학술논문
TOI-4010: A System of Three Large Short-Period Planets With a Massive Long-Period Companion
Document Type
Working Paper
Author
Kunimoto, Michelle; Vanderburg, Andrew; Huang, Chelsea X.; Davis, M. Ryleigh; Affer, Laura; Cameron, Andrew Collier; Charbonneau, David; Cosentino, Rosario; Damasso, Mario; Dumusque, Xavier; Fiorenzano, A. F. Martnez; Ghedina, Adriano; Haywood, R. D.; Lienhard, Florian; López-Morales, Mercedes; Mayor, Michel; Pepe, Francesco; Pinamonti, Matteo; Poretti, Ennio; Maldonado, Jesús; Rice, Ken; Sozzetti, Alessandro; Wilson, Thomas G.; Udry, Stéphane; Baptista, Jay; Barkaoui, Khalid; Becker, Juliette; Benni, Paul; Bieryla, Allyson; Bosch-Cabot, Pau; Ciardi, David R.; Collins, Karen A.; Collins, Kevin I.; Evans, Elise; Dupuy, Trent J.; Goliguzova, Maria V.; Guerra, Pere; Kraus, Adam; Lissauer, Jack J.; Huber, Daniel; Murgas, Felipe; Palle, Enric; Quinn, Samuel N.; Safonov, Boris S.; Schwarz, Richard P.; Shporer, Avi; Stassun, Keivan G.; Jenkins, Jon M.; Latham, David W.; Ricker, George R.; Seager, Sara; Vanderspek, Roland; Winn, Joshua; Essack, Zahra; Lewis, Hannah M.; Rose, Mark E.
Source
AJ, 166, 7 (2023)
Subject
Language
Abstract
We report the confirmation of three exoplanets transiting TOI-4010 (TIC-352682207), a metal-rich K dwarf observed by TESS in Sectors 24, 25, 52, and 58. We confirm these planets with HARPS-N radial velocity observations and measure their masses with 8 - 12% precision. TOI-4010 b is a sub-Neptune ($P = 1.3$ days, $R_{p} = 3.02_{-0.08}^{+0.08}~R_{\oplus}$, $M_{p} = 11.00_{-1.27}^{+1.29}~M_{\oplus}$) in the hot Neptune desert, and is one of the few such planets with known companions. Meanwhile, TOI-4010 c ($P = 5.4$ days, $R_{p} = 5.93_{-0.12}^{+0.11}~R_{\oplus}$, $M_{p} = 20.31_{-2.11}^{+2.13}~M_{\oplus}$) and TOI-4010 d ($P = 14.7$ days, $R_{p} = 6.18_{-0.14}^{+0.15}~R_{\oplus}$, $M_{p} = 38.15_{-3.22}^{+3.27}~M_{\oplus}$) are similarly-sized sub-Saturns on short-period orbits. Radial velocity observations also reveal a super-Jupiter-mass companion called TOI-4010 e in a long-period, eccentric orbit ($P \sim 762$ days and $e \sim 0.26$ based on available observations). TOI-4010 is one of the few systems with multiple short-period sub-Saturns to be discovered so far.
Comment: 26 pages, 16 figures, published in AJ; (v3) added missing citation
Comment: 26 pages, 16 figures, published in AJ; (v3) added missing citation