Laird Close

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Laird specializes in novel astronomical observations utilizing new adaptive optics instrumentation. He is utilizing adaptive optics (which removes the blurring effects of the Earth's atmosphere) to study at very high resolution: low-mass stars, brown dwarfs, and extrasolar planets. As well he is interested in massive old AGB stars, young stars in the process of forming, & solar system objects like Titan and binary asteroids. He has been involved in the development of several adaptive optics systems and special high-contrast high resolution infrared cameras. He is the head scientist (PI) of the Magellan Adaptive Secondary AO system in Chile. He is the lead Optical and Mechanical scientist for the extreme AO system MagAO-X (used at the 6.5m Magellan Telescope) and GMagAO-X instrument (designed for the future 25m Giant Magellan Telescope). He is the PI of the MaxProtoPlanetS survey for the direct detection of the youngest exoplanets with adaptive optics at H-alpha. This a key MagAO-X survey. He has been the chair of the Adaptive Optics SPIE conference in 2018 and co-Chair in 2014 and 2016. These are the largest AO conferences in the world. A rare binary asteroid (a double minor planet #25015) is named "(25015) Lairdclose" after him.

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Courses

LU
Life in the Universe

IOA
Introduction to Observational Astronomy

Grants

Alien Earths: Which Nearby Planetary Systems Are Likely to Host Habitable Planets and Life?
Co-Investigator (COI)
2021
$2.8M
Active
MagAO-X Phase II: The Pursuit of Proxima b
Co-Investigator (COI)
2021
$1.5M
Active
A High-Contrast Survey of Young Stars for Accreting Protoplanets with the MagAO-X Extreme AO System: Defining the JWST Protoplanet Follow-up Sample.
Principal Investigator (PI)
2021
$298.4K
Active
High Contrast Adaptive Optics Testbed Development
Principal Investigator (PI)
2020
$933.0K
Active
OP: MRI: Development of a Visible Wavelength Extreme Adaptive Optics Coronagraphic Imager for the 6.5 meter Magellan Telescope
Co-Investigator (COI)
2016
$2.4M
Active
Discovery of Accreting Planets with the MagAO SDI+ High Contrast Imager on the 6.5m Magellan Telescope: Defining the JWST Protoplanet Sample
Principal Investigator (PI)
2018
$247.5K
The First Census of Accreting Proto-Planets Inside the Gaps of Transitional Dusk Disks
Principal Investigator (PI)
2016
$293.6K
Determining the Optical-to-Mid-Infrared SEDs and Empirical Bolometric Luminosities of Uoung Jovian Exoplanets Via Direct Imaging with Magellan Adaptive Optics.
Co-Investigator (COI)
2016
$246.7K
Earths in Other Solar Systems: Toward Forming and Discovering Planets with Biocritical Ingredients
Co-Investigator (COI)
2015
$5.7M

MagAO-2K: The 2 kHz Extreme-AO Upgrade of the Magellan AO System and H2RG Upgrade of the Clio IR Camera
Co-Investigator (COI)
2015
$633.1K

Technologies / Patents

News

NSF Grant Accelerates Development for One of World's Most Powerful Telescopes; Test Bed Being Built at UArizona
2020
Chunks of Glass, Made Into a Mirror, Will Probe Stars
2017
Mirror Lab Renamed in Honor of Richard F. Caris
2015
Science Lecture Series to Explore Life in the Universe
2015
Researchers Capture First Photo of Planet in the Making
2015
A Small Step Toward Discovering Habitable Earths
2014
UA Astronomers Take Sharpest Photos Ever of the Night Sky
2013
UA Astronomers Discover Planet That Shouldn't Be There
2013
Searching for Planets in Clouds of Dust
2012
Lifting Space Exploration to New Heights
2011
Brown Dwarf Found Orbiting a Young Sun-Like Star
2010
UA Optics Research Attempting to Improve Discovery of Planets
2008
Benchmark Survey Shows that Giant Outer Extrasolar Planets Are Rare
2007
Very Cool Brown Dwarf Discovered Near the Sun
2006
Jamieson Telescope Will Light Infrared Universe for Amateur Astronomers
2005
USS Arizona Bell Rings to Honor Outstanding Achievement
2005
Astronomers' First Direct Evidence: Young Low-Mass Objects Twice as Heavy as Predicted
2005
Novel Camera Set to Produce the First Direct Images of Extrasolar Planets
2004
Astronomers Get Ultrasharp Images With Large Telescope in Arizona
2003
Astronomers Image Closest Brown Dwarf Companion To a Star
2002

Astronomers Image Double Asteroid and a New Asteroid Moon
2000

Publications (435)

