38 citations · 269 across the 14 of their papers we have counts for
14 papers
RISTRETTO: high-resolution spectroscopy at the diffraction limit of the VLT
Christophe Lovis, Nicolas Blind, Bruno Chazelas +14
RISTRETTO is a visible high-resolution spectrograph fed by an extreme adaptive optics (XAO) system, to be proposed as a visitor instrument on ESO VLT. The main science goal of RIST…
SLM-based Active Focal-Plane Coronagraphy: Status and future on-sky prospects
Jonas G. Kühn, Laurent Jolissaint, Audrey Bouxin +1
We recently started to investigate how liquid-crystal on silicon (LCOS) spatial light modulator (SLM) would perform as programmable focal-plane phase mask (FPM) coronagraphs. Such…
SPHERE+: Imaging young Jupiters down to the snowline
A. Boccaletti, G. Chauvin, D. Mouillet +130
SPHERE (Beuzit et al,. 2019) has now been in operation at the VLT for more than 5 years, demonstrating a high level of performance. SPHERE has produced outstanding results using a…
Nulling at short wavelengths: theoretical performance constraints and a demonstration of faint companion detection inside the diffraction limit with a rotating-baseline interferometer
Eugene Serabyn, Bertrand Mennesson, Stefan Martin +2
The Palomar Fiber Nuller (PFN) is a rotating-baseline nulling interferometer that enables high-accuracy near-infrared (NIR) nulling observations with full azimuth coverage. To achi…
Review of high-contrast imaging systems for current and future ground-based and space-based telescopes III. Technology opportunities and pathways
Frans Snik, Olivier Absil, Pierre Baudoz +30
The Optimal Optical CoronagraphWorkshop at the Lorentz Center in September 2017 in Leiden, the Netherlands gathered a diverse group of 25 researchers working on exoplanet instrumen…
Laboratory and On-Sky Validation of the Shaped Pupil Coronagraph's Sensitivity to Low-Order Aberrations With Active Wavefront Control
Thayne Currie, N. Jeremy Kasdin, Tyler Groff +10
We present early laboratory simulations and extensive on-sky tests validating of the performance of a shaped pupil coronagraph (SPC) behind an extreme-AO corrected beam of the Suba…
An H-band Vector Vortex Coronagraph for the Subaru Coronagraphic Extreme-Adaptive Optics System
Jonas Kühn, Eugene Serabyn, Julien Lozi +11
The vector vortex is a coronagraphic imaging mode of the recently commissioned Subaru Coronagraphic Extreme-Adaptive Optics (SCExAO) platform on the 8-m Subaru Telescope. This mult…
Subaru/SCExAO First-Light Direct Imaging of a Young Debris Disk around HD 36546
Thayne Currie, Olivier Guyon, Motohide Tamura +24
We present -band scattered light imaging of a bright debris disk around the A0 star HD 36546 obtained from the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) system with…
Stellar Double Coronagraph: a multistage coronagraphic platform at Palomar observatory
Michael Bottom, J. Chris Shelton, James K. Wallace +6
We present a new instrument, the "Stellar Double Coronagraph" (SDC), a flexible coronagraphic platform. Designed for Palomar Observatory's 200" Hale telescope, its two focal and pu…
Discovery of a low-mass companion around HR3549
Dimitri Mawet, Trevor David, Michael Bottom +7
We report the discovery of a low-mass companion to HR3549, an A0V star surrounded by a debris disk with a warm excess detected by WISE at 22 m ( significance). We imaged HR…
Resolving the delta Andromedae spectroscopic binary with direct imaging
Michael Bottom, Jonas Kuhn, Bertrand Mennesson +4
We present a direct image of the innermost companion to the red giant delta Andromedae using the Stellar Double Coronagraph at the Palomar Observatory. We use a Markov chain Monte…
On-sky demonstration of low-order wavefront sensing and control with focal plane phase mask coronagraphs
Garima Singh, Julien Lozi, Olivier Guyon +6
The ability to characterize exoplanets by spectroscopy of their atmospheres requires direct imaging techniques to isolate planet signal from the bright stellar glare. One of the li…
L'-band AGPM vector vortex coronagraph's first light on LBTI/LMIRCam
D. Defrère, O. Absil, P. Hinz +20
We present the first observations obtained with the L'-band AGPM vortex coronagraph recently installed on LBTI/LMIRCam. The AGPM (Annular Groove Phase Mask) is a vector vortex coro…
Lyot-based Low Order Wavefront Sensor: Implementation on the Subaru Coronagraphic Extreme Adaptive Optics System and its Laboratory Performance
Garima Singh, Olivier Guyon, Pierre Baudoz +5
High throughput, low inner working angle (IWA) phase masks coronagraphs are essential to directly image and characterize (via spectroscopy) earth-like planets. However, the perform…