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The Giant Accreting Protoplanet Survey (GAPlanetS): Optimization Techniques for Robust Detections of Protoplanets
Jéa I. Adams Redai, Katherine B. Follette, Jason Wang +11
High-contrast imaging has afforded astronomers the opportunity to study light directly emitted by adolescent (tens of Myr) and ``proto" (10Myr) planets still undergoing formatio…
The Giant Accreting Protoplanet Survey (GAPlanetS) -- Results from a Six Year Campaign to Image Accreting Protoplanets
Katherine B. Follette, Laird M. Close, Jared R. Males +20
Accreting protoplanets represent a window into planet formation processes. We report Hα differential imaging results from the deepest and most comprehensive accreting protoplanet s…
Three-sided pyramid wavefront sensor. II. Preliminary demonstration on the new CACTI testbed
Lauren Schatz, Johanan Codona, Joseph D. Long +17
The next generation of giant ground and space telescopes will have the light-collecting power to detect and characterize potentially habitable terrestrial exoplanets using high-con…
XPipeline: Starlight subtraction at scale for MagAO-X
Joseph D. Long, Jared R. Males, Sebastiaan Y. Haffert +15
MagAO-X is an extreme adaptive optics (ExAO) instrument for the Magellan Clay 6.5-meter telescope at Las Campanas Observatory in Chile. Its high spatial and temporal resolution can…
A Novel Hexpyramid Pupil Slicer for an ExAO Parallel DM for the Giant Magellan Telescope
Maggie Kautz, Laird M. Close, Alex Hedglen +3
The 25.4m Giant Magellan Telescope (GMT) will be amongst the first in a new series of segmented extremely large telescopes (ELTs). The 25.4 m pupil is segmented into seven 8.4 m ci…
Advanced wavefront sensing and control demonstration with MagAO-X
Sebastiaan Y. Haffert, Jared R. Males, Kyle Van Gorkom +13
The search for exoplanets is pushing adaptive optics systems on ground-based telescopes to their limits. Currently, we are limited by two sources of noise: the temporal control err…
Visible extreme adaptive optics for GMagAO-X with the triple-stage AO architecture (TSAO)
Sebastiaan Y. Haffert, Jared R. Males, Laird M. Close +3
The Extremely Large Telescopes will require hundreds of actuators across the pupil for high Strehl in the visible. We envision a triple-stage AO (TSAO) system for GMT/GMagAO-X to a…
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…
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…
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…
The Visible Integral-field Spectrograph eXtreme (VIS-X): high-resolution spectroscopy with MagAO-X
Sebastiaan Y. Haffert, Jared R. Males, Laird M. Close +9
MagAO-X system is a new adaptive optics for the Magellan Clay 6.5m telescope. MagAO-X has been designed to provide extreme adaptive optics (ExAO) performance in the visible. VIS-X…
Companion Mass Limits for 17 Binary Systems Obtained with Binary Differential Imaging and MagAO/Clio
Logan A. Pearce, Jared R. Males, Alycia J. Weinberger +4
Improving direct detection capability close to the star through improved star-subtraction and post-processing techniques is vital for discovering new low-mass companions and charac…
The Giant Magellan Telescope high contrast adaptive optics phasing testbed (p-HCAT): lab tests of segment/petal phasing with a pyramid wavefront sensor and a holographic dispersed fringe sensor (HDFS) in turbulence
Alexander D. Hedglen, Laird M. Close, Sebastiaan Y. Haffert +14
The Giant Magellan Telescope (GMT) design consists of seven circular 8.4-m diameter mirror segments that are separated by large > 30 cm gaps, creating the possibility of fluctuatio…
The Holographic Dispersed Fringe Sensors (HDFS): phasing the Giant Magellan Telescope
Sebastiaan Y. Haffert, Laird M. Close, Alexander D. Hedglen +14
The next generation of Giant Segmented Mirror Telescopes (GSMT) will have large gaps between the segments either caused by the shadow of the mechanical structure of the secondary m…
Improved Orbital Constraints and H Photometric Monitoring of the Directly Imaged Protoplanet Analog HD 142527 B
William O. Balmer, Katherine B. Follette, Laird M. Close +9
Companions embedded in the cavities of transitional circumstellar disks have been observed to exhibit excess luminosity at H, an indication that they are actively accreting. We…
Towards on-sky adaptive optics control using reinforcement learning
J. Nousiainen, C. Rajani, M. Kasper +15
The direct imaging of potentially habitable Exoplanets is one prime science case for the next generation of high contrast imaging instruments on ground-based extremely large telesc…
High contrast imaging with Fizeau interferometry: The case of Altair
Eckhart Spalding, Katie M. Morzinski, Phil Hinz +5
The Large Binocular Telescope (LBT) has two 8.4-m primary mirrors that produce beams that can be combined coherently in a "Fizeau" interferometric mode. In principle, the Fizeau PS…