Recent

The Giant Accreting Protoplanet Survey (GAPlanetS)—Results from a 6 yr Campaign to Image Accreting Protoplanets
2023
The Giant Accreting Protoplanet Survey (GAPlanetS): Optimization Techniques for Robust Detections of Protoplanets
2023
Improved Companion Mass Limits for Sirius A with Thermal Infrared Coronagraphy Using a Vector-apodizing Phase Plate and Time-domain Starlight-subtraction Techniques
2023
ALMA Discovery of a Disk around the Planetary-mass Companion SR 12 c
2022
HST/WFC3 Hα Direct-imaging Detection of a Pointlike Source in the Disk Cavity of AB Aur
2022
Improved Orbital Constraints and Hα Photometric Monitoring of the Directly Imaged Protoplanet Analog HD 142527 B
2022
Companion mass limits for 17 binary systems obtained with binary differential imaging and MagAO/Clio
2022
Vector-apodizing phase plate coronagraph: design, current performance, and future development [Invited]
2021
OGLE-2007-BLG-224L: A Direct Test of Terrestrial Parallax
2021
MagAO Observations of the Binary Microlens OGLE-2014-BLG-1050 Prefer the Higher-mass Solution
2021
Hubble Space Telescope UV and H\ensuremath{\alpha} Measurements of the Accretion Excess Emission from the Young Giant Planet PDS 70 b
2021
Data-driven subspace predictive control: lab demonstration and future outlook
2021
Data-driven subspace predictive control of adaptive optics for high-contrast imaging
2021
Characterizing deformable mirrors for the MagAO-X instrument
2021
Hubble Space Telescope UV and Hα Measurements of the Accretion Excess Emission from the Young Giant Planet PDS 70 b
2021
The Giant Accreting Protoplanet Survey (GAPlanetS) \textemdash Final Results and Next Steps
2021
High-contrast observations of brown dwarf companion HR 2562 B with the vector Apodizing Phase Plate coronagraph
2021
VizieR Online Data Catalog: Predicted planetary yields of gap transitional disks (Close, 2020)
2021
Characterizing microlensing planetary system OGLE-2014-BLG-0676Lb with adaptive optics imaging
2021
Imaging low-mass planets within the habitable zones of nearby stars with ground-based mid-infrared imaging
2021
Drums in the Deep: constraining the orbit and photometric variability of the chasm-carving M-dwarf HD 142527B
2021
Prediction of the planet yield of the MaxProtoPlanetS high-contrast survey for H-alpha protoplanets with MagAO-X based on first light contrasts
2020
VizieR Online Data Catalog: LC of microlensing event OGLE-2012-BLG-0838 (Poleski+, 2020)
2020
SHARK-NIR, toward the installation at the Large Binocular Telescope
2020
MagAO-X first light
2020
Multi-core fibre-fed integral-field unit (MCIFU): overview and first-light
2020
NaCo — The Story of a Lifetime
2020
The Separation and H\ensuremath{\alpha} Contrasts of Massive Accreting Planets in the Gaps of Transitional Disks: Predicted H\ensuremath{\alpha} Protoplanet Yields for Adaptive Optics Surveys
2020
NaCo \textemdash The Story of a Lifetime
2020
Concept for the GMT High-Contrast Exoplanet Instrument GMagAO-X and the GMT High-Contrast Phasing Testbed with MagAO-X
2020
The Separation and H-alpha Contrasts of Massive Accreting Planets in the Gaps of Transitional Disks: Predicted H-alpha Protoplanet Yields for Adaptive Optics Surveys
2020
A Wide-orbit Exoplanet OGLE-2012-BLG-0838Lb
2020
The Giant Magellan Telescope high contrast phasing testbed
2020
Directly Imaging Rocky Planets from the Ground
2019
Dynamical Processes in the Planet-Forming Environment
2019
VizieR Online Data Catalog: The LEECH exoplanet imaging survey (Stone+, 2018)
2019
The Need for Laboratory Measurements and Ab Initio Studies to Aid Understanding of Exoplanetary Atmospheres
2019
Astro2020 Science White Paper: Dynamical Processes in the Planet-Forming Environment
2019
Spatial linear dark field control and holographic modal wavefront sensing with a vAPP coronagraph on MagAO-X
2019
Detecting Earth-like Biosignatures on Rocky Exoplanets around Nearby Stars with Ground-based Extremely Large Telescopes
2019
Realizing the Promise of High-Contrast Imaging: More Than 100 Gas-Giant Planets with Masses, Orbits, and Spectra Enabled by Gaia+WFIRST Astrometry
2019
The Demographics and Atmospheres of Giant Planets with the ELTs
2019
A Technology Validation Program for near-IR Habitable Exoplanet Imaging with GMT and TMT
2019
New Spatially Resolved Imaging of the SR 21 Transition Disk and Constraints on the Small-grain Disk Geometry
2019
A Wide Orbit Exoplanet OGLE-2012-BLG-0838Lb
2019
New Spatially Resolved Observations of the SR 21 Transition Disk
2019
Protoplanetary Disk Science Enabled by Extremely Large Telescopes
2019
Imaging Giant Protoplanets with the ELTs
2019
Concept for the GMT High-Contrast Exoplanet Instrument GMagAO-X and the High-Contrast Phasing Testbed with MagAO-X
2019
A Planet is Born: Investigating the Accretion Process of PDS70b with WFC3/UVIS Direct Imaging Observations
2019
Training the Next Generation of OIR Instrumentalists
2019
GMagAO-X: extreme adaptive optics & coronagraphy for GMT at first light
2019
New Frontiers for Terrestrial-sized to Neptune-sized Exoplanets In the Era of Extremely Large Telescopes
2019
Planetary Habitability Informed by Planet Formation and Exoplanet Demographics
2019
The LEECH Exoplanet Imaging Survey: Limits on Planet Occurrence Rates under Conservative Assumptions
2018
A locking clamp that enables high thermal and vibrational stability for kinematic optical mounts
2018
VizieR Online Data Catalog: The multiplicity of M dwarfs in young moving groups (Shan+, 2017)
2018
Magellan Adaptive Optics Imaging of PDS 70: Measuring the Mass Accretion Rate of a Young Giant Planet within a Gapped Disk
2018
Status of MagAO and review of astronomical science with visible light adaptive optics
2018
