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Stellar Multiplicity of M Dwarfs with Short-period Giant Planets, and the Characterization of TOI-5628Ab

  • Authors: Tianjun Gan, Alexandrine L'Heureux, Charles Cadieux, Shude Mao, Enric Pallé, Sharon X. Wang, Keivan G. Stassun, Steve B. Howell, Benjamin V. Rackham, Steffani M. Grondin, Khalid Barkaoui, Luc Arnold, Étienne Artigau, Artem Burdanov, Adam J. Burgasser, Douglas A. Caldwell, David R. Ciardi, Karen A. Collins, Neil J. Cook, René Doyon, Georgina Dransfield, Akihiko Fukui, Michaël Gillon, Emmanuel Jehin, Felipe Murgas, Norio Narita, Federico R. Noguer, Howard M. Relles, Avi Shporer, Molly N. Simon, Abderahmane Soubkiou, Christopher A. Theissen, Mathilde Timmermans, Amaury H. M. J. Triaud, Robert T. Zellem, S. Zúñiga-Fernández, Celso P. Machado, Ian R. Mason, Michele T. Mazzucato, Jingyuan Zhao

Tianjun Gan et al 2026 The Astrophysical Journal Letters 1006 .

  • Provider: AAS Journals

Caption: Figure 1.

Top left panel: POSS-II image of TOI-5628A and TOI-5628B obtained in 1990. The red and blue circles are the current positions of the two stars. Bottom left panel: TPF plot of TOI-5628A in Sector 49 with the photometric aperture overlaid as the orange shaded region. TOI-5628A is marked as a white cross. The black arrows represent the proper motions of every star. Right panel: raw (top), detrended (middle), and phase-folded (bottom) TESS light curve. The transits are highlighted with blue ticks. The blue dots are the light curve binned to 10 minutes. The red curve is the best-fit model from the joint analysis.

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