activity
20102026
most citedARGOS at the LBT. Binocular laser guided ground layer adaptive optics

25 citations · 87 across the 20 of their papers we have counts for

collaborators

23 papers

astro-ph.IM2026

The final design of GMagAO-X: high-contrast imaging at first-light of the GMT

Jared R. Males, Laird M. Close, Sebastiaan Y. Haffert +13

GMagAO-X will be the first-light high-contrast imager on the 25 m Giant Magellan Telescope. The driving science case for GMagAO-X is characterization of the atmospheres of nearby r…

astro-ph.IM2025

Optical design and polarimetric performance of a SmallSat UV polarimeter to study interstellar dust: PUFFINS

Ramya M Anche, Hyukmo Kang, Kyle Van Gorkom +19

The Polarimetry in the Ultraviolet to Find Features in INterStellar dust (PUFFINS) is a SmallSat mission concept designed to obtain ultraviolet (UV) spectropolarimetric observation…

astro-ph.EP2025

Wide Separation Planets In Time (WISPIT): Discovery of a Gap H Protoplanet WISPIT 2b with MagAO-X

Laird M. Close, Richelle F. van Capelleveen, Gabriel Weible +34

Excellent (<25 mas) H images of the star TYC 5709-354-1 led to the discovery of a rare H protoplanet. This star was discovered by the WISPIT survey to have a large multi-ri…

astro-ph.SR2025

Five New Sirius-Like White Dwarf + Main Sequence Star Systems with MagAO-X

Logan A. Pearce, Jared R. Males, Sebastiaan Y. Haffert +20

Most known white dwarfs in multiple systems with main sequence stars have been discovered with M-type companions, because the white dwarf causes detectable UV excess and bluer colo…

astro-ph.EP2025★ 23 cited

Three Years of High-Contrast Imaging of the PDS 70 b and c Exoplanets at Hα with MagAO-X: Evidence of Strong Protoplanet Hα Variability and Circumplanetary Dust

Laird M. Close, Jared R. Males, Jialin Li +23

We present 3 years of high-contrast imaging of the PDS 70 b and c accreting protoplanets with the new extreme AO system MagAO-X as part of the MaxProtoPlanetS survey of H protop…

astro-ph.IM2025★ 5 cited

Phasing the Giant Magellan Telescope: Lab Experiments and First On-sky Demonstration

Maggie Y. Kautz, Sebastiaan Y. Haffert, Laird M. Close +21

The large apertures of the upcoming generation of Giant Segmented Mirror Telescopes will enable unprecedented angular resolutions that scale as /D and higher sensitivi…

astro-ph.IM2024

High-Contrast Imaging at First-Light of the GMT: The Preliminary Design of GMagAO-X

Jared R. Males, Laird M. Close, Sebastiaan Y. Haffert +15

We present the preliminary design of GMagAO-X, the first-light high-contrast imager planned for the Giant Magellan Telescope. GMagAO-X will realize the revolutionary increase in sp…

astro-ph.IM2024

MagAO-X: Commissioning Results and Status of Ongoing Upgrades

Jared R. Males, Laird M. Close, Sebastiaan Y. Haffert +20

MagAO-X is the coronagraphic extreme adaptive optics system for the 6.5 m Magellan Clay Telescope. We report the results of commissioning the first phase of MagAO-X. Components now…

astro-ph.IM2023

GMagAO-X: A First Light Coronagraphic Adaptive Optics System for the GMT

Maggie Kautz, Jared R. Males, Laird M. Close +17

GMagAO-X is a visible to NIR extreme adaptive optics (ExAO) system that will be used at first light for the Giant Magellan Telescope (GMT). GMagAO-X is designed to deliver diffract…

astro-ph.SR2023

HIP 67506 C: MagAO-X Confirmation of a New Low-Mass Stellar Companion to HIP 67506 A

Logan A. Pearce, Jared R. Males, Sebastiaan Y. Haffert +17

We report the confirmation of HIP 67506 C, a new stellar companion to HIP 67506 A. We previously reported a candidate signal at 2/D (240~mas) in L in MagAO/Clio imagi…

astro-ph.IM2022

The Optical and Mechanical Design for the 21,000 Actuator ExAO System for the Giant Magellan Telescope: GMagAO-X

