Separated Twins or Just Siblings? A Multiplanet System around an M Dwarf Including a Cool Sub-Neptune

Separated Twins or Just Siblings? A Multiplanet System around an M Dwarf Including a Cool Sub-Neptune

We report the discovery of two TESS sub-Neptunes orbiting the early M dwarf TOI-904 (TIC 261257684). Both exoplanets, TOI-904 b and c, were initially observed in TESS Sector 12 with twin sizes of ${2.426}_{-0.157}^{+0.163}$ and ${2.167}_{-0.118}^{+0.130}$ R _⊕ , respectively. Through observations in...

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Bibliographic Details
Main Authors: Mallory Harris, Diana Dragomir, Ismael Mireles, Karen A. Collins, Solène Ulmer-Moll, Steve B. Howell, Keivan G. Stassun, George Zhou, Carl Ziegler, François Bouchy, César Briceño, David Charbonneau, Kevin I. Collins, Gábor Fűűrész, Natalia M. Guerrero, Jon M. Jenkins, Eric L. N. Jensen, Martti H. K. Kristiansen, Nicholas Law, Monika Lendl, Andrew W. Mann, Hugh P. Osborn, Samuel N. Quinn, George R. Ricker, Richard P. Schwarz, Sara Seager, Eric B. Ting, Roland Vanderspek, David Watanabe, Joshua N. Winn
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Series:The Astrophysical Journal Letters
Subjects:
Exoplanet systems
Exoplanet detection methods
Exoplanet astronomy
M dwarf stars
Cold Neptunes
Mini Neptunes
Online Access:https://doi.org/10.3847/2041-8213/ad037d

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