Ed Wetherell
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View article: Keck Adaptive Optics Current and Future Roles as an ELT Pathfinder
Keck Adaptive Optics Current and Future Roles as an ELT Pathfinder Open
The segmented nature of the 10-m Keck telescopes combined with facility-class AO systems and science instruments, and a history of science-driven upgrades to these systems, offers a uniquely powerful pathfinder for future AO science facili…
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: 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: High contrast imaging upgrades for the Keck adaptive optics imager
High contrast imaging upgrades for the Keck adaptive optics imager Open
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: Recent Improvements to the Keck II Laser Guide Star Facility
Recent Improvements to the Keck II Laser Guide Star Facility Open
The laser guide star (LGS) adaptive optics (AO) system on the Keck II telescope has been upgraded with a Center Launch Laser System (CLS) and a next generation laser (NGL; i.e. a TOPTICA/MPBC laser) is being implemented. The purpose of the…