The PDS 66 Circumstellar Disk as Seen in Polarized Light with the Gemini Planet Imager - Archive ouverte HAL Access content directly
Journal Articles The Astrophysical Journal Letters Year : 2016

The PDS 66 Circumstellar Disk as Seen in Polarized Light with the Gemini Planet Imager

, , , , , , , , , (1) , , , , , , , , , , , , , , , , , ,
1
Schuyler G. Wolff
  • Function : Author
Marshall Perrin
Maxwell A. Millar-Blanchaer
  • Function : Author
Eric L. Nielsen
  • Function : Author
Jason Wang
  • Function : Author
Andrew Cardwell
  • Function : Author
Jeffrey Chilcote
Ruobing Dong
Zachary H. Draper
  • Function : Author
Michael P. Fitzgerald
  • Function : Author
Stephen J. Goodsell
  • Function : Author
Carol A. Grady
  • Function : Author
James R. Graham
  • Function : Author
Alexandra Z. Greenbaum
  • Function : Author
Markus Hartung
  • Function : Author
Pascale Hibon
  • Function : Author
Dean C. Hines
  • Function : Author
Li-Wei Hung
  • Function : Author
Paul Kalas
Bruce Macintosh
Franck Marchis
Christian Marois
Laurent Pueyo
  • Function : Author
Fredrik T. Rantakyrö
  • Function : Author
Glenn Schneider
  • Function : Author
Anand Sivaramakrishnan
  • Function : Author
Sloane J. Wiktorowicz
  • Function : Author

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 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.

Dates and versions

insu-03691568 , version 1 (09-06-2022)

Identifiers

Cite

Schuyler G. Wolff, Marshall Perrin, Maxwell A. Millar-Blanchaer, Eric L. Nielsen, Jason Wang, et al.. The PDS 66 Circumstellar Disk as Seen in Polarized Light with the Gemini Planet Imager. The Astrophysical Journal Letters, 2016, 818, ⟨10.3847/2041-8205/818/1/L15⟩. ⟨insu-03691568⟩
0 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More