33 DOI: doi:10.1088/0004-6256/150/1/33 Type of Material: Journal Article Journal/Proceeding Title: Astronomical Journal Version: Final published version. Article is made available in OAR by the publisher's permission or policy.

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