Complex Spiral Structure in the HD 100546 Transitional Disk as Revealed by GPI and MagAO
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Author
Follette, Katherine B.
Rameau, Julien

Dong, Ruobing

Pueyo, Laurent
Close, Laird M.

Duchêne, Gaspard

Fung, Jeffrey

Leonard, Clare
Macintosh, Bruce

Males, Jared R.

Marois, Christian

Millar-Blanchaer, Maxwell A.

Morzinski, Katie M.

Mullen, Wyatt
Perrin, Marshall

Spiro, Elijah
Wang, Jason J.

Ammons, S. Mark

Bailey, Vanessa P.
Barman, Travis S.

Bulger, Joanna
Chilcote, Jeffrey

Cotten, Tara

De Rosa, Robert J.

Doyon, Rene
Fitzgerald, Michael P.

Goodsell, Stephen J.

Graham, James R.
Greenbaum, Alexandra Z.

Hibon, Pascale

Hung, Li-Wei

Ingraham, Patrick
Kalas, Paul
Konopacky, Quinn

Larkin, James E.

Maire, Jerome
Marchis, Franck

Metchev, Stanimir A.

Nielsen, Eric L.

Oppenheimer, Rebecca

Palmer, David
Patience, Jenny

Poyneer, Lisa
Rajan, Abhijith

Rantakyro, Fredrik T.
Savransky, Dmitry

Schneider, Adam C.
Sivaramakrishnan, Anand

Song, Inseok

Soummer, Remi

Thomas, Sandrine
Vega, David
Wallace, J. Kent

Ward-Duong, Kimberly

Wiktorowicz, Sloane

Wolff, Schuyler

Affiliation
Univ Arizona, Steward ObservIssue Date
2017-05-19Keywords
instrumentation: adaptive opticsplanet-disk interaction
protoplanetary disk
stars: individual (HD 100546)
Metadata
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IOP PUBLISHING LTDCitation
Complex Spiral Structure in the HD 100546 Transitional Disk as Revealed by GPI and MagAO 2017, 153 (6):264 The Astronomical JournalJournal
The Astronomical JournalRights
© 2017. The American Astronomical Society. All rights reserved.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.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 Ha. 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.ISSN
1538-3881Version
Final published versionSponsors
NSF [AST-1411868]; US Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; NASA Exoplanets Research Program (XRP) [NNX16AD44G]; NASA [NNX15AD95G, NAS5-26555]; NASA through Hubble Fellowship - Space Telescope Science Institute [51378.01