Optical field/pupil rotator with a novel compact K-mirror for MagAO-X
2018
Adaptive Optics Systems VI
2018
SHARK-NIR: the coronagraphic camera for LBT in the AIV phase at INAF-Padova
2018
Modeling coronagraphic extreme wavefront control systems for high contrast imaging in ground and space telescope missions
2018
Focal plane wavefront sensing and control strategies for high-contrast imaging on the MagAO-X instrument
2018
Design of the MagAO-X Pyramid Wavefront Sensor
2018
Direct Imaging in Reflected Light: Characterization of Older, Temperate Exoplanets With 30-m Telescopes
2018
Surveying the Epsilon Eridani system Using MagAO
2018
The MagAO Giant Accreting Protoplanet Survey (GAPlanetS): Recent Results
2018
Preliminary on-sky results of the next generation GMT phasing sensor prototype
2018
The Orbit of the Companion to HD 100453A: Binary-driven Spiral Arms in a Protoplanetary Disk
2018
The hunt for Sirius Ab: comparison of algorithmic sky and PSF estimation performance in deep coronagraphic thermal-IR high contrast imaging
2018
The Intricate Structure of HH 508, the Brightest Microjet in the Orion Nebula
2018
Optical and mechanical design of the extreme AO coronagraphic instrument MagAO-X
2018
SHARK-NIR, the coronagraphic camera for LBT, moving toward construction
2018
MagAO-X: project status and first laboratory results
2018
Complex Spiral Structure in the HD 100546 Transitional Disk as Revealed by GPI and MagAO
2017
An ALMA and MagAO Study of the Substellar Companion GQ Lup B*
2017
Pyramid Wavefront Sensing for Extreme Adaptive Optics
2017
An Optical/Near-infrared Investigation of HD 100546 b with the Gemini Planet Imager and MagAO
2017
An Explanation of the Very Low Radio Flux of Young Planet-mass Companions
2017
The Multiplicity of M Dwarfs in Young Moving Groups
2017
Resolving the H\ensuremathα-emitting Region in the Wind of \ensuremathη Carinae
2017
Resolving the H$\alpha$-emitting Region in the Wind of $\eta$ Carinae
2017
The TWA 3 Young Triple System: Orbits, Disks, Evolution
2017
On-sky Performance Analysis of the Vector Apodizing Phase Plate Coronagraph on MagAO/Clio2
2017
Radar observations and shape model of asteroid 16 Psyche
2017
The LEECH Exoplanet Imaging Survey: Characterization of the Coldest Directly Imaged Exoplanet, GJ 504 b, and Evidence for Superstellar Metallicity
2016
Vibrations in MagAO: frequency-based analysis of on-sky data, resonance sources identification, and future challenges in vibrations mitigation
2016
Adaptive Optics Systems V
2016
Possible Identification of the Progenitor of SN 2016adj in NGC 5128 (Centaurus A)
2016
A review of astronomical science with visible light adaptive optics
2016
The LEECH Exoplanet Imaging Survey: Orbit and Component Masses of the Intermediate-Age, Late-Type Binary NO UMa
2016
Adaptive Optics imaging of VHS 1256-1257: A Low Mass Companion to a Brown Dwarf Binary System
2016
MagAO: status and science
2016
MagAO Imaging of Long-period Objects (MILO). II. A Puzzling White Dwarf around the Sun-like Star HD 11112
2016
Imaging protoplanets: observing transition disks with non-redundant masking
2016
High-contrast imaging in the cloud with klipReduce and Findr
2016
The path to visible extreme adaptive optics with MagAO-2K and MagAO-X
2016
Magellan AO System z\prime, Y $_ S $, and L\prime Observations of the Very Wide 650 AU HD 106906 Planetary System
2016
MagAO Imaging of Long-period Objects (MILO). I. A Benchmark M Dwarf Companion Exciting a Massive Planet around the Sun-like Star HD 7449
2016
{Mapping the Distributions of Exoplanet Populations with NICI and GPI}
2016
SHARK-NIR: from K-band to a key instrument, a status update
2016
Laser Guidestar Satellite for Ground-based Adaptive Optics Imaging of Geosynchronous Satellites
2016
VizieR Online Data Catalog: MILO. I. HD 7449 radial velocities (Rodigas+, 2016)
2016
Discovery and Validation of a High-Density sub-Neptune from the K2 Mission
2016
Vibrations in MagAO: resonance sources identification and first approaches for modeling and control
2016
Magellan AO System z′, Y $_ S $, and L′ Observations of the Very Wide 650 AU HD 106906 Planetary System
2016
L-band Spectroscopy with Magellan-AO/Clio2: First Results on Young Low-mass Companions
2016
On-sky demonstration of the GMT dispersed fringe phasing sensor prototype on the Magellan Telescope
2016
An Accreting Protoplanet: Confirmation and Characterization of LkCa15b
2015
{SEEDS Adaptive Optics Imaging of the Asymmetric Transition Disk Oph IRS 48 in Scattered Light}
2015
New Extinction and Mass Estimates from Optical Photometry of the Very Low Mass Brown Dwarf Companion CT Chamaeleontis B with the Magellan AO System
2015
{The LEECH Exoplanet Imaging Survey. Further constraints on the planet architecture of the HR 8799 system (Corrigendum)}
2015
Magellan Adaptive Optics First-light Observations of the Exoplanet \ensuremathβ Pic b. II. 3-5 \ensuremathμm Direct Imaging with MagAO+Clio, and the Empirical Bolometric Luminosity of a Self-luminous Giant Planet
2015
{The LEECH Exoplanet Imaging Survey. Further constraints on the planet architecture of the HR 8799 system}
2015
{Multiwavelength observations of NaSt1 (WR 122): equatorial mass loss and X-rays from an interacting Wolf-Rayet binary}
2015
{New Spatially Resolved Observations of the T Cha Transition Disk and Constraints on the Previously Claimed Substellar Companion}
2015
{On the Morphology and Chemical Composition of the HR 4796A Debris Disk}
2015
Prototyping the GMT phasing camera with the Magellan AO system
2015
Accreting protoplanets in the LkCa 15 transition disk
2015
{Magellan Adaptive Optics First-light Observations of the Exoplanet {$beta$} Pic b. II. 3-5 {$mu$}m Direct Imaging with MagAO+Clio, and the Empirical Bolometric Luminosity of a Self-luminous Giant Planet}
