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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 A2.

Left panel: SpeX SXD spectrum of TOI-5628A (red) and the comparison spectrum of an M3V dwarf, AD Leo (gray), from the IRTF Spectral Library (J. T. Rayner et al. 2009). Strong atomic and molecular features are marked. Right panel: 5σ contrast curves for TOI-5628A from Palomar/PHARO and Gemini-N/‘Alopeke with images shown as inset figures. The comoving WD companion TOI-5628B at about 23″ is outside the FOV of both instruments, and there are no additional close stellar companions within the detection limits.

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