Scott Lilley
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View article: Enabling high resolution visible AO at the W.M. Keck Observatory
Enabling high resolution visible AO at the W.M. Keck Observatory Open
The W. M. Keck Observatory has generated an observatory wide strategic plan for 2035. This plan has identified visible Adaptive Optics (AO) as an attractive science path for the observatory. Given the 10-meter aperture of the Keck telescop…
View article: Daytime calibration and testing of the Keck All sky Precision Adaptive Optics Tomography System
Daytime calibration and testing of the Keck All sky Precision Adaptive Optics Tomography System Open
The development of the Keck All sky Precision Adaptive optics (KAPA) project was initiated in September 2018 to upgrade the Keck I adaptive optics (AO) system to enable laser tomography adaptive optics (LTAO) with a four laser guide star (…
View article: Keck Planet Imager and Characterizer: a dedicated single-mode fiber injection unit for high-resolution exoplanet spectroscopy
Keck Planet Imager and Characterizer: a dedicated single-mode fiber injection unit for high-resolution exoplanet spectroscopy Open
The Keck Planet Imager and Characterizer (KPIC) is a purpose-built instrument to demonstrate new technological and instrumental concepts initially developed for the exoplanet direct imaging field. Located downstream of the current Keck II …
View article: Keck all sky precision adaptive optics: project overview
Keck all sky precision adaptive optics: project overview Open
We present the status and plans for the Keck All sky Precision Adaptive optics (KAPA) program. KAPA includes four key science programs, an upgrade to the Keck I laser guide star (LGS) adaptive optics (AO) facility to improve image quality …
View article: Enhanced high-dispersion coronagraphy with KPIC phase II: design, assembly and status of sub-modules
Enhanced high-dispersion coronagraphy with KPIC phase II: design, assembly and status of sub-modules Open
The Keck Planet Imager and Characterizer (KPIC) is a purpose-built instrument for high-dispersion coronagraphy in the K and L bands on Keck. This instrument will provide the first high resolution (R>30,000) spectra of known directly imaged…
View article: The Keck Planet Imager and Characterizer: A dedicated single-mode fiber injection unit for high resolution exoplanet spectroscopy
The Keck Planet Imager and Characterizer: A dedicated single-mode fiber injection unit for high resolution exoplanet spectroscopy Open
The Keck Planet Imager and Characterizer (KPIC) is a purpose-built instrument to demonstrate new tech- nological and instrumental concepts initially developed for the exoplanet direct imaging field. Located downstream of the current Keck I…
View article: Enhanced high-dispersion coronagraphy with KPIC phase II: design, assembly and status of sub-modules
Enhanced high-dispersion coronagraphy with KPIC phase II: design, assembly and status of sub-modules Open
The Keck Planet Imager and Characterizer (KPIC) is a purpose-built instrument for high-dispersion coronagraphy in the K and L bands on Keck. This instrument will provide the first high resolution (R$>$30,000) spectra of known directly imag…
View article: Adaptive optics with an infrared pyramid wavefront sensor at Keck
Adaptive optics with an infrared pyramid wavefront sensor at Keck Open
The study of cold or obscured, red astrophysical sources can significantly benefit from adaptive optics (AO) systems employing infrared (IR) wavefront sensors. One particular area is the study of exoplanets around M-dwarf stars and planet …
View article: WISE J072003.20-084651.2B is a Massive T Dwarf<sup>∗</sup> <sup>†</sup>
WISE J072003.20-084651.2B is a Massive T Dwarf<sup>∗</sup> <sup>†</sup> Open
We present individual dynamical masses for the nearby M9.5+T5.5 binary WISE J072003.20−084651.2AB, a.k.a. Scholz’s star. Combining high-precision Canada–France–Hawaii Telescope/WIRCam photocenter astrometry and Keck adaptive optics resolve…
View article: Status of the Keck Planet Imager and Characterizer Phase II Development
Status of the Keck Planet Imager and Characterizer Phase II Development Open
The Keck Planet Imager and Characterizer comprises of a series of upgrades to the Keck II adaptive optics system and instrument suite to improve the direct imaging and high resolution spectroscopy capabilities of the facility instruments N…
