HD 28109 hosts a trio of transiting Neptunian planets including a near-resonant pair, confirmed by ASTEP from Antarctica Get access Arrow

• Published in: Monthly Notices of the Royal Astronomical Society
• Main Authors: Dransfield, Georgina, Triaud, Amaury H M J, Guillot, Tristan, Mekarnia, Djamel, Nesvorny, David, Crouzet, Nicolas, Abe, Lyu, Agabi, Karim, Buttu, Marco, Cabrera, Juan, Gandolfi, Davide, Gunther, Maximilian N, Rodler, Florian, Schmider, Francois-Xavier, Stee, Philippe, Suarez, Olga, Collins, Karen A, Dévora-Pajares, Martín, Howell, Steve B, Matthews, Elisabeth C, Standing, Matthew R, Stassun, Keivan G, Stockdale, Chris, Quinn, Samuel N, Ziegler, Carl, Crossfield, Ian J M, Lissauer, Jack J, Mann, Andrew W, Matson, Rachel, Schlieder, Joshua, Zhou, George
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Oxford University Press 2022
• Subjects: planets and satellites: detection; planets and satellites: dynamical evolution and stability; planets and satellites: fundamental parameters; Webb; Antarc*; Antarctica
• Online Access: https://research.usq.edu.au/item/x41wx/hd-28109-hosts-a-trio-of-transiting-neptunian-planets-including-a-near-resonant-pair-confirmed-by-astep-from-antarctica-get-access-arrow; https://research.usq.edu.au/download/748b5783f091a6e56ca2c93a18847a7cc37b549f1608f87a917d57abef04f046/2405471/stac1383.pdf; https://doi.org/10.1093/mnras/stac1383

We report on the discovery and characterization of three planets orbiting the F8 star HD 28109, which sits comfortably in TESS’s continuous viewing zone. The two outer planets have periods of 56.0067 ± 0.0003d and 84.2597-0.0008+0.0010, which implies a period ratio very close to that of the first-or...