activity
20032026
most citedFirst Light LBT AO Images of HR 8799 bcde at 1.65 and 3.3 Microns: New Discrepancies between Young Planets and Old Brown Dwarfs

153 citations · 955 across the 34 of their papers we have counts for

collaborators

34 papers

astro-ph.EP2026★ 1 cited

Direct Imaging Discovery of Giant Exoplanet Pictoris d: A Decade-Long Game of Hide-and-Seek

Ben J. Sutlieff, Markus J. Bonse, Valentin Christiaens +94

We report the direct imaging discovery of a third exoplanet in the Pictoris system. We detect Pictoris d ( Pic d) in non-coronagraphic observations obtained with VLT/ERI…

astro-ph.GA2025★ 1 cited

The gas streamer G1-2-3 in the Galactic Center

S. Gillessen, F. Eisenhauer, J. Cuadra +61

The black hole in the Galactic Center, Sgr A*, is prototypical for ultra-low-fed galactic nuclei. The discovery of a hand-full of gas clumps in the realm of a few Earth masses in i…

astro-ph.EP2025★ 5 cited

High-contrast spectroscopy with the new VLT/ERIS instrument: Molecular maps and radial velocity of the gas giant AF Lep b

Jean Hayoz, Markus Johannes Bonse, Felix Dannert +66

The Enhanced Resolution Imager and Spectrograph (ERIS) is the new Adaptive-Optics (AO) assisted Infrared instrument at the Very Large Telescope (VLT). Its refurbished Integral Fiel…

astro-ph.GA2023★ 1 cited

GMP-selected dual and lensed AGNs: selection function and classification based on near-IR colors and resolved spectra from VLT/ERIS, KECK/OSIRIS, and LBT/LUCI

F. Mannucci, M. Scialpi, A. Ciurlo +44

The Gaia-Multi-Peak (GMP) technique can be used to identify large numbers of dual or lensed AGN candidates at sub-arcsec separation, allowing us to study both multiple SMBHs in the…

astro-ph.IM2023★ 42 cited

The Enhanced Resolution Imager and Spectrograph for the VLT

R. Davies, O. Absil, G. Agapito +81

ERIS, the Enhanced Resolution Imager and Spectrograph, is an instrument that both extends and enhances the fundamental diffraction limited imaging and spectroscopy capability for t…

astro-ph.IM2023★ 1 cited

Optimal filtering techniques for the adaptive optics system of the LBT

G. Agapito, F. Quirós-Pacheco, P. Tesi +2

In this paper we will discuss the application of optimal filtering techniques for the adaptive optics system of the LBT telescope. We have studied the application of both Kalman an…

astro-ph.IM2023★ 2 cited

First on-sky results of ERIS at VLT

Kateryna Kravchenko, Yigit Dallilar, Olivier Absil +46

ERIS (Enhanced Resolution Imager and Spectrograph) is a new adaptive optics instrument installed at the Cassegrain focus of the VLT-UT4 telescope at the Paranal Observatory in Chil…

astro-ph.IM2022

Optical calibration of large format adaptive mirrors

Runa Briguglio, Marco Xompero, Armando Riccardi

Adaptive (or deformable) mirrors are widely used as wavefront correctors in adaptive optics systems. The optical calibration of an adaptive mirror is a fundamental step during its…

astro-ph.IM2022

The simulator of the VLT Deformable Secondary Mirror: a test tool for adaptive optics instruments for the Yepun-UT4 telescope

Runa Briguglio, Armando Riccardi, Luca Carbonaro +3

The Deformable Mirror Simulator (DMS) is an optical device reproducing the F/13 beam from the adaptive secondary mirror of the Very Large Telescope UT4. The system has been designe…

astro-ph.IM2021

Bringing SOUL on sky

Enrico Pinna, Fabio Rossi, Alfio Puglisi +20

The SOUL project is upgrading the 4 SCAO systems of LBT, pushing the current guide star limits of about 2 magnitudes fainter thanks to Electron Multiplied CCD detector. This improv…

astro-ph.IM2021

Slaving and disabling actuators with voice-coil adaptive mirrors

Armando Riccardi

Adaptive mirrors based on voice-coil technology have force actuators with an internal metrology to close a local loop for controlling its shape in position. When actuators are requ…

astro-ph.IM2018★ 5 cited

ERIS: revitalising an adaptive optics instrument for the VLT

Richard Davies, Simone Esposito, Hans Martin Schmid +63

ERIS is an instrument that will both extend and enhance the fundamental diffraction limited imaging and spectroscopy capability for the VLT. It will replace two instruments that ar…

astro-ph.IM2018★ 2 cited

Status of MagAO and review of astronomical science with visible light adaptive optics

