activity
20202026
most citedEvidence for a high mutual inclination between the cold Jupiter and transiting super Earth orbiting Men

82 citations · 781 across the 59 of their papers we have counts for

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6 papers · 1 filter

astro-ph.IM2025★ 9 cited

Technical description and performance of the phase II version of the Keck Planet Imager and Characterizer

Nemanja Jovanovic, Daniel Echeverri, Jacques-Robert Delorme +46

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.IM2024

The high-contrast performance of the Keck Planet Imager and Characterizer

Jason J. Wang, Dimitri Mawet, Jerry W. Xuan +25

The Keck Planet Imager and Characterizer (KPIC), a series of upgrades to the Keck II Adaptive Optics System and Instrument Suite, aims to demonstrate high-resolution spectroscopy o…

astro-ph.IM2024

Keck Primary Mirror Closed-Loop Segment Control using a Vector-Zernike Wavefront Sensor

Maissa Salama, Charlotte Guthery, Vincent Chambouleyron +17

We present the first on-sky segmented primary mirror closed-loop piston control using a Zernike wavefront sensor (ZWFS) installed on the Keck II telescope. Segment co-phasing error…

astro-ph.IM2023

Exploring calibration algorithms to maximize the null depth in KPIC's vortex fiber nulling mode

Sofia Hillman, Daniel Echeverri, Maxwell A. Millar-Blanchaer +3

Vortex fiber nulling (VFN) is a new interferometric technique with the potential to unlock the ability to detect and spectroscopically characterize exoplanets at angular separation…

astro-ph.IM2023★ 12 cited

Vortex Fiber Nulling for Exoplanet Observations: Implementation and First Light

Daniel Echeverri, Jerry Xuan, Nemanja Jovanovic +31

Vortex fiber nulling (VFN) is a single-aperture interferometric technique for detecting and characterizing exoplanets separated from their host star by less than a diffracted beam…

astro-ph.IM2023★ 7 cited

On-sky speckle nulling through a single-mode fiber with the Keck Planet Imager and Characterizer

Yinzi Xin, Jerry W. Xuan, Dimitri Mawet +14

The Keck Planet Imager and Characterizer (KPIC) is an instrument at the Keck II telescope that enables high-resolution spectroscopy of directly imaged exoplanets and substellar com…