2015
Direct Exoplanet Detection with Binary Differential Imaging
2015
The Gemini NICI Planet-Finding Campaign: asymmetries in the HD 141569 disc
2015
{New Extinction and Mass Estimates of the Low-mass Companion 1RXS 1609 B with the Magellan AO System: Evidence of an Inclined Dust Disk}
2015
The Absolute Age of the Globular Cluster M15 Using Near-infrared Adaptive Optics Images from PISCES/LBT.
2015
SHARK-NIR Channel: a high contrast imager with coronagraphic capabilities for the Large Binocular Telescope
2015
The Subaru Coronagraphic Extreme Adaptive Optics System: Enabling High-Contrast Imaging on Solar-System Scales
2015
Into the blue: AO science with MagAO in the visible
2014
Direct imaging of exoplanets in the habitable zone with adaptive optics
2014
The LEECH Exoplanet Imaging Survey. Further constraints on the planet architecture of the HR 8799 system
2014
HD 106906 b: A Planetary-mass Companion Outside a Massive Debris Disk
2014
An Enigmatic Point-like Feature within the HD 169142 Transitional Disk
2014
SHARK (System for coronagraphy with High order Adaptive optics from R to K band): a proposal for the LBT 2nd generation instrumentation
2014
MagAO: Status and on-sky performance of the Magellan adaptive optics system
2014
Visible AO Observations at Halpha for Accreting Young Planets
2014
Discovery of H\ensuremathα Emission from the Close Companion inside the Gap of Transitional Disk HD 142527
2014
The Gemini NICI Planet-Finding Campaign: The Orbit of the Young Exoplanet \ensuremathβ Pictoris b
2014
A Unified Analysis of Brown Dwarf and Exoplanet Companions from Direct Imaging Surveys
2014
Testing Atmospheric Models Across the Brown Dwarf/Planet Boundary with Benchmark Young Substellar Companions
2014
The atmosphere of Beta Pictoris b via 0.9-5um imaging with Magellan Adaptive Optics
2014
Discovery of H$alpha$ Emission from the Close Companion inside the Gap of Transitional Disk HD 142527
2014
High-Contrast Near-Infrared Imaging and Modeling of Planets and Debris Disks
2014
The Gemini NICI planet-finding campaign: The offset ring of HR 4796 A
2014
Results from the Gemini NICI Planet-Finding Campaign
2014
A Direct Imaging Study to Search for and to Characterize Planetary Mass Companions
2014
High contrast imaging at the LBT: the LEECH exoplanet imaging survey
2014
Magellan Adaptive Optics First-light Observations of the Exoplanet \ensuremathβ Pic B. I. Direct Imaging in the Far-red Optical with MagAO+VisAO and in the Near-ir with NICI
2014
Direct Imaging of Extrasolar Giant Planets in the Habitable Zone
2014
The Orbit of the Young Exoplanet beta Pictoris b
2014
High Contrast Imaging of an Exoplanet with the Magellan VisAO Camera
2014
H-alpha as a Probe of Very Low-mass Planets: The GAPplanetS Survey With the MagAO System
2014
LEECH: A 100 Night Exoplanet Imaging Survey at the LBT
2014
Visible Light Adaptive Optics Imaging of the Orion 218-354 Silhouette Disk
2014
Filling in the Gaps: Illuminating Clearing Mechanisms in Transitional Circumstellar Disks
2014
New Frontiers in Circumstellar Science with MagAO's Visible Light Simultaneous Differential Imaging Mode
2014
The Gemini NICI Planet-Finding Campaign: The Orbit of the Young Exoplanet $beta$ Pictoris b
2014
Toward visible wavelength coherent imaging with the LBT
2014
Direct imaging of Beta Pictoris b with first-light Magellan Adaptive Optics
2014
Directly Imaged L-T Transition Exoplanets in the Mid-infrared
2014
Polarized Light Imaging of the HD 142527 Transition Disk with the Gemini Planet Imager: Dust around the Close-in Companion
2014
Diffraction-limited Visible Light Images of Orion Trapezium Cluster with the Magellan Adaptive Secondary Adaptive Optics System (MagAO)
2013
A 100-Night Exoplanet Imaging Survey at the LBT
2013
Direct Imaging in the Habitable Zone and the Problem of Orbital Motion
2013
Design, Implementation, and On-Sky Performance of an Advanced Apochromatic Triplet Atmospheric Dispersion Corrector for the Magellan Adaptive Optics System and VisAO Camera
2013
A Diffraction-limited Survey for Direct Detection of Halpha Emitting/Accreting ExtraSolar Planets with the 6.5m Magellan Telescope and the MagAO Visible AO system
2013
The Gemini/NICI Planet-Finding Campaign: The Frequency of Planets around Young Moving Group Stars
2013
The Gemini Planet-finding Campaign: The Frequency Of Giant Planets around Debris Disk Stars
2013
The Gemini NICI Planet-Finding Campaign: The Frequency of Giant Planets Around Debris Disk Stars
2013
The First Circumstellar Disk Imaged in Silhouette at Visible Wavelengths with Adaptive Optics: MagAO Imaging of Orion 218-354
2013
The Gemini NICI Planet-Finding Campaign: the Frequency of Giant Planets Around Young A Stars
2013
High Resolution H$alpha$ Images of the Binary Low-mass Proplyd LV 1 with the Magellan AO System
2013
LBT observations of the HR 8799 planetary system. First detection of HR 8799e in H band
2013
High Contrast Imaging with the Magellan VisAO Camera
2013
High Resolution H\ensuremathα Images of the Binary Low-mass Proplyd LV 1 with the Magellan AO System
2013
Mapping H-band Scattered Light Emission in the Mysterious SR21 Transitional Disk
2013
The Gemini NICI Planet-Finding Campaign: The Companion Detection Pipeline
2013
The Gemini NICI Planet-Finding Campaign: The Frequency of Giant Planets around Young B and A Stars
2013
Into the Blue: AO Science in the Visible with MagAO
2013
High-Contrast Exoplanet Imaging with CLIO2, the Magellan Adaptive Optics Infrared Camera
2013
Magellan Adaptive Optics First Light Results
2013
Early Visible Adaptive Optics Science Results from MagAO's VisAO Camera in Simultaneous Differential Imaging (SDI) Mode: Disks and Point Sources
