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

Brahm, R. and Jordan, A. and Hartman, J. D. and Bakos, G. A. and Bayliss, D. and Penev, K. and Zhou, G. ORCID: https://orcid.org/0000-0002-4891-3517 and Ciceri, S. and Rabus, M. and Espinoza, N. and Mancini, L. and de Val-Borro, M. and Bhatti, W. and Sato, B. and Tan, T. G. and Csubry, Z. and Buchhave, L. and Henning, T. and Schmidt, B. and Suc, V. and Noyes, R. W. and Papp, I. and Lazar, J. and Sari, P. (2015) HATS9-b and HATS10-b: Two Compact Hot Jupiters in Field 7 of the K2 Mission. The Astronomical Journal, 150 (1):33. pp. 1-13. ISSN 0004-6256

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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 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 0.85g cm-3. HATS-10b orbits a V = 13.1 G dwarf star with a period 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 and radius of 0.97 , 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.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 31 Jan 2022 22:45
Last Modified: 31 Jan 2022 22:45
Uncontrolled Keywords: planetary systems; stars: individual: HATS-9; GSC 6305-02502; HATS-10; GSC 6311-00085; techniques: photometric; techniques:; spectroscopic; Astrophysics - Earth and Planetary Astrophysics; Astrophysics - Solar and Stellar Astrophysics
Fields of Research (2008): 02 Physical Sciences > 0201 Astronomical and Space Sciences > 020110 Stellar Astronomy and Planetary Systems
Fields of Research (2020): 51 PHYSICAL SCIENCES > 5101 Astronomical sciences > 510109 Stellar astronomy and planetary systems
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
Socio-Economic Objectives (2020): 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280120 Expanding knowledge in the physical sciences
Identification Number or DOI: https://doi.org/10.1088/0004-6256/150/1/33
URI: http://eprints.usq.edu.au/id/eprint/44972

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