View article: The Keck Planet Imager and Characterizer: Demonstrating advanced exoplanet characterization techniques for future extremely large telescopes
The Keck Planet Imager and Characterizer: Demonstrating advanced exoplanet characterization techniques for future extremely large telescopes Open
The Keck Planet Imager and Characterizer (KPIC) is an upgrade to the Keck II adaptive optics system enabling high contrast imaging and high-resolution spectroscopic characterization of giant exoplanets in the mid-infrared (2-5 microns). Th…
View article: Status of the Keck Planet Imager and Characterizer phase II development
Status of the Keck Planet Imager and Characterizer phase II development Open
The Keck Planet Imager and Characterizer comprises of a series of upgrades to the Keck II adaptive optics system and instrument suite to improve the direct imaging and high resolution spectroscopy capabilities of the facility instruments N…
View article: First version of the fiber injection unit for the Keck Planet Imager and Characterizer
First version of the fiber injection unit for the Keck Planet Imager and Characterizer Open
Coupling a high-contrast imaging instrument to a high-resolution spectrograph has the potential to enable the most detailed characterization of exoplanet atmospheres, including spin measurements and Doppler mapping. The high-contrast imagi…
View article: Innovations and advances in instrumentation at the W. M. Keck Observatory
Innovations and advances in instrumentation at the W. M. Keck Observatory Open
Since the start of operations in 1993, the twin 10 meter W. M. Keck Observatory telescopes have continued to maximize their scientific impact and to produce transformative discoveries that keep the observing community on the frontiers of a…
View article: First version of the fiber injection unit for the Keck Planet Imager and Characterizer
First version of the fiber injection unit for the Keck Planet Imager and Characterizer Open
Coupling a high-contrast imaging instrument to a high-resolution spectrograph has the potential to enable the most detailed characterization of exoplanet atmospheres, including spin measurements and Doppler mapping. The high-contrast imagi…
View article: A fiber injection unit for the Keck Planet Imager and Characterizer (KPIC)
A fiber injection unit for the Keck Planet Imager and Characterizer (KPIC) Open
Coupling a high-contrast imaging instrument to a high-resolution spectrograph has the potential to enable the most detailed characterization of exoplanet atmospheres, including spin measurements and Doppler mapping. The high-contrast imagi…
View article: THE W. M. KECK OBSERVATORY INFRARED VORTEX CORONAGRAPH AND A FIRST IMAGE OF HIP 79124 B
THE W. M. KECK OBSERVATORY INFRARED VORTEX CORONAGRAPH AND A FIRST IMAGE OF HIP 79124 B Open
An optical vortex coronagraph has been implemented within the NIRC2 camera on the Keck II telescope and used to carry out on-sky tests and observations. The development of this new L ′-band observational mode is described, and an initial d…
View article: The AIROPA software package: milestones for testing general relativity in the strong gravity regime with AO
The AIROPA software package: milestones for testing general relativity in the strong gravity regime with AO Open
General relativity can be tested in the strong gravity regime by monitoring stars orbiting the supermassive black hole at the Galactic Center with adaptive optics. However, the limiting source of uncertainty is the spatial PSF variability …
View article: Keck II laser guide star AO system and performance with the TOPTICA/MPBC laser
Keck II laser guide star AO system and performance with the TOPTICA/MPBC laser Open
The Keck II Laser Guide Star (LGS) Adaptive Optics (AO) System was upgraded from a dye laser to a TOPTICA/MPBC Raman-Fibre Amplification (RFA) laser in December 2015. The W. M. Keck Observatory (WMKO) has been operating its AO system with …
View article: Commissioning and first light results of an L'-band vortex coronagraph with the Keck II adaptive optics NIRC2 science instrument
Commissioning and first light results of an L'-band vortex coronagraph with the Keck II adaptive optics NIRC2 science instrument Open
On March 2015 an L'-band vortex coronagraph based on an Annular Groove Phase Mask made up of a diamond sub-wavelength grating was installed on NIRC2 as a demonstration project. This vortex coronagraph operates in the L' band not only in or…