2013
Keplerian Periodicity in the Photometric Variability of VV Serpentis
2013
The Gemini NICI Planet-Finding Campaign: Planet Frequency for Young Moving Group Stars
2013
Four Decades of IRC +10216: Evolution of a Carbon-rich Dust Shell Resolved at 10 \ensuremathμm with MMT Adaptive Optics and MIRAC4
2012
First Light LBT AO Images of HR 8799 bcde at 1.6 and 3.3 $mu$m: New Discrepancies between Young Planets and Old Brown Dwarfs
2012
First Light LBT AO Images of HR 8799 bcde at 1.6 and 3.3 \ensuremathμm: New Discrepancies between Young Planets and Old Brown Dwarfs
2012
Weather on Planets: A Search for Photometric Variability in the Young Exoplanets HR 8799bc
2012
High-contrast imaging in the Hyades with snapshot LOCI
2012
Status update and closed-loop performance of the Magellan adaptive optics VisAO camera
2012
First closed-loop visible AO test results for the advanced adaptive secondary AO system for the Magellan Telescope: MagAO's performance and status
2012
The Gemini NICI Planet-Finding Campaign: Discovery of a Multiple System Orbiting the Young A Star HD 1160
2012
A revised orbital ephemeris for HAT-P-9b
2012
High-resolution Images of Orbital Motion in the Orion Trapezium Cluster with the LBT AO System
2012
Four Decades of IRC +10216: Evolution of a Carbon-rich Dust Shell Resolved at 10 $mu$m with MMT Adaptive Optics and MIRAC4
2012
Laboratory demonstration of real time frame selection with Magellan AO
2012
The Gray Needle: Large Grains in the HD 15115 Debris Disk from LBT/PISCES/Ks and LBTI/LMIRcam/L' Adaptive Optics Imaging
2012
The Gemini NICI Planet-finding Campaign: Discovery of a Substellar L Dwarf Companion to the Nearby Young M Dwarf CD-35 2722
2011
The Gemini NICI Planet-Finding Campaign: Discovery of a Substellar L Dwarf Companion to a Nearby Young M Dwarf.
2011
Dust Grain Evolution in Spatially Resolved T Tauri Binaries
2011
Sirius B Imaged in the Mid-infrared: No Evidence for a Remnant Planetary System
2011
The Gemini NICI Planet-Finding Campaign: Statistical Constraints on Planet Populations
2011
A Keck LGS AO Search for Brown Dwarf and Planetary Mass Companions to Upper Scorpius Brown Dwarfs
2011
The Gemini NICI Planet-Finding Campaign: Combining Coronagraphy with Angular and Spectral Differencing imaging.
2011
Wide Tertiary Companions to Nearby Spectroscopic Binaries: A Close Look with Gemini-North AO
2011
Evidence Against an Edge-on Disk Around the Extrasolar Planet, 2MASS 1207 b and a New Thick-cloud Explanation for Its Underluminosity
2011
On the Frequency of Additional Planets in Short Period Hot Jupiter Systems from Transit Timing Variations
2011
Constraining the Evolution of Brown Dwarf Binarity as a Function of Age: A Keck LGS AO Search for Brown Dwarf and Planetary Mass Companions to Upper Scorpius Brown Dwarfs
2011
The size of AB Doradus A from VLTI/AMBER interferometry
2011
An Advanced Atmospheric Dispersion Corrector: The Magellan Visible AO Camera
2010
Dynamical masses for the nearest brown dwarf binary: \ensuremath∈ Indi Ba,b
2010
A Multi-Epoch Survey for Faint, Close, Low-Mass Tertiaries to Nearby Spectroscopic Binaries: The Second Epoch
2010
ISM Dust Grains and N-band Spectral Variability in the Spatially Resolved Subarcsecond Binary UY Aur
2010
On the Apparent Orbital Inclination Change of the Extrasolar Transiting Planet TrES-2b
2010
The first VisAO-fed integral field spectrograph: VisAO IFS
2010
The Gemini NICI Planet-Finding Campaign: Discovery of a Close Substellar Companion to a Young Solar Analog
2010
The Gemini NICI Planet-Finding Campaign: Deep Imaging of Stars in the Solar Neighborhood
2010
Frame selection techniques for the Magellan adaptive optics VisAO camera
2010
A Search for Wide Companions to the Extrasolar Planetary System HR 8799
2010
The AB Doradus System Revisited: The Dynamical Mass of AB Dor A
2010
On the Road to Imaging Extrasolar Planets: Null Results, Other Discoveries Along the Way, and Signposts for the Future
2010
Transit Observations of the WASP-10 System
2010
Extrasolar planets: A giant surprise
2010
The Gemini NICI Planet-Finding Campaign: A Direct Imaging Search for Planets around Beta Pictoris and TW Hydra
2010
Dynamical masses for the nearest brown dwarf binary: $epsilon$ Indi Ba,b
2010
A Uniform Analysis of 118 Stars with High-contrast Imaging: Long-period Extrasolar Giant Planets are Rare Around Sun-like Stars
2010
The Magellan Adaptive Secondary VisAO Camera: diffraction-limited broadband visible imaging and 20mas fiber array IFU
2010
The Gemini NICI Planet-finding Campaign: Discovery of a Close Substellar Companion to the Young Debris Disk Star PZ Tel
2010
The Magellan Telescope Adaptive Secondary AO System: a visible and mid-IR AO facility
2010
NACO-SDI imaging of known companion host stars from the AAPS and Keck planet search surveys
2010
The Magellan Telescope Deformable Secondary Adaptive Optics System
2009
The First Spatially Resolved Mid-IR Spectra of Binaries with Adaptive Optics
2009
The Gemini NICI Planet-Finding Campaign
2009
A Tentative Detection of a Starspot During Consecutive Transits of an Extrasolar Planet from the Ground: No Evidence of a Double Transiting Planet System Around TrES-1
2009
Diffraction Limited Narrowband Mid-IR Imaging Of The Carbon Rich AGB Star IRC +10216 At The MMT
2009
A Uniform Analysis of 118 Sun-like Stars with High-Contrast Adaptive Optics Imaging: Long Period Giant Planets are Rare
2009
Follow-up Observations of the Neptune Mass Transiting Extrasolar Planet HAT-P-11b
2009
A Survey for Faint, Close, Low-Mass Tertiaries to Nearby Spectroscopic Binaries
2009
Dynamical masses for the nearest brown dwarf binary: $epsilon$ Indi Ba, Bb
2009
Dynamical masses for the nearest brown dwarf binary: \ensuremath∈ Indi Ba, Bb
