TOI-4010: A System of Three Large Short-period Planets with a Massive Long-period Companion

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.
Bibliographical reference

The Astronomical Journal

Advertised on:
7
2023
Number of authors
56
IAC number of authors
3
Citations
4
Refereed citations
4
Description
We report the confirmation of three exoplanets transiting TOI-4010 (TIC-352682207), a metal-rich K dwarf observed by the Transiting Exoplanet Survey Satellite in Sectors 24, 25, 52, and 58. We confirm these planets with the High Accuracy Radial velocity Planet Searcher for the Northern Hemisphere 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 ~ 762 days and e ~ 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.
Related projects
Projects' name image
Exoplanets and Astrobiology
The search for life in the universe has been driven by recent discoveries of planets around other stars (known as exoplanets), becoming one of the most active fields in modern astrophysics. The growing number of new exoplanets discovered in recent years and the recent advance on the study of their atmospheres are not only providing new valuable
Enric
Pallé Bago