HATS-11b and HATS-12b: Two Transiting Hot Jupiters Orbiting Subsolar Metallicity Stars Selected for the K2 Campaign 7
Article
Article Title | HATS-11b and HATS-12b: Two Transiting Hot Jupiters Orbiting Subsolar Metallicity Stars Selected for the K2 Campaign 7 |
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ERA Journal ID | 1048 |
Article Category | Article |
Authors | Rabus, M. (Author), Jordan, A. (Author), Hartman, J. D. (Author), Bakos, G. A. (Author), Espinoza, N. (Author), Brahm, R. (Author), Penev, K. (Author), Ciceri, S. (Author), Zhou, G. (Author), Bayliss, D. (Author), Mancini, L. (Author), Bhatti, W. (Author), de Val-Borro, M. (Author), Csbury, Z. (Author), Sato, B. (Author), Tan, T. -G. (Author), Henning, T. (Author), Schmidt, B. (Author), Bento, J. (Author), Suc, V. (Author), Noyes, R. (Author), Lazar, J. (Author), Papp, I. (Author) and Sari, P. (Author) |
Journal Title | The Astronomical Journal |
Journal Citation | 152 (4), pp. 1-13 |
Article Number | 88 |
Number of Pages | 13 |
Year | 2016 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-6256 |
1538-3881 | |
Digital Object Identifier (DOI) | https://doi.org/10.3847/0004-6256/152/4/88 |
Web Address (URL) | https://iopscience.iop.org/article/10.3847/0004-6256/152/4/88 |
Abstract | We report the discovery of two transiting extrasolar planets from the HATSouth survey. HATS-11, a V = 14.1 G0-star shows a periodic mmag dip in its light curve every 3.6192 days and a radial velocity variation consistent with a Keplerian orbit. HATS-11 has a mass of 1.0000 0.060 M⊙, a radius of 1.444 ± 0.057 R⊙ and an effective temperature of 6060 ± 150 K, while its companion is a 0.85 ± 0.12 MJ, 1.510 ± 0.078 RJ planet in a circular orbit. HATS-12 shows a periodic 5.1 mmag flux decrease every 3.1428 days and Keplerian RV variations around a V = 12.8 F-star. HATS-12 has a mass of 1.489 ± 0.071 M⊙, a radius of 2.21 ± 0.21 R⊙, and an effective temperature of 6408 ± 75 K. For HATS-12b, our measurements indicate that this is a 2.38 ± 0.11 MJ, 1.35 ± 0.17 RJ planet in a circular orbit. Both host stars show subsolar metallicities of -0.390 ± 0.060 dex and dex, respectively, and are (slightly) evolved stars. In fact, HATS-11 is among the most metal-poor and, HATS-12, with a log g∗ of 3.923 0.0065, is among the most evolved stars hosting a hot-Jupiter planet. Importantly, HATS-11 and HATS-12 have been observed in long cadence by Kepler as part of K2 campaign 7 (EPIC216414930 and EPIC218131080 respectively). |
Keywords | planetary systems; stars: individual (HATS-11; HATS-12); techniques:; photometric; techniques: spectroscopic; Astrophysics - Earth and; Planetary Astrophysics |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Institution of Origin | University of Southern Queensland |
Byline Affiliations | Pontifical Catholic University of Chile, Chile |
Princeton University, United States | |
Max Planck Society, Germany | |
Australian National University | |
Tokyo Institute of Technology, Japan | |
Perth Exoplanet Survey Telescope Observatory, Australia | |
Center for Astrophysics Harvard and Smithsonian, United States | |
Hungarian Astronomical Association, Hungary |
https://research.usq.edu.au/item/q6x5v/hats-11b-and-hats-12b-two-transiting-hot-jupiters-orbiting-subsolar-metallicity-stars-selected-for-the-k2-campaign-7
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