2009
A Direct Measurement of Atmospheric Dispersion in N-band Spectra: Implications for Mid-IR Systems on ELTs
2009
A Multiwavelength Differential Imaging Experiment for the High Contrast Imaging Testbed
2009
Direct detection and spectroscopic characterizatoin of extrasolar planets
2009
Developing Future Generations of Instrument Builders
2009
Direct Planet Imaging with NICI: Combining Angular and Spectral Difference Imaging
2009
A Direct Measurement of Atmospheric Refraction in N-band AO Spectra: Implications for Mid-IR Systems on ELTs
2009
Very Low Mass Stellar and Brown Dwarf Binaries Observed with Adaptive Optics
2009
The First Thermal Images of the Planetary Mass Prototype Object 2M1207b: Does it have an Edge-On Disk?
2009
Resolved Silicate Emission in T Tauri Binaries: Determining the Parameters that Lead to Planet Formation
2009
Enabling technologies for visible adaptive optics: the Magellan adaptive secondary VisAO camera
2009
The Characteristics and Periodicity of Extinction Events in VV Ser: A Map of Dust Structures in the Inner-Rim of a Herbig AeBe Disk
2008
An advanced atmospheric dispersion corrector for extreme AO
2008
Contrast Enhancement of Binary Star System Using an Optical Vortex Coronagraph
2008
A high-Strehl low-resolution optical imager (BESSEL): a measurement of the inner scale of turbulence
2008
Observing strategies for the NICI campaign to directly image extrasolar planets
2008
Evidence for Misaligned Disks in the T Tauri Triple System: 10 $mu$m Superresolution with MMTAO and Markov Chains
2008
Imaging ejecta from the final flash star V605 Aquilae
2008
Performance of the near-infrared coronagraphic imager on Gemini-South
2008
A high-Strehl low-resolution optical imager (BESSEL): Detection of a 0.7 \ensuremathλ/ D separation binary from the ground
2008
A high-Strehl low-resolution optical imager (BESSEL): Detection of a 0.7 $lambda$/ D separation binary from the ground
2008
The Magellan Telescope adaptive secondary AO system
2008
Constraints on Extrasolar Planet Populations from VLT NACO/SDI and MMT SDI and Direct Adaptive Optics Imaging Surveys: Giant Planets are Rare at Large Separations
2008
Dense Molecular Gas in a Young Cluster around MWC 1080: Rule of the Massive Star
2008
NICI: combining coronagraphy, ADI, and SDI
2008
Evidence for Misaligned Disks in the T Tauri Triple System: 10 \ensuremathμm Superresolution with MMTAO and Markov Chains
2008
Astronomical demonstration of an optical vortex coronagraph
2008
Differential Imaging Search for the Giant Planet Epsilon Eri b with ESO-VLT
2007
The First Resolution of the 0.1 arc sec Binary T Tau Sa and Sb at 10 micron with MMT Mid-IR AO and Super-Resolution
2007
Improved age constraints for the AB Doradus quadruple system. The binary nature of AB Doradus B
2007
Optical Vortex Coronagraph
2007
New Photometry and Spectra of AB Doradus C: An Accurate Mass Determination of a Young Low-Mass Object with Theoretical Evolutionary Tracks
2007
A direct and differential imaging search for sub-stellar companions to $epsilon$ Indi A
2007
Discovery of a 66 mas Ultracool Binary with Laser Guide Star Adaptive Optics
2007
An Imaging Survey for Extrasolar Planets around 54 Close, Young Stars with SDI at the VLT and MMT
2007
Extrasolar Planet Imaging with the Giant Magellan Telescope
2007
NACO-SDI Direct Imaging Search for the Exoplanet \ensuremath∈ Eri b
2007
The Wide Brown Dwarf Binary Oph 1622-2405 and Discovery of a Wide, Low-Mass Binary in Ophiuchus (Oph 1623-2402): A New Class of Young Evaporating Wide Binaries?
2007
The very nearby M/T dwarf binary SCR 1845-6357
2007
An Imaging Survey for Extrasolar Planets around 45 Close, Young Stars with the Simultaneous Differential Imager at the Very Large Telescope and MMT
2007
The Search for Trojan Binaries
2007
Discovery of Nine New Companions to Nearby Young M Stars with the Altair AO System
2007
Advancements of the optical vortex coronagraph
2007
Not Alone: Tracing the Origins of Very-Low-Mass Stars and Brown Dwarfs Through Multiplicity Studies
2007
NACO-SDI Direct Imaging Search for the Exoplanet $epsilon$ Eri b
2007
Very high contrast integral field spectroscopy of AB Doradus C: 9-mag contrast at 0.2arcsec without a coronagraph using spectral deconvolutiondagger
2007
A direct and differential imaging search for sub-stellar companions to \ensuremath∈ Indi A
2007
A Direct Distance and Luminosity Determination for a Self-luminous Giant Exoplanet: The Trigonometric Parallax to 2MASSW J1207334-393254Ab
2007
Detection of ExtraSolar Planets and Brown Dwarfs with LGS AO
2007
BESSEL: A High Strehl Visible Telescopic Test Bed for Planet Finding Coronagraphs
2007
Detection of Planetary Mass Objects with Laser Guide Star Adaptive Optics
2007
On the Age, Spectral Type, Orbit, and Comparison to Evolutionary Models of AB Dor C
2006
Contrast limits with the Simultaneous Differential Extrasolar Planet Imager (SDI) at the VLT and MMT
2006
Ground-based direct imaging of extra-solar planets supported by AO
2006
Studying Small Solar System Objects with Adaptive Optics in the Context of Space Missions
2006
Exoplanet imaging with the Giant Magellan Telescope
2006
Resolving the Dusty Circumstellar Structure of the Enigmatic Symbiotic Star CH Cygni with the MMT Adaptive Optics System
2006
Discovery of the Closest Brown Dwarf to the Sun? A Methane Rich Brown Dwarf around the Nearby M8.5 Star SCR 1845-6357
2006
L-band search for substellar companions in the Tucana and $beta$ Pictoris moving groups
2006
On the dynamics of the AB Doradus system
2006
A reflective Gaussian coronagraph for ExAO: laboratory performance
2006
Direct Distance Determination for an Extrasolar Planet Candidate and Young Brown Dwarfs
2006