Laird M. Close, Jared R. Males, Katie M. Morzinski +10

We review astronomical results in the visible (lambda <1 micron) with adaptive optics and note the status the MagAO system and the recent upgrade to visible camera's Simultaneous/S…

astro-ph.IM2016★ 14 cited

MagAO: Status and Science

Katie M. Morzinski, Laird M. Close, Jared R. Males +10

"MagAO" is the adaptive optics instrument at the Magellan Clay telescope at Las Campanas Observatory, Chile. MagAO has a 585-actuator adaptive secondary mirror and 1000-Hz pyramid…

astro-ph.IM2016★ 12 cited

The ERIS Adaptive Optics System

A. Riccardi, S. Esposito, G. Agapito +19

ERIS is the new AO instrument for VLT-UT4 led by a Consortium of Max-Planck Institut fuer Extraterrestrische Physik, UK-ATC, ETH-Zurich, ESO and INAF. The ERIS AO system provides N…

astro-ph.EP2015★ 95 cited

Magellan Adaptive Optics first-light observations of the exoplanet beta Pic b. II. 3-5 micron direct imaging with MagAO+Clio, and the empirical bolometric luminosity of a self-luminous giant planet

Katie M. Morzinski, Jared R. Males, Andy J. Skemer +14

Young giant exoplanets are a unique laboratory for understanding cool, low-gravity atmospheres. A quintessential example is the massive extrasolar planet Pic b, which is 9 AU f…

astro-ph.SR2015★ 27 cited

The absolute age of the globular cluster M15 using near-infrared adaptive optics images from PISCES/LBT

M. Monelli, V. Testa, G. Bono +26

We present deep near-infrared (NIR) J, Ks photometry of the old, metal-poor Galactic globular cluster M\,15 obtained with images collected with the LUCI1 and PISCES cameras availab…

astro-ph.SR2014★ 52 cited

On the Morphology and Chemical Composition of the HR 4796A Debris Disk

Timothy J. Rodigas, Christopher C. Stark, Alycia Weinberger +17

[abridged] We present resolved images of the HR 4796A debris disk using the Magellan adaptive optics system paired with Clio-2 and VisAO. We detect the disk at 0.77 \microns, 0.91…

astro-ph.IM2014★ 10 cited

Direct imaging of exoplanets in the habitable zone with adaptive optics

Jared R. Males, Laird M. Close, Olivier Guyon +16

One of the primary goals of exoplanet science is to find and characterize habitable planets, and direct imaging will play a key role in this effort. Though imaging a true Earth ana…

astro-ph.IM2014★ 49 cited

MagAO: Status and on-sky performance of the Magellan adaptive optics system

Katie M. Morzinski, Laird M. Close, Jared R. Males +19

MagAO is the new adaptive optics system with visible-light and infrared science cameras, located on the 6.5-m Magellan "Clay" telescope at Las Campanas Observatory, Chile. The inst…

astro-ph.IM2014★ 15 cited

Into the Blue: AO Science with MagAO in the Visible

Laird M. Close, Jared R. Males, Katherine B. Follette +11

We review astronomical results in the visible (λ<1μm) with adaptive optics. Other than a brief period in the early 1990s, there has been little astronomical science done in the vis…

astro-ph.EP2014★ 71 cited

Magellan Adaptive Optics first-light observations of the exoplanet Pic b. I. Direct imaging in the far-red optical with MagAO+VisAO and in the near-IR with NICI

Jared R. Males, Laird M. Close, Katie M. Morzinski +20

We present the first ground-based CCD (m) image of an extrasolar planet. Using MagAO's VisAO camera we detected the extrasolar giant planet (EGP) Pictoris b in -short…

astro-ph.EP2013★ 13 cited

The First Circumstellar Disk Imaged in Silhouette with Adaptive Optics: MagAO Imaging of Orion 218-354

Katherine B. Follette, Laird M. Close, Jared R. Males +11

We present high resolution adaptive optics (AO) corrected images of the silhouette disk Orion 218-354 taken with Magellan AO (MagAO) and its visible light camera, VisAO, in simulta…

astro-ph.SR2013★ 94 cited

Diffraction-limited Visible Light Images of Orion Trapezium Cluster With the Magellan Adaptive Secondary AO System (MagAO)

L. M. Close, J. R. Males, K. Morzinski +13

We utilized the new high-order (250-378 mode) Magellan Adaptive Optics system (MagAO) to obtain very high spatial resolution observations in "visible light" with MagAO's VisAO CCD…