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

We present high-precision measurements for HR 7672AB, composed of a Sun-like (G0V) star and an L dwarf companion. Three nights of precise (70 cm s ^−1 ) radial velocity (RV) asteroseismology with the Keck Planet Finder clearly detect 5 minute oscillations from the primary, HR 7672A, and modeling of...

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Autori principali:	Yaguang Li, Michael C. Liu, Trent J. Dupuy, Daniel Huber, Jingwen Zhang, Daniel Hey, R. R. Costa, Jens Reersted Larsen, J. M. Joel. Ong, Sarbani Basu, Travis S. Metcalfe, Yixiao Zhou, 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
Natura:	Artigo
Lingua:	Inglês
Pubblicazione:	IOP Publishing 2026-01-01
Serie:	The Astrophysical Journal
Soggetti:	Brown dwarfs Asteroseismology Astrometry Stellar evolution High resolution spectroscopy Radial velocity
Accesso online:	https://doi.org/10.3847/1538-4357/ae4bdb
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