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20212024
most citedA Clear View of a Cloudy Brown Dwarf Companion from High-Resolution Spectroscopy

73 citations · 238 across the 13 of their papers we have counts for

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8 papers · 1 filter

astro-ph.EP2024

kappa And b is a fast rotator from KPIC High Resolution Spectroscopy

Evan C. Morris, Jason J. Wang, Chih-Chun Hsu +24

We used the Keck Planet Imager and Characterizer (KPIC) to obtain high-resolution (R35,000) K-band spectra of kappa Andromedae b, a planetary-mass companion orbiting the B9V…

astro-ph.EP2024

Vortex Fiber Nulling for Exoplanet Observations: First Direct Detection of M Dwarf Companions around HIP 21543, HIP 94666, and HIP 50319

Daniel Echeverri, Jerry W. Xuan, John D. Monnier +35

Vortex fiber nulling (VFN) is a technique for detecting and characterizing faint companions at small separations from their host star. A near-infrared (m) VFN demonstrat…

astro-ph.EP2023

A Uniform Analysis of Debris Disks with the Gemini Planet Imager I: An Empirical Search for Perturbations from Planetary Companions in Polarized Light Images

Katie A. Crotts, Brenda C. Matthews, Gaspard Duchêne +37

The Gemini Planet Imager (GPI) has excelled in imaging debris disks in the near-infrared. The GPI Exoplanet Survey (GPIES) imaged twenty-four debris disks in polarized -band lig…

astro-ph.EP2023★ 38 cited

Keck/KPIC Emission Spectroscopy of WASP-33b

Luke Finnerty, Tobias Schofield, Ben Sappey +29

We present Keck/KPIC high-resolution () -band thermal emission spectroscopy of the ultra-hot Jupiter WASP-33b. The use of KPIC's single-mode fibers greatly improves…

astro-ph.EP2022★ 22 cited

Phase II of the Keck Planet Imager and Characterizer: system-level laboratory characterization and preliminary on-sky commissioning

Daniel Echeverri, Nemanja Jovanovic, Jacques-Robert Delorme +35

The Keck Planet Imager and Characterizer (KPIC) is a series of upgrades for the Keck II Adaptive Optics (AO) system and the NIRSPEC spectrograph to enable diffraction-limited, high…

astro-ph.EP2022★ 40 cited

Retrieving C and O Abundance of HR 8799 c by Combining High- and Low-Resolution Data

Ji Wang, Jason J. Wang, Jean-Baptiste Ruffio +29

The formation and evolution pathway for the directly-imaged multi-planetary system HR 8799 remains mysterious. Accurate constraints on the chemical composition of the planetary atm…

astro-ph.EP2022★ 73 cited

A Clear View of a Cloudy Brown Dwarf Companion from High-Resolution Spectroscopy

Jerry W. Xuan, Jason Wang, Jean-Baptiste Ruffio +37

Direct imaging studies have mainly used low-resolution spectroscopy () to study the atmospheres of giant exoplanets and brown dwarf companions, but the presence of clo…

astro-ph.EP2022★ 43 cited

Retrieving the C and O Abundances of HR 7672~AB: a Solar-Type Primary Star with a Benchmark Brown Dwarf

Ji Wang, Jared R. Kolecki, Jean-Baptiste Ruffio +30

A benchmark brown dwarf (BD) is a BD whose properties (e.g., mass and chemical composition) are precisely and independently measured. Benchmark BDs are valuable in testing theoreti…