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Direct Spectrum of the Benchmark T dwarf HD 19467 B
Justin R. Crepp, Emily L. Rice, AAron Veicht +18
HD 19467 B is presently the only directly imaged T dwarf companion known to induce a measurable Doppler acceleration around a solar type star. We present spectroscopy measurements…
Apodized Pupil Lyot Coronagraphs for Arbitrary Apertures. IV. Reduced Inner Working Angle and Increased Robustness to Low-Order Aberrations
Mamadou N'Diaye, Laurent Pueyo, Rémi Soummer
The Apodized Pupil Lyot Coronagraph (APLC) is a diffraction suppression system installed in the recently deployed instruments Palomar/P1640, Gemini/GPI, and VLT/SPHERE to allow dir…
An image-plane algorithm for JWST's non-redundant aperture mask data
Alexandra Z. Greenbaum, Laurent Pueyo, Anand Sivaramakrishnan +1
The high angular resolution technique of non-redundant masking (NRM) or aperture masking interferometry (AMI) has yielded images of faint protoplanetary companions of nearby stars…
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…
Performance of the VLT Planet Finder SPHERE I. Photometry and astrometry precision with IRDIS and IFS in laboratory
A. Zurlo, A. Vigan, D. Mesa +26
The new planet finder for the Very Large Telescope (VLT), the Spectro-Polarimetric High-contrast Exoplanet REsearch (SPHERE), just had its first light in Paranal. A dedicated instr…
Gemini Planet Imager Spectroscopy of the HR 8799 planets c and d
Patrick Ingraham, Mark S. Marley, Didier Saumon +43
During the first-light run of the Gemini Planet Imager (GPI) we obtained K-band spectra of exoplanets HR 8799 c and d. Analysis of the spectra indicates that planet d may be warmer…
S4: A Spatial-Spectral model for Speckle Suppression
Rob Fergus, David W. Hogg, Rebecca Oppenheimer +2
High dynamic-range imagers aim to block out or null light from a very bright primary star to make it possible to detect and measure far fainter companions; in real systems a small…
Discovery of a Companion Candidate in the HD169142 Transition Disk and the Possibility of Multiple Planet Formation
Maddalena Reggiani, Sascha P. Quanz, Michael R. Meyer +14
We present L' and J-band high-contrast observations of HD169142, obtained with the VLT/NACO AGPM vector vortex coronagraph and the Gemini Planet Imager, respectively. A source loca…
The First H-band Spectrum of the Massive Gas Giant Planet beta Pictoris b with the Gemini Planet Imager
Jeffrey Chilcote, Travis Barman, Michael P. Fitzgerald +43
Using the recently installed Gemini Planet Imager (GPI), we have taken the first H-band spectrum of the planetary companion to the nearby young star beta Pictoris. GPI is designed…
Polarimetry with the Gemini Planet Imager: Methods, Performance at First Light, and the Circumstellar Ring around HR 4796A
Marshall D. Perrin, Gaspard Duchene, Max Millar-Blanchaer +41
We present the first results from the polarimetry mode of the Gemini Planet Imager (GPI), which uses a new integral field polarimetry architecture to provide high contrast linear p…
Gemini Planet imager Observational Calibrations X: Non-Redundant Masking on GPI
Alexandra Z. Greenbaum, Anthony Cheetham, Anand Sivaramakrishnan +18
The Gemini Planet Imager (GPI) Extreme Adaptive Optics Coronograph contains an interferometric mode: a 10-hole non-redundant mask (NRM) in its pupil wheel. GPI operates at $Y, J, H…
Gemini Planet Imager Observational Calibrations VIII: Characterization and Role of Satellite Spots
Jason J. Wang, Abhijith Rajan, James R. Graham +20
The Gemini Planet Imager (GPI) combines extreme adaptive optics, an integral field spectrograph, and a high performance coronagraph to directly image extrasolar planets in the near…
Gemini Planet Imager Observational Calibrations VI: Photometric and Spectroscopic Calibration for the Integral Field Spectrograph
Jérôme Maire, Patrick J. Ingraham, Robert J. De Rosa +20
The Gemini Planet Imager (GPI) is a new facility instrument for the Gemini Observatory designed to provide direct detection and characterization of planets and debris disks around…
Gemini Planet Imager Observational Calibrations V: Astrometry and Distortion
Quinn M. Konopacky, Sandrine J. Thomas, Bruce A. Macintosh +24
We present the results of both laboratory and on sky astrometric characterization of the Gemini Planet Imager (GPI). This characterization includes measurement of the pixel scale o…
Gemini Planet Imager Observational Calibrations I: Overview of the GPI Data Reduction Pipeline
Marshall D. Perrin, Jérôme Maire, Patrick Ingraham +35
The Gemini Planet Imager (GPI) has as its science instrument an infrared integral field spectrograph/polarimeter (IFS). Integral field spectrographs are scientificially powerful bu…
Fundamental limitations of high contrast imaging set by small sample statistics
Dimitri Mawet, Julien Milli, Zahed Wahhaj +9
In this paper, we review the impact of small sample statistics on detection thresholds and corresponding confidence levels (CLs) in high contrast imaging at small angles. When look…
High-contrast imager for Complex Aperture Telescopes (HiCAT): 1. Testbed design
Mamadou N'Diaye, Elodie Choquet, Laurent Pueyo +11
Searching for nearby habitable worlds with direct imaging and spectroscopy will require a telescope large enough to provide angular resolution and sensitivity to planets around a s…
Archival Legacy Investigations of Circumstellar Environments: Overview and First Results
Élodie Choquet, Laurent Pueyo, J. Brendan Hagan +12
We are currently conducting a comprehensive and consistent re-processing of archival HST-NICMOS coronagraphic surveys using advanced PSF subtraction methods, entitled the Archival…
James Webb Space Telescope Optical Simulation Testbed I: Overview and First Results
Marshall D. Perrin, Rémi Soummer, Élodie Choquet +13
The James Webb Space Telescope (JWST) Optical Simulation Testbed (JOST) is a tabletop workbench to study aspects of wavefront sensing and control for a segmented space telescope, i…
New constraints on the dust surrounding HR 4796A
Julien Milli, Dimitri Mawet, Christophe Pinte +7
HR 4796A is surrounded by a well-structured and very bright circumstellar disc shaped like an annulus with many interesting features: very sharp inner and outer edges, brightness a…
Five Debris Disks Newly Revealed in Scattered Light from the HST NICMOS Archive
Rémi Soummer, Marshall D. Perrin, Laurent Pueyo +12
We have spatially resolved five debris disks (HD 30447, HD 35841, HD 141943, HD 191089, and HD 202917) for the first time in near-infrared scattered light by reanalyzing archival H…
Apodized phase mask coronagraphs for arbitrary apertures. II. Comprehensive review of solutions for the vortex coronagraph
Alexis Carlotti, Laurent Pueyo, Dimitri Mawet
With a clear circular aperture, the vortex coronagraph perfectly cancels an on-axis point source and offers a 0.9 or 1.75 lambda/D inner working angle for topological charge 2 or 4…
The Gemini Planet Imager: First Light
Bruce Macintosh, James R. Graham, Patrick Ingraham +44
The Gemini Planet Imager (GPI) is a dedicated facility for directly imaging and spectroscopically characterizing extrasolar planets. It combines a very high-order adaptive optics s…