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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 1.

RV observations of HR 7672A over 3 consecutive nights using the KPF. (a) RV time series after filtering out signals with periods longer than 1.2 hr. (b) Power spectrum of the RV time series, weighted by the reported RV uncertainties, displaying a clear power excess around 3000 μHz. The inset shows the spectral window. (c) Power spectrum after deconvolution against the spectral window, followed by reconvolution with a Gaussian filter of width 1/T_obs for clarity.

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