9 papers
Atmospheric characterization of six ultra-hot Jupiters from -band high-resolution spectroscopy
Luke Finnerty, Michael P. Fitzgerald, Yinzi Xin +27
We present new Keck/KPIC high-resolution spectroscopic detections of three ultra-hot Jupiters (UHJs) in the band: WASP-189b (), MASCARA-1b (), and…
Distinct Rotational Evolution of Giant Planets and Brown Dwarf Companions
Chih-Chun Hsu, Jason J. Wang, Jerry W. Xuan +27
We present a rotational velocity (vsini) survey of 32 stellar/substellar objects and giant planets using Keck/KPIC high-resolution spectroscopy, including 6 giant planets (2-7 M$_\…
Dynamical Architectures of S-type Transiting Planets in Binaries II: A Dichotomy in Orbital Alignment of Small Planets in Close Binary Systems
Jingwen Zhang, Daniel Huber, Michael Bottom +35
Stellar multiplicity plays a crucial role in shaping planet formation and dynamical evolution. We present a survey of 54 TESS Objects of Interest (TOIs) within 300 pc that exhibit…
Chemical and Isotopic Homogeneity Between the L Dwarf CD-35 2722 B and its Early M Host Star
Gavin Wang, Jerry Xuan, DarÃo Picos +29
CD-35 2722 B is an L dwarf companion to the nearby, Myr old M1 dwarf CD-35 2722 A. We present a detailed analysis of both objects using high-resolution ($R \sim 35,00…
The watery atmosphere of HD~209458~b revealed by joint - and -band high-resolution spectroscopy
Luke Finnerty, Julie Inglis, Michael P. Fitzgerald +26
We present a joint analysis of high-resolution - and -band observations of the benchmark hot Jupiter \hdb\ from the Keck Planet Imager and Characterizer (KPIC). One half nigh…
Water dissociation and rotational broadening in the atmosphere of KELT-20 b from high-resolution spectroscopy
Luke Finnerty, Yinzi Xin, Jerry W. Xuan +29
We present atmospheric retrievals from Keck/KPIC phase II observations of the ultra-hot Jupiter KELT-20/MASCARA-2~b. Previous free retrievals of molecular abundances for ultra-hot…