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Detailed Architecture of the L 98-59 System and Confirmation of a Fifth Planet in the Habitable Zone

  • Authors: Charles Cadieux, Alexandrine L'Heureux, Caroline Piaulet-Ghorayeb, René Doyon, Étienne Artigau, Neil J. Cook, Louis-Philippe Coulombe, Pierre-Alexis Roy, David Lafrenière, Pierrot Lamontagne, Michael Radica, Björn Benneke, Eva-Maria Ahrer, Drew Weisserman, Ryan Cloutier

Charles Cadieux et al 2025 The Astronomical Journal 170 .

  • Provider: AAS Journals

Caption: Figure C2.

Posterior distributions of Kk (left), ek (center), and ωk (right) for the L 98-59 planets from an RV-only fit and the joint RV–TTV fit (fixed-inclination model). The eccentricity distributions are normalized so that their heights are equal to improve visibility. The small TTVs detected on L 98-59 c and d provide significant constraints on the orbital architecture of the system.

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