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First scattered-light images of the gas-rich debris disk around 49 Ceti
É. Choquet, J. Milli, Z. Wahhaj +31
We present the first scattered-light images of the debris disk around 49 ceti, a ~40 Myr A1 main sequence star at 59 pc, famous for hosting two massive dust belts as well as large…
Dynamical Mass Measurement of the Young Spectroscopic Binary V343 Normae AaAb Resolved With the Gemini Planet Imager
Eric L. Nielsen, Robert J. De Rosa, Jason Wang +44
We present new spatially resolved astrometry and photometry from the Gemini Planet Imager of the inner binary of the young multiple star system V343 Normae, which is a member of th…
Gemini Planet Imager Observational Calibration XIII: Wavelength Calibration Improvements, Stability, and Nonlinearity
Schuyler G. Wolff, Kimberly Ward-Duong, Joe Zalesky +3
We present improvements to the wavelength calibration for the lenslet-based Integral Field Spectrograph (IFS), that serves as the science instrument for the Gemini Planet Imager (G…
Imaging an 80 AU Radius Dust Ring Around the F5V Star HD 157587
Maxwell A. Millar-Blanchaer, Jason Wang, Paul Kalas +55
We present -band near-infrared polarimetric imaging observations of the F5V star HD~157587 obtained with the Gemini Planet Imager (GPI) that reveal the debris disk as a bright r…
Discovery of a Substellar Companion to the Nearby Debris Disk Host HR 2562
Quinn M. Konopacky, Julien Rameau, Gaspard Duchene +54
We present the discovery of a brown dwarf companion to the debris disk host star HR 2562. This object, discovered with the Gemini Planet Imager (GPI), has a projected separation of…
The Orbit and Transit Prospects for Pictoris b constrained with One Milliarcsecond Astrometry
Jason J. Wang, James R. Graham, Laurent Pueyo +51
A principal scientific goal of the Gemini Planet Imager (GPI) is obtaining milliarcsecond astrometry to constrain exoplanet orbits. However, astrometry of directly imaged exoplanet…
The Peculiar Debris Disk of HD 111520 as Resolved by the Gemini Planet Imager
Zachary H. Draper, Gaspard Duchêne, Maxwell A. Millar-Blanchaer +33
Using the Gemini Planet Imager (GPI), we have resolved the circumstellar debris disk around HD 111520 at a projected range of ~30-100 AU in both total and polarized -band intens…
Bringing "The Moth" to Light: A Planet-Sculpting Scenario for the HD 61005 Debris Disk
Thomas M. Esposito, Michael P. Fitzgerald, James R. Graham +20
The HD 61005 debris disk ("The Moth") stands out from the growing collection of spatially resolved circumstellar disks by virtue of its unusual swept-back morphology, brightness as…
Constraints on the architecture of the HD 95086 planetary system with the Gemini Planet Imager
Julien Rameau, Eric L. Nielsen, Robert J. De Rosa +31
We present astrometric monitoring of the young exoplanet HD 95086 b obtained with the Gemini Planet Imager between 2013 and 2016. A small but significant position angle change is d…
The PDS 66 Circumstellar Disk as seen in Polarized Light with the Gemini Planet Imager
Schuyler G. Wolff, Marshall Perrin, Maxwell A. Millar-Blanchaer +25
We present H and K band imaging polarimetry for the PDS 66 circumstellar disk obtained during the commissioning of the Gemini Planet Imager (GPI). Polarization images reveal a clea…
A symmetric inner cavity in the HD 141569A transitional disk
J. Mazoyer, A. Boccaletti, E. Choquet +6
Some circumstellar disks, called transitional or hybrid disks, present characteristics of both protoplanetary disks (significant amount of gas) and debris disks (evolved structures…