HATS-43b, HATS-44b, HATS-45b, and HATS-46b: Four Short-period Transiting Giant Planets in the Neptune–Jupiter Mass Range
Article
Article Title | HATS-43b, HATS-44b, HATS-45b, and HATS-46b: Four Short-period Transiting Giant Planets in the Neptune–Jupiter Mass Range |
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ERA Journal ID | 1048 |
Article Category | Article |
Authors | Brahm, R. (Author), Hartman, J. D. (Author), Jordan, A. (Author), Bakos, G. A. (Author), Espinoza, N. (Author), Rabus, M. (Author), Bhatti, W. (Author), Penev, K. (Author), Sarkis, P. (Author), Suc, V. (Author), Csubry, Z. (Author), Bayliss, D. (Author), Bento, J. (Author), Zhou, G. (Author), Mancini, L. (Author), Henning, T. (Author), Ciceri, S. (Author), de Val-Borro, M. (Author), Shectman, S. (Author), Crane, J. D. (Author), Arriagada, P. (Author), Butler, P. (Author), Teske, J. (Author), Thompson, I. (Author), Osip, D. (Author), Diaz, M. (Author), Schmidt, B. (Author), Lazar, J. (Author), Papp, I. (Author) and Sari, P. (Author) |
Journal Title | The Astronomical Journal |
Journal Citation | 155 (3), pp. 1-18 |
Article Number | 112 |
Number of Pages | 18 |
Year | 2018 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-6256 |
1538-3881 | |
Digital Object Identifier (DOI) | https://doi.org/10.3847/1538-3881/aaa898 |
Web Address (URL) | https://iopscience.iop.org/article/10.3847/1538-3881/aaa898 |
Abstract | We report the discovery of four short-period extrasolar planets transiting moderately bright stars from photometric measurements of the HATSouth network coupled to additional spectroscopic and photometric follow-up observations. While the planet masses range from 0.26 to 0.90 MJ, the radii are all approximately a Jupiter radii, resulting in a wide range of bulk densities. The orbital period of the planets ranges from 2.7 days to 4.7 days, with HATS-43b having an orbit that appears to be marginally non-circular (e = 0.173 ± 0.089). HATS-44 is notable for having a high metallicity ([Fe H]= 0.320 ± 0.071). The host stars spectral types range from late F to early K, and all of them are moderately bright (13.3 < V < 14.4), allowing the execution of future detailed follow-up observations. HATS-43b and HATS-46b, with expected transmission signals of 2350 ppm and 1500 ppm, respectively, are particularly well suited targets for atmospheric characterization via transmission spectroscopy. |
Keywords | planetary systems; stars: individual: (HATS-43, HATS-44, HATS-45, HATS-46); Astrophysics - Earth and Planetary Astrophysics; Astrophysics - Solar and Stellar 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 | Millennium Institute of Astrophysics, Chile |
Princeton University, United States | |
Pontifical Catholic University of Chile, Chile | |
Max Planck Society, Germany | |
University of Geneva, Switzerland | |
Australian National University | |
Center for Astrophysics Harvard and Smithsonian, United States | |
Stockholm University, Sweden | |
Carnegie Institution of Washington, United States | |
Carnegie Observatories Pasadena, United States | |
University of Chile, Chile | |
Hungarian Astronomical Association, Hungary |
https://research.usq.edu.au/item/q6x2x/hats-43b-hats-44b-hats-45b-and-hats-46b-four-short-period-transiting-giant-planets-in-the-neptune-jupiter-mass-range
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