- Wolff, Schuyler G;
- Perrin, Marshall;
- Millar-Blanchaer, Maxwell A;
- Nielsen, Eric L;
- Wang, Jason;
- Cardwell, Andrew;
- Chilcote, Jeffrey;
- Dong, Ruobing;
- Draper, Zachary H;
- Duchêne, Gaspard;
- Fitzgerald, Michael P;
- Goodsell, Stephen J;
- Grady, Carol A;
- Graham, James R;
- Greenbaum, Alexandra Z;
- Hartung, Markus;
- Hibon, Pascale;
- Hines, Dean C;
- Hung, Li-Wei;
- Kalas, Paul;
- Macintosh, Bruce;
- Marchis, Franck;
- Marois, Christian;
- Pueyo, Laurent;
- Rantakyrö, Fredrik T;
- Schneider, Glenn;
- Sivaramakrishnan, Anand;
- Wiktorowicz, Sloane J
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 clear detection of the disk in to the 0.″12 inner working angle (IWA) in the H band, almost three times closer to the star than the previous Hubble Space Telescope (HST) observations with NICMOS and STIS (0.″35 effective IWA). The centro-symmetric polarization vectors confirm that the bright inner disk detection is due to circumstellar scattered light. A more diffuse disk extends to a bright outer ring centered at 80 AU. We discuss several physical mechanisms capable of producing the observed ring + gap structure. GPI data confirm enhanced scattering on the east side of the disk that is inferred to be nearer to us. We also detect a lateral asymmetry in the south possibly due to shadowing from material within the IWA. This likely corresponds to a temporally variable azimuthal asymmetry observed in HST/STIS coronagraphic imaging.