HATS-47b, HATS-48Ab, HATS-49b, and HATS-72b: Four Warm Giant Planets Transiting K Dwarfs
Article
Article Title | HATS-47b, HATS-48Ab, HATS-49b, and HATS-72b: Four Warm Giant Planets Transiting K Dwarfs |
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ERA Journal ID | 1048 |
Article Category | Article |
Authors | Hartman, J. D. (Author), Jordan, Andres (Author), Bayliss, D. (Author), Bakos, G. A. (Author), Bento, J. (Author), Bhatti, W. (Author), Brahm, R. (Author), Csubry, Z. (Author), Espinoza, N. (Author), Henning, Th. (Author), Mancini, L. (Author), Penev, K. (Author), Rabus, M. (Author), Sarkis, P. (Author), Suc, V. (Author), de Val-Borro, M. (Author), Zhou, G. (Author), Crane, J. D. (Author), Shectman, S. (Author), Teske, J. K. (Author), Wang, S. X. (Author), Butler, R. P. (Author), Lazar, J. (Author), Papp, I. (Author), Sari, P. (Author), Anderson, D. R. (Author), Hellier, C. (Author), West, R. G. (Author), Barkaoui, K. (Author), Pozuelos, F. J. (Author), Jehin, E. (Author), Gillon, M. (Author), Nielsen, L. (Author), Lendl, M. (Author), Udry, S. (Author), Ricker, George R. (Author), Vanderspek, Roland (Author), Latham, David W. (Author), Seager, S. (Author), Winn, Joshua N. (Author), Christiansen, Jessie (Author), Crossfield, Ian J. M. (Author), Henze, Christopher E. (Author), Jenkins, Jon M. (Author), Smith, Jeffrey C. (Author) and Ting, Eric B. (Author) |
Journal Title | The Astronomical Journal |
Journal Citation | 159 (4), pp. 1-23 |
Article Number | 173 |
Number of Pages | 23 |
Year | 2020 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-6256 |
1538-3881 | |
Digital Object Identifier (DOI) | https://doi.org/10.3847/1538-3881/ab7821 |
Web Address (URL) | https://iopscience.iop.org/article/10.3847/1538-3881/ab7821 |
Abstract | We report the discovery of four transiting giant planets around K dwarfs. The planets HATS-47b, HATS-48Ab, HATS- 49b, and HATS-72b have masses of 0.369-0.021+0.031MJ, 0.243-0.030+0.022 MJ, 0.353-0.027+0.038 MJ, and 0.1254 ± 0.0039 MJ, respectively, and radii of 1.117 ± 0.014 RJ, 0.800 ± 0.015 RJ, 0.765 ± 0.013 RJ, and 0.7224 ± 0.0032 RJ, respectively. The planets orbit close to their host stars with orbital periods of 3.9228 days, 3.1317 days, 4.1480 days, and 7.3279 days, respectively. The hosts are main-sequence K dwarfs with masses of 0.674-0.012+0.016 M⊙, 0.7279 ± 0.0066 M⊙, 0.7133 ± 0.0075 M⊙, and 0.7311 ± 0.0028, and with V-band magnitudes of V = 14.829 ± 0.010, 14.35 ± 0.11, 14.998 ± 0.040 and 12.469 ± 0.010. The super-Neptune HATS-72b (a.k.a. WASP-191b and TOI 294.01) was independently identified as a transiting planet candidate by the HATSouth, WASP, and TESS surveys, and we present a combined analysis of all of the data gathered by each of these projects (and their follow-up programs). An exceptionally precise mass is measured for HATS-72b thanks to high-precision radial velocity (RV) measurements obtained with VLT/ESPRESSO, FEROS, HARPS, and Magellan/PFS. We also incorporate TESS observations of the warm Saturn-hosting systems HATS-47 (a.k.a. TOI 1073.01), HATS-48A, and HATS-49. HATS-47 was independently identified as a candidate by the TESS team, while the other two systems were not previously identified from the TESS data. The RV orbital variations are measured for these systems using Magellan/PFS. HATS-48A has a resolved 5′.4 neighbor in Gaia DR2, which is a common-proper-motion binary star companion to HATS-48A with a mass of 0.22 M⊙ and a current projected physical separation of ∼1400 au. |
Keywords | Exoplanets; Extrasolar gas giants; Hot Jupiters; Transits; 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 | Princeton University, United States |
Adolfo Ibanez University, Chile | |
University of Warwick, United Kingdom | |
Australian National University | |
Millennium Institute of Astrophysics, Chile | |
Space Telescope Science Institute, United States | |
Max Planck Society, Germany | |
University of Texas at Dallas, United States | |
Las Cumbres Observatory, United States | |
Pontifical Catholic University of Chile, Chile | |
NASA Goddard Space Flight Center, United States | |
Center for Astrophysics Harvard and Smithsonian, United States | |
Carnegie Institution of Washington, United States | |
Hungarian Astronomical Association, Hungary | |
Keele University, United Kingdom | |
University of Liege, Belgium | |
University of Geneva, Switzerland | |
Massachusetts Institute of Technology, United States | |
National Aeronautics and Space Administration (NASA), United States | |
NASA Ames Research Center, United States |
https://research.usq.edu.au/item/q6x40/hats-47b-hats-48ab-hats-49b-and-hats-72b-four-warm-giant-planets-transiting-k-dwarfs
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