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A Test of Substellar Evolutionary Models with High-precision Ages from Asteroseismology and Gyrochronology for the Benchmark System HR 7672AB

  • Authors: Yaguang Li, 亚光 李, Michael C. Liu, Trent J. Dupuy, Daniel Huber, Jingwen Zhang, 婧雯 张, Daniel Hey, R. R. Costa, Jens Reersted Larsen, J. M. Joel. Ong, 加冕 王, Sarbani Basu, Travis S. Metcalfe, Yixiao Zhou, 一啸 周, Jennifer van Saders, Timothy R. Bedding, Marc Hon, Hans Kjeldsen, Tiago L. Campante, Mário J. P. F. G. Monteiro, Mia Sloth Lundkvist, Mark Lykke Winther, Ashley Chontos, Nicholas Saunders, Theron W. Carmichael, Antonin Bouchez, Carlos Alvarez, Samuel A. U. Walker, Aldo G. Sepulveda, Howard Isaacson, Andrew W. Howard, Steven R. Gibson, Samuel Halverson, Kodi Rider, Arpita Roy, Ashley D. Baker, Jerry Edelstein, Chris Smith, Benjamin J. Fulton, Josh Walawender

Yaguang Li et al 2026 The Astrophysical Journal 1002 .

  • Provider: AAS Journals

Caption: Figure 10.

Summary of all known substellar companions with dynamical masses, plotting the significance of their measured dynamical masses and host star ages, defined as the ratio between the measured value and its uncertainty (Table 8). HR 7672B’s high precision in both quantities (0.9% in mass and 18% in age) makes it an exceptional benchmark for testing brown dwarf evolutionary models.

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