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Discovery and Characterization of the TOI-4468 Planetary System: A Transiting Hot Jupiter with a Lone Nearby Outer Companion

  • Authors: Joseph R. Livesey, Benjamin J. Hord, Juliette Becker, Andrew Vanderburg, Joseph E. Rodriguez, Elise Koo, Chelsea X. Huang, Guðmundur Stefánsson, Karen A. Collins, Ivan A. Strakhov, Zijun He, Maxwell A. Kroft, Robert Aloisi, Khalid Barkaoui, Fabian Rodriguez Frustaglia, Alyssa Jankowski, Kinga Kasprzyk, Judith Korth, Coleman Nelson, Hannu Parviainen, Adam Popowicz, Manfred Raetz, Richard P. Schwarz, Eva Stafne, Keivan G. Stassun, Thomas G. Beatty, Paul Foster, Thomas MacLean, Devansh Mathur, Lizhou Sha, Melinda Soares-Furtado

Joseph R. Livesey et al 2026 The Astronomical Journal 172 .

  • Provider: AAS Journals

Caption: Figure 7.

Stability limits for a possible inner companion to TOI-4468 b. The innermost boundary is the Roche limit. The dark green area is the conservatively stable regime (beyond 10RH from planet b). The light green area is the Hill-stable regime (beyond ﹩2\sqrt{3}{R}_{H}﹩ from planet b). The locations of the two confirmed planets in this parameter space are shown for reference.

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