activity
20052026
most citedGemini multi-conjugate adaptive optics system review II: Commissioning, operation and overall performance

125 citations · 485 across the 12 of their papers we have counts for

collaborators

15 papers

astro-ph.IM2026

On-sky capabilities and performance of the Keck All Sky Precision Adaptive Optics system

Avinash Surendran, Maxwell Service, Jacques R. Delorme +21

The Keck All Sky Precision Adaptive optics (KAPA) project upgrades the Keck I adaptive optics system to enable laser tomography using a four laser guide star (LGS) asterism. KAPA i…

astro-ph.IM2026

Robo-AO-2: entering the era of automated science operations, hybrid wavefront sensing, and adaptive secondary integration

Christoph Baranec, Reed Riddle, James Ou +10

We present the first science results and new technical milestones from the Robo-AO-2 facility at the University of Hawaii 2.2-m telescope. Following successful commissioning, the s…

astro-ph.IM2024

Simulation results for Robo-AO-2 using HAPA: a wavefront sensing technique for improving the adaptive optics correction of fainter stars

Ruihan Zhang, Christoph Baranec, Marcos A. van Dam +3

Direct imaging of exoplanets allows us to measure positions and chemical signatures of exoplanets. Given the limited resources for space observations where the atmosphere is absent…

astro-ph.IM2024

Commissioning results from the Robo-AO-2 facility for rapid visible and near-infrared AO imaging

Christoph Baranec, James Ou, Reed Riddle +16

We installed the next-generation automated laser adaptive optics system, Robo-AO-2, on the University of Hawaii 2.2-m telescope on Maunakea in 2023. We engineered Robo-AO-2 to deli…

astro-ph.IM2022

Gemini North Adaptive Optics (GNAO) facility overview and status updates

Gaetano Sivo, Julia Scharwächter, Manuel Lazo +54

The Gemini North Adaptive Optics (GNAO) facility is the upcoming AO facility for Gemini North providing a state-of-the-art AO system for surveys and time domain science in the era…

astro-ph.IM2018

The Robo-AO-2 facility for rapid visible/near-infrared AO imaging and the demonstration of hybrid techniques

Christoph Baranec, Mark Chun, Donald Hall +23

We are building a next-generation laser adaptive optics system, Robo-AO-2, for the UH 2.2-m telescope that will deliver robotic, diffraction-limited observations at visible and nea…

astro-ph.IM2014★ 5 cited

PULSE: The Palomar Ultraviolet Laser for the Study of Exoplanets

Christoph Baranec, Richard G. Dekany, Rick S. Burruss +8

The Palomar Ultraviolet Laser for the Study of Exoplanets (PULSE) will dramatically expand the science reach of PALM-3000, the facility high-contrast extreme adaptive optics system…

astro-ph.EP2014★ 62 cited

The Puzzling Mutual Orbit of the Binary Trojan Asteroid (624) Hektor

F. Marchis, J. Durech, J. Castillo-Rogez +9

Asteroids with satellites are natural laboratories to constrain the formation and evolution of our solar system. The binary Trojan asteroid (624) Hektor is the only known Trojan as…

astro-ph.IM2014★ 125 cited

Gemini multi-conjugate adaptive optics system review II: Commissioning, operation and overall performance

Benoit Neichel, François Rigaut, Fabrice Vidal +30

The Gemini Multi-conjugate Adaptive Optics System - GeMS, a facility instrument mounted on the Gemini South telescope, delivers a uniform, near diffraction limited images at near i…

astro-ph.IM2014

Gems first science results

Benoit Neichel, Fabrice Vidal, Francois Rigaut +19

After 101 nights of commissioning, the Gemini MCAO system (GeMS) started science operations in December 2012. After a brief reminder on GeMS specificities, we describe the overall…

astro-ph.IM2013

PULSE: Palomar Ultraviolet Laser for the Study of Exoplanets

Christoph Baranec, Richard Dekany, Marcos van Dam +1

PULSE is a new concept to augment the currently operating 5.1-m Hale PALM-3000 exoplanet adaptive optics system with an ultraviolet Rayleigh laser and associated wavefront sensor.…

astro-ph2008★ 21 cited

An Upper Mass Limit on a Red Supergiant Progenitor for the Type II-Plateau Supernova SN 2006my

Douglas C. Leonard, Avishay Gal-Yam, Derek B. Fox +5

We analyze two pre-supernova (SN) and three post-SN high-resolution images of the site of the Type II-Plateau supernova SN 2006my in an effort to either detect the progenitor star…

astro-ph2006★ 119 cited

A low density of 0.8 g/cc for the Trojan binary asteroid 617 Patroclus

Franck Marchis, Daniel Hestroffer, Pascal Descamps +15

The Trojan population consists of two swarms of asteroids following the same orbit as Jupiter and located at the L4 and L5 Lagrange points of the Jupiter-Sun system (leading and fo…

astro-ph2005★ 118 cited

Satellites of the largest Kuiper belt objects

M. E. Brown, M. A. van Dam, A. H. Bouchez +12

We have searched the four brightest objects in the Kuiper belt for the presence of satellites using the newly commissioned Keck Observatory Laser Guide Star Adaptive Optics system.…

astro-ph2005★ 35 cited

Merging Galaxies in Goods-s: First Extragalactic Results from Keck Laser Adaptive Optics

J. Melbourne, S. A. Wright, M. Barczys +15

The Center for Adaptive Optics Treasury Survey (CATS) aims to combine deep HST images in the optical with deep Keck adaptive optics (AO) data in the near-infrared (NIR) to study di…