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…
Evidence of Radius Inflation Based on 50 Transiting Brown Dwarfs and Low-mass Stellar Companions
Aarushi Mehrotra, Chih-Chun Hsu, Jason J. Wang +2
Statistical assessment of stellar parameters enables validation and improvements in theoretical models. We compiled a sample of 85 transiting stellar and substellar companions, wit…
Possible stratospheric emission in the warm Neptune GJ 436 b from high-resolution spectroscopy
Luke Finnerty, Michael P Fitzgerald, Jerry W Xuan +26
We present high spectral resolution band (2.91--3.85 m) observations of the warm Neptune GJ 436 b from Keck II/KPIC. KPIC's single-mode fiber feed reduces the band sky…
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…
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…