Laird M. Close, Jared R. Males, Olivier Durney +9

GMagAO-X is the near first light ExAO coronagraphic instrument for the 25.4m GMT. It is designed for a slot on the folded port of the GMT. To meet the strict ExAO fitting and servo…

astro-ph.IM2022★ 1 cited

The conceptual design of GMagAO-X: visible wavelength high contrast imaging with GMT

Jared R. Males, Laird M. Close, Sebastiaan Y. Haffert +10

We present the conceptual design of GMagAO-X, an extreme adaptive optics system for the 25 m Giant Magellan Telescope (GMT). We are developing GMagAO-X to be available at or shortl…

astro-ph.IM2022

MagAO-X: current status and plans for Phase II

Jared R. Males, Laird M. Close, Sebastiaan Haffert +15

We present a status update for MagAO-X, a 2000 actuator, 3.6 kHz adaptive optics and coronagraph system for the Magellan Clay 6.5 m telescope. MagAO-X is optimized for high contras…

astro-ph.IM2021

The Versatile CubeSat Telescope: Going to Large Apertures in Small Spacecraft

Jaren N. Ashcraft, Ewan S. Douglas, Daewook Kim +10

The design of a CubeSat telescope for academic research purposes must balance complicated optical and structural designs with cost to maximize performance in extreme environments.…

astro-ph.IM2018★ 4 cited

Development of the Arizona Robotic Telescope Network

Benjamin J. Weiner, David Sand, Paul Gabor +9

The Arizona Robotic Telescope Network (ARTN) project is a long term effort to develop a system of telescopes to carry out a flexible program of PI observing, survey projects, and t…

astro-ph.IM2018

MagAO-X: project status and first laboratory results

Jared R. Males, Laird M. Close, Kelsey Miller +32

MagAO-X is an entirely new "extreme" adaptive optics system for the Magellan Clay 6.5 m telescope, funded by the NSF MRI program starting in Sep 2016. The key science goal of MagAO…

astro-ph.IM2018★ 3 cited

Optical and mechanical design of the extreme AO coronagraphic instrument MagAO-X

Laird M. Close, Jared R. Males, Olivier Durney +9

Here we review the current optical mechanical design of MagAO-X. The project is post-PDR and has finished the design phase. The design presented here is the baseline to which all t…

astro-ph.IM2018★ 25 cited

ARGOS at the LBT. Binocular laser guided ground layer adaptive optics

S. Rabien, R. Angel, L. Barl +48

Having completed its commissioning phase, the Advanced Rayleigh guided Ground-layer adaptive Optics System (ARGOS) facility is coming online for scientific observations at the Larg…

astro-ph.IM2014★ 2 cited

Status Update and Closed-Loop Performance of the Magellan Adaptive Optics VisAO Camera

Derek Kopon, Laird M. Close, Jared Males +3

We present laboratory results of the closed-loop performance of the Magellan Adaptive Optics (AO) Adaptive Secondary Mirror (ASM), pyramid wavefront sensor (PWFS), and VisAO visibl…

astro-ph.IM2013★ 15 cited

Design, implementation, and on-sky performance of an advanced apochromatic triplet atmospheric dispersion corrector for the Magellan adaptive optics system and VisAO camera

Derek Kopon, Laird M. Close, Jared R. Males +1

We present the novel design, laboratory verification, and on-sky performance of our advanced triplet atmospheric dispersion corrector (ADC), an important component of the Magellan…

astro-ph.IM2010★ 9 cited

The Magellan Adaptive Secondary VisAO Camera: Diffraction- Limited Broadband Visible Imaging and 20mas Fiber Array IFS

Derek Kopon, Laird M. Close, Jared R. Males +2

The Magellan Adaptive Secondary AO system, scheduled for first light in the fall of 2011, will be able to simultaneously perform diffraction limited AO science in both the mid-IR,…

astro-ph.IM2010

An Advanced Atmospheric Dispersion Corrector: The Magellan Visible AO Camera

Derek Kopon, Laird M. Close, Victor Gasho

In addition to the BLINC/MIRAC IR science instruments, the Magellan adaptive secondary AO system will have an EEV CCD47 that can be used both for visible AO science and as a wide-f…

astro-ph.IM2010

Enabling Technologies for Visible Adaptive Optics: The Magellan Adaptive Secondary VisAO Camera

Derek Kopon, Jared R. Males, Laird M. Close +1

Since its beginnings, diffraction-limited ground-based adaptive optics (AO) imaging has been limited to wavelengths in the near IR (λ > 1 micron) and longer. Visible AO (λ < 1 micr…