Schuyler G. Wolff
The PDS 66 Circumstellar Disk as Seen in Polarized Light with the Gemini Planet Imager
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.
Authors
Marshall Perrin
Maxwell A. Millar-Blanchaer
Eric L. Nielsen
Jason Wang
Andrew Cardwell
Jeffrey Chilcote
Ruobing Dong
Zachary H. Draper
Gaspard Duchêne
Michael P. Fitzgerald
Dr Stephen Goodsell stephen.goodsell@durham.ac.uk
Programme Manager
Carol A. Grady
James R. Graham
Alexandra Z. Greenbaum
Markus Hartung
Pascale Hibon
Dean C. Hines
Li-Wei Hung
Paul Kalas
Bruce Macintosh
Franck Marchis
Christian Marois
Laurent Pueyo
Fredrik T. Rantakyrö
Glenn Schneider
Anand Sivaramakrishnan
Sloane J. Wiktorowicz
Abstract
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 0farcs12 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 (0farcs35 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.
Citation
Wolff, S. G., Perrin, M., Millar-Blanchaer, M. A., Nielsen, E. L., Wang, J., Cardwell, A., …Wiktorowicz, S. J. (2016). The PDS 66 Circumstellar Disk as Seen in Polarized Light with the Gemini Planet Imager. Astrophysical Journal Letters, 818(1), Article L15. https://doi.org/10.3847/2041-8205/818/1/l15
Journal Article Type | Article |
---|---|
Acceptance Date | Jan 19, 2016 |
Online Publication Date | Feb 8, 2016 |
Publication Date | Feb 8, 2016 |
Deposit Date | Dec 6, 2016 |
Publicly Available Date | Jan 26, 2017 |
Journal | Astrophysical Journal Letters |
Print ISSN | 2041-8205 |
Electronic ISSN | 2041-8213 |
Publisher | American Astronomical Society |
Peer Reviewed | Peer Reviewed |
Volume | 818 |
Issue | 1 |
Article Number | L15 |
DOI | https://doi.org/10.3847/2041-8205/818/1/l15 |
Public URL | https://durham-repository.worktribe.com/output/1398282 |
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Copyright Statement
© 2016. The American Astronomical Society. All rights reserved.
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