KELT-17b: A Hot-Jupiter Transiting an A-star in a Misaligned Orbit Detected with Doppler Tomography
Article
Article Title | KELT-17b: A Hot-Jupiter Transiting an A-star in a Misaligned Orbit Detected with Doppler Tomography |
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ERA Journal ID | 1048 |
Article Category | Article |
Authors | Zhou, George (Author), Rodriguez, Joseph E. (Author), Collins, Karen A. (Author), Beatty, Thomas (Author), Oberst, Thomas (Author), Heintz, Tyler M. (Author), Stassun, Keivan G. (Author), Latham, David W. (Author), Kuhn, Rudolf B. (Author), Bieryla, Allyson (Author), Lund, Michael B. (Author), Labadie-Bartz, Jonathan (Author), Siverd, Robert J. (Author), Stevens, Daniel J. (Author), Gaudi, B. Scott (Author), Pepper, Joshua (Author), Buchhave, Lars A. (Author), Eastman, Jason (Author), Colon, Knicole (Author), Cargile, Phillip (Author), James, David (Author), Gregorio, Joao (Author), Reed, Phillip A. (Author), Jensen, Eric L. N. (Author), Cohen, David H. (Author), McLeod, Kim K. (Author), Tan, T. G. (Author), Zambelli, Roberto (Author), Bayliss, Daniel (Author), Bento, Joao (Author), Esquerdo, Gilbert A. (Author), Berlind, Perry (Author), Calkins, Michael L. (Author), Blancato, Kirsten (Author), Manner, Mark (Author), Samulski, Camile (Author), Stockdale, Christopher (Author), Nelson, Peter (Author), Stephens, Denise (Author), Curtis, Ivan (Author), Kielkopf, John (Author), Fulton, Benjamin J. (Author), DePoy, D. L. (Author), Marshall, Jennifer L. (Author), Pogge, Richard (Author), Gould, Andy (Author), Trueblood, Mark (Author) and Trueblood, Pat (Author) |
Journal Title | The Astronomical Journal |
Journal Citation | 152 (5), pp. 1-15 |
Article Number | 136 |
Number of Pages | 15 |
Year | 2016 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-6256 |
1538-3881 | |
Digital Object Identifier (DOI) | https://doi.org/10.3847/0004-6256/152/5/136 |
Web Address (URL) | https://iopscience.iop.org/article/10.3847/0004-6256/152/5/136 |
Abstract | We present the discovery of a hot Jupiter transiting the V = 9.23 mag main-sequence A-star KELT-17 (BD+14 1881). KELT-17b is a , hot-Jupiter in a 3.08-day period orbit misaligned at -115.°9 ± 4.°1 to the rotation axis of the star. The planet is confirmed via both the detection of the radial velocity orbit, and the Doppler tomographic detection of the shadow of the planet during two transits. The nature of the spin-orbit misaligned transit geometry allows us to place a constraint on the level of differential rotation in the host star; we find that KELT-17 is consistent with both rigid-body rotation and solar differential rotation rates (at significance). KELT-17 is only the fourth A-star with a confirmed transiting planet, and with a mass of , an effective temperature of 7454 ± 49 K, and a projected rotational velocity of it is among the most massive, hottest, and most rapidly rotating of known planet hosts. |
Keywords | Planets and satellites: individual (KELT-17b); stars: individual (KELT-17, BD+14 1881, TYC 807-903-1); 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 | Center for Astrophysics Harvard and Smithsonian, United States |
Vanderbilt University, United States | |
Pennsylvania State University, United States | |
Westminster College, United States | |
South African Astronomical Observatory, South Africa | |
Lehigh University, United States | |
Las Cumbres Observatory, United States | |
Ohio State University, United States | |
University of Copenhagen, Denmark | |
NASA Ames Research Center, United States | |
Cerro Tololo Inter-American Observatory, Chile | |
Atalaia Group and CROW Observatory, Portugal | |
Kutztown University, United States | |
Swarthmore College, United States | |
Wellesley College, United States | |
Perth Exoplanet Survey Telescope Observatory, Australia | |
Lunae Astronomical Society, Italy | |
University of Geneva, Switzerland | |
Australian National University | |
Hazelwood Observatory, Australia | |
Ellinbank Observatory, Australia | |
Brigham Young University, United States | |
Ivan Curtis Private Observatory, Australia | |
School of Mathematics, Physics and Computing | |
University of Hawaii, United States | |
Texas A&M University, United States | |
Winer Observatory, United States |
https://research.usq.edu.au/item/q6x7y/kelt-17b-a-hot-jupiter-transiting-an-a-star-in-a-misaligned-orbit-detected-with-doppler-tomography
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