A Survey of Close, Young Stars with the Simultaneous Differential Imager (SDI) at the VLT and MMT
2006
A Survey of Close, Young Stars with SDI at the VLT and MMT
2006
Simulating Extrasolar Planet Populations for Direct Imaging Surveys
2006
A Reflective Gaussian Coronagraph for Extreme Adaptive Optics: Laboratory Performance
2006
Discovery of a Brown Dwarf Very Close to the Sun: A Methane-rich Brown Dwarf Companion to the Low-Mass Star SCR 1845-6357
2006
L-band search for substellar companions in the Tucana and \ensuremathβ Pictoris moving groups
2006
Searching for planetary-mass companions to the youngest, nearest M dwarfs
2006
Extra-Solar Planets Searches with Direct Imaging from the Ground
2005
New observing modes of NACO
2005
Discovery of Two Very Low Mass Binaries: Final Results of an Adaptive Optics Survey of Nearby M6.0-M7.5 Stars
2005
AB Dor C: The First Dynamical Calibration of the Mass-Luminosity-Age Relation at Very Low Masses and Young Ages
2005
Searching for planetary-mass companions to the nearest, youngest M dwarfs
2005
Koronis binaries and the role of families in binary frequency
2005
Simulating Extrasolar Planet Populations
2005
A Survey of the Closest, Youngest Stars with the Simultaneous Differential Extrasolar Planet Imager (SDI) at the VLT and MMT
2005
NACO-SDI: A Novel Simultaneous Differential Imager for the Direct Imaging of Giant Extra-Solar Planets
2005
A dynamical calibration of the mass-luminosity relation at very low stellar masses and young ages
2005
Selected Examples of Solar and Extra-Solar Planetary Science with AO
2005
High-Resolution Mid-Infrared Imaging of the Asymptotic Giant Branch Star RV Bootis with the Steward Observatory Adaptive Optics System
2005
AB Doradus C: age, spectral type, orbit, and comparison to evolutionary models
2005
Adaptive Optics Science with the MMT Adaptive Secondary: Mid-IR AO Imaging of the Post-AGB Star AC Her
2005
A novel simultaneous differential imager for the direct imaging of giant planets
2004
First determination of the dynamical mass of a binary L dwarf
2004
S/2004 (4674) 1
2004
$epsilon$ Indi Ba,Bb: The nearest binary brown dwarf
2004
The First Adaptive Optics High Resolution Mid-IR Imaging of Evolved Stars: Case Studies of RV Boo and AC Her
2004
A new VLT surface map of Titan at 1.575 microns
2004
Discovery of binaries among small asteroids in the Koronis dynamical family using the HST Advanced Camera for Surveys
2004
PEPPER: a photometer designed for the direct detection of extrasolar planets
2004
S/2004 (17246) 1
2004
Suppressing speckle noise for simultaneous differential extrasolar planet imaging (SDI) at the VLT and MMT
2004
\ensuremath∈ Indi Ba,Bb: The nearest binary brown dwarf
2004
Guiding on the Edge (V̊aisebox-0.5ex~19): Results from an AO Survey of Very Low Mass Stars Searching for Extremely Faint Companions
2003
S/2003 (22899) 1
2003
A Review of Published Adaptive Optics Science: A Bright Future for Adaptive Optics
2003
A Hokupa'a/Gemini Survey of the Lowest Mass/Faintest Guide Stars: The Very Low Mass Binary Population and its Implications for Brown Dwarf Formation Theories
2003
S/2003 (1509) 1
2003
S/2003 (283) 1
2003
Towards 1$^st$ light of the 6.5m MMT adaptive optics system with deformable secondary mirror
2003
Discovery of new asteroid binaries (121) Hermione and (1509) Esclangona
2003
Mid-Infrared Imaging of the Post-Asymptotic Giant Branch Star AC Herculis with the Multiple Mirror Telescope Adaptive Optics System
2003
Discovery of Three Very Low Mass Binary Systems: An Adaptive Optics Survey of M6.0--M7.5 Stars
2003
Detection of Nine M8.0-L0.5 Binaries: The Very Low Mass Binary Population and Its Implications for Brown Dwarf and Very Low Mass Star Formation
2003
Detection of Nine M8.0--L0.5 Binaries: The Very Low Mass Binary Population and Its Implications for Brown Dwarf Formation Theories
2003
First light of the 6.5-m MMT adaptive optics system
2003
S/2003 (130) 1
2003
Near-Infrared Adaptive Optics Imaging of the Embedded Cluster NGC 2024
2003
Discovery of a Tight Brown Dwarf Companion to theLow-Mass Star LHS 2397a
2003
Guiding on the Edge (V~19): Results from an AO Survey of Very Low Mass Stars Searching for Extremely Faint Companions
2003
MEDI: An Instrument for Direct Detection of Massive Extrasolar Planets
2003
An Adaptive Optics Survey of M6.0-M7.5 Stars: Discovery of Three Very Low Mass Binary Systems Including Two Probable Hyades Members
2003
High-Resolution Images of Orbital Motion in the Trapezium Cluster: First Scientific Results from the Multiple Mirror Telescope Deformable Secondary Mirror Adaptive Optics System
2003
S/2002 (121) 1
2002
S/2002 (3749) 1
2002
An Adaptive Optics Survey of M8-M9 Stars: Discovery of Four Very Low Mass Binaries with at Least One System Containing a Brown Dwarf Companion
2002
Discovery of a Loosely-bound Companion to Main-belt Asteroid (3749) Balam
2002
Discovery of a 0.15'' Binary Brown Dwarf, 2MASS J1426316+155701, with Gemini/Hokupa'a Adaptive Optics
2002
Imaging Ejecta from the Final Flash Star V605 Aql
2002
Erratum: ``An Adaptive Optics Survey of M8-M9 Stars: Discovery of Four Very Low Mass Binaries with at Least One System Containing a Brown Dwarf Companion`` (<A href=''/abs/2002ApJ...567L..53C''>ApJ, 567, L53 [2002]</A>)
2002
S/2001 (22) 1
2001
Search for Asteroid Satellites
2001
S/2001 (617) 1
2001
Adaptive Optics Imaging of Faint Companions: Current amp Future Prospects
2001
A High Dynamic Range Dual Imaging Polarimetric Survey of Circumstellar Disks around Young Stars using Gemini North with Hokupa`a
2001
Imaging the Ejecta from the Final Flash Star V605 Aql
2001
Binarity in the Young Open Cluster \ensuremathα Persei (CD-ROM Directory: contribs/eisloff)
2001
Direct imaging of very low mass companions
2001
