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Journal Articles The Astronomical Journal Year : 2017

Complex Spiral Structure in the HD 100546 Transitional Disk as Revealed by GPI and MagAO

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Katherine B. Follette
  • Function : Author
Julien Rameau
  • Function : Author
Ruobing Dong
Laurent Pueyo
  • Function : Author
Laird M. Close
  • Function : Author
Jeffrey Fung
  • Function : Author
Clare Leonard
  • Function : Author
Bruce Macintosh
Jared R. Males
  • Function : Author
Christian Marois
Maxwell A. Millar-Blanchaer
  • Function : Author
Katie M. Morzinski
  • Function : Author
Wyatt Mullen
  • Function : Author
Marshall Perrin
Elijah Spiro
  • Function : Author
Jason Wang
  • Function : Author
S. Mark Ammons
  • Function : Author
Vanessa P. Bailey
  • Function : Author
Travis Barman
  • Function : Author
Joanna Bulger
  • Function : Author
Jeffrey Chilcote
Tara Cotten
  • Function : Author
Robert J. de Rosa
  • Function : Author
Rene Doyon
  • Function : Author
Michael P. Fitzgerald
  • Function : Author
Stephen J. Goodsell
  • Function : Author
James R. Graham
  • Function : Author
Alexandra Z. Greenbaum
  • Function : Author
Pascale Hibon
  • Function : Author
Li-Wei Hung
  • Function : Author
Patrick Ingraham
  • Function : Author
Paul Kalas
Quinn Konopacky
  • Function : Author
James E. Larkin
  • Function : Author
Jérôme Maire
  • Function : Author
Franck Marchis
Stanimir Metchev
  • Function : Author
Eric L. Nielsen
  • Function : Author
Rebecca Oppenheimer
  • Function : Author
David Palmer
  • Function : Author
Jennifer Patience
  • Function : Author
Lisa Poyneer
  • Function : Author
Abhijith Rajan
  • Function : Author
Fredrik T. Rantakyrö
  • Function : Author
Dmitry Savransky
  • Function : Author
Adam C. Schneider
  • Function : Author
Anand Sivaramakrishnan
  • Function : Author
Inseok Song
  • Function : Author
Remi Soummer
  • Function : Author
Sandrine Thomas
  • Function : Author
David Vega
  • Function : Author
J. Kent Wallace
  • Function : Author
Kimberly Ward-Duong
  • Function : Author
Sloane Wiktorowicz
Schuyler Wolff

Abstract

We present optical and near-infrared high-contrast images of the transitional disk HD 100546 taken with the Magellan Adaptive Optics system (MagAO) and the Gemini Planet Imager (GPI). GPI data include both polarized intensity and total intensity imagery, and MagAO data are taken in Simultaneous Differential Imaging mode at Hα. The new GPI H-band total intensity data represent a significant enhancement in sensitivity and field rotation compared to previous data sets and enable a detailed exploration of substructure in the disk. The data are processed with a variety of differential imaging techniques (polarized, angular, reference, and simultaneous differential imaging) in an attempt to identify the disk structures that are most consistent across wavelengths, processing techniques, and algorithmic parameters. The inner disk cavity at 15 au is clearly resolved in multiple data sets, as are a variety of spiral features. While the cavity and spiral structures are identified at levels significantly distinct from the neighboring regions of the disk under several algorithms and with a range of algorithmic parameters, emission at the location of HD 100546 “c” varies from point-like under aggressive algorithmic parameters to a smooth continuous structure with conservative parameters, and is consistent with disk emission. Features identified in the HD 100546 disk bear qualitative similarity to computational models of a moderately inclined two-armed spiral disk, where projection effects and wrapping of the spiral arms around the star result in a number of truncated spiral features in forward-modeled images.

Dates and versions

insu-03692509 , version 1 (09-06-2022)

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Katherine B. Follette, Julien Rameau, Ruobing Dong, Laurent Pueyo, Laird M. Close, et al.. Complex Spiral Structure in the HD 100546 Transitional Disk as Revealed by GPI and MagAO. The Astronomical Journal, 2017, 153, ⟨10.3847/1538-3881/aa6d85⟩. ⟨insu-03692509⟩
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