HAT-P-68b: A Transiting Hot Jupiter around a K5 Dwarf Star
Article
Article Title | HAT-P-68b: A Transiting Hot Jupiter around a K5 Dwarf Star |
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ERA Journal ID | 1048 |
Article Category | Article |
Authors | Lindor, Bethlee M., Hartman, Joel D, Bakos, Gáspár Á., Bhatti, Waqas, Csubry, Zoltan, Penev, Kaloyan, Bieryla, Allyson, Latham, David W., Torres, Guillermo, Buchhave, Lars A., de Val-Borro,, Howard, Andrew W., Isaacson, Howard, Fulton, Benjamin J., Boisse, Isabelle, Santerne, Alexandre, Hebrard, Guillaume, Kovács, Támás, Huang, Chelsea, Dembicky, Jack, Falco, Emilio, Everett, Mark E., Horch, Elliott P., Lázár, József, Papp, István and Sári, Pál Sári |
Journal Title | The Astronomical Journal |
Journal Citation | 161, p. 64 |
Number of Pages | 64 |
Year | 2021 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-6256 |
1538-3881 | |
Digital Object Identifier (DOI) | https://doi.org/10.3847/1538-3881/abc700 |
Web Address (URL) | https://iopscience.iop.org/article/10.3847/1538-3881/abc700 |
Abstract | We report the discovery by the ground-based Hungarian-made Automated Telescope Network (HATNet) survey of the transiting exoplanet HAT-P-68b, which has a mass of 0.724 ± 0.043 MJ, and radius of 1.072 ± 0.012 RJ. The planet is in a circular P = 2.2984 day orbit around a moderately bright V = 13.937 ± 0.030 magnitude K-dwarf star of mass ${0.673}_{-0.014}^{+0.020}$ M⊙, and radius 0.6726 ± 0.0069 R⊙. The planetary nature of this system is confirmed through follow-up transit photometry obtained with the Fred L. Whipple Observatory (FLWO) 1.2 m telescope, high-precision radial velocities measured using Keck I/High Resolution Echelle Spectrometer (HIRES), FLWO 1.5 m/Tillinghast Reflector Echelle Spectrograph (TRES), and Observatoire de Haute-Provence (OHP) 1.9 m/Sophie, and high-spatial-resolution speckle imaging from WIYN 3.5 m/DSSI. HAT-P-68 is at an ecliptic latitude of +3° and outside the field of view of both the NASA Transiting Exoplanet Survey Satellite primary mission and the K2 mission. The large transit depth of 0.036 mag (r band) makes HAT-P-68b a promising target for atmospheric characterization via transmission spectroscopy. |
Keywords | Exoplanet detection methods; Exoplanets; Transit photometry; |
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. |
Byline Affiliations | University of Washington, United States |
Princeton University, United States | |
Konkoly Observatory, Hungary | |
University of Texas at Dallas, United States | |
Center for Astrophysics Harvard and Smithsonian, United States | |
Technical University of Denmark, Denmark | |
NASA Goddard Space Flight Center, United States | |
California Institute of Technology (Caltech), United States | |
University of California, United States | |
Aix-Marseille University, France | |
Pierre and Marie Curie University, France | |
Eotvos Lorand University (ELTE), Hungary | |
Massachusetts Institute of Technology, United States | |
Apache Point Observatory, United States | |
NSF's National Optical Infrared Astronomy Research Laboratory (NOIRLab), United States | |
Southern Connecticut State University, United States | |
Hungarian Astronomical Association, Hungary |
https://research.usq.edu.au/item/yy9vy/hat-p-68b-a-transiting-hot-jupiter-around-a-k5-dwarf-star
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