Gliese 569B: A Young Multiple Brown Dwarf System?
2001
Binarity in the Young Open Cluster $alpha$ Persei (CD-ROM Directory: contribs/eisloff)
2001
StarFinder: A code for stellar field analysis
2000
Adaptive optics imaging of Pluto-Charon and the discovery of a moon around the Asteroid 45 Eugenia: the potential of adaptive optics in planetary astronomy
2000
Search for asteroidal satellites using adaptive optics
2000
ESO photometric and astrometric analysis program for AO: a programmatic and numerical analysis
2000
Analysis of isoplanatic high resolution stellar fields by the StarFinder code
2000
Review of published galactic and solar system science: a bright future for adaptive optics science
2000
MACAO and its application for the VLT interferometer
2000
Gemini/Hokupa`a Adaptive Optics Observations of Circumstellar Disks
2000
VLT-detection of two edge-on Circumstellar Disks in the rho Oph dark cloud
2000
A High-Resolution Polarimetry Map of the Circumbinary Disk around UY Aurigae
2000
Satellites of Minor Planets
2000
Adaptive Optics Imaging of Faint Companions: Test Case of MWC480
2000
Substellar mass companion search with adaptive optics at University of Hawaii
2000
Discovery of Companions to Asteroids 762 Pulcova and 90 Antiope by Direct Imaging
2000
High-Resolution Optical and Near-Infrared Imaging of Young Circumstellar Disks
2000
StarFinder: a code to analyse isoplanatic high-resolution stellar fields.
2000
The ESO photometric and astrometric analysis programme for adaptive optics.
2000
Starfinder: a Code for Crowded Stellar Fields Analysis
2000
ESO Photometric and Astrometric Analysis Program for Adaptive Optics 381
2000
StarFinder: an IDL GUI-based code to analyze crowded fields with isoplanatic correcting PSF fitting
2000
Adaptive Optics Imaging of the Orion Trapezium Cluster
1999
Discovery of asteroidal satellite S/1998 (45) 1.
1999
Planetary Science with Adaptive Optics: Results from the UH AO Systems
1999
S/1998 (45) 1
1999
Discovery of Asteroidal Satellite S/1998 (45) 1
1999
Adaptive Optics Imaging of Pluto-Charon and the Discovery of a Moon aroun d the Asteroid 45 Eugenia: The Potential of Adaptive Optics in Planetary Astrono my
1999
Discovery of a moon orbiting the asteroid 45 Eugenia
1999
Adaptive Optics J Band Imaging Polarimetry Observations of the Circumbinary Disk Around UY Aurigae
1999
Adaptive Optics Imaging and Spectroscopy of MWC 1080
1999
Astronomy with Adaptive Optics: Experiences from the University of Hawaii AO Program
1999
An Adaptive Optics search for Low Mass Companions in the Ursa Major Stream
1999
Low-Mass Binaries in Young Stellar Clusters: A Deep Near-Infrared Adaptive Optics Survey
1999
Four-Year Observations of T Tauri With Adaptive Optics
1999
Adaptive Optics Imaging of the Circumbinary Disk around the T Tauri Binary UY Aurigae: Estimates of the Binary Mass and Circumbinary Dust Grain Size Distribution
1998
First light for Hokupa'a: 36-element curvature AO system at UH
1998
Scientific results from the University of Hawaii: adaptive problems well suited to AO techniques
1998
PG 1700+518 Revisited: Adaptive-Optics Imaging and a Revised Starburst Age for the Companion
1998
HST NICMOS Observations of Circumstellar Matter Around CYG X-3
1998
Adaptive Optics Provides a Sharp Image of Io's Volcanoes
1998
Adaptive Optics Infrared Imaging Polarimetry and Optical HST Imaging of Hubble's Variable Nebula (R Monocerotis/NGC 2261): A Close Look at a Very Young Active Herbig Ae/Be Star
1997
Adaptive Optics 0.2'' Resolution Infrared Images of HL Tauri: Direct Images of an Active Accretion Disk around a Protostar
1997
A Model of Scattering from Dust in Proto-planetary Disks applied to O.1'' resolution U. of Hawaii Adaptive Optics Images of the Disk around Young Stars
1997
High-Resolution V, I, and K-Band Imaging of Faint Field Galaxies from the HST Medium-Deep Survey
1997
The First Infrared Images of An Accretion Disk Around HL Tau
1996
The Peculiar Population of Hot Stars at the Galactic Center
1996
Stellar Kinematics and the Black Hole in the Galactic Center
1996
Stellar Kinematics and the Black Hole in the Galactic Center: Erratum
1996
An introduction to FASTTRAC II and the latest results from FASTTRAC I: 0.2'' imaging of the galactic center
1996
FASTTRAC II near-IR adaptive optics system for the Multiple Mirror Telescope: description and preliminary results
1995
Infrared photometry of the black hole candidate Sagittarius A*
1995
Spectroscopic and Morphological Evidence That IRAS FSC 10214+4724 Is a Gravitational Lens
1995
High Resolution Near-Infrared Imaging with Tip - Adaptive Optics.
1995
Observations of the Gravitational Lens System IRAS FSC 10214+4724
1995
Adaptive beam-combining mirror for the MMT
1995
Infrared Photometry of the Black Hole Candidate Sagittarius A *
1995
General Relativistic Flux Modulations in the Galactic Center Black Hole Candidate Sagittarius A*
1995
The HST Medium Deep Survey: Steward BVRIJK and FASTTRAK JHK imaging and photometry of faint field galaxies from parallel WF/PC images
1994
FASTTRAC I: A High Resolution Infrared Tip-Tilt Imager
1994
High-resolution imaging with a tip-tilt Cassegrain secondary
1994
High Resolution Imaging with a Tip-Tilt Cassegrain Secondary
1994
High-resolution infrared imaging utilizing a tip-tilt secondary mirror
1994
Infrared imaging using a tip-tilt secondary mirror
1993
Infrared Imaging Using a Prototype Adaptive Secondary Mirror for Rapid Tip-Tilt Correction
1992
What Color is Black? Multi-Band Photometry at the location of the Black Hole Candidate SGR A*
1992
Infrared imaging using a tip/tilt secondary mirror.
1992

A Complete Sample of Wide Binaries in the Solar Neighborhood
1990

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