Distinct Rotational Evolution of Giant Planets and Brown Dwarf Companions

We present a rotational velocity ( $v\sin i$ ) survey of 32 stellar/substellar objects and giant planets using Keck/KPIC high-resolution spectroscopy, including 6 giant planets (2–7 M _Jup ) and 25 substellar/stellar companions (12–88 M _Jup ). Adding companions with spin measurements from the liter...

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Auteurs principaux:	Chih-Chun Hsu, Jason J. Wang, Jerry W. Xuan, Yapeng Zhang, Jean-Baptiste Ruffio, Dimitri Mawet, Luke Finnerty, Katelyn Horstman, Julianne Cronin, Yinzi Xin, Ben Sappey, Daniel Echeverri, Nemanja Jovanovic, Ashley Baker, Randall Bartos, Geoffrey A. Blake, Benjamin Calvin, Sylvain Cetre, Jacques-Robert Delorme, Gregory W. Doppmann, Michael P. Fitzgerald, Quinn M. Konopacky, Joshua Liberman, Ronald A. López, Evan Morris, Jacklyn Pezzato, Tobias Schofield, Andrew Skemer, J. Kent Wallace, Ji Wang
Format:	Artigo
Langue:	Inglês
Publié:	IOP Publishing 2026-01-01
Collection:	The Astronomical Journal
Sujets:	Exoplanet atmospheres Brown dwarfs L dwarfs Stellar rotation High resolution spectroscopy High angular resolution
Accès en ligne:	https://doi.org/10.3847/1538-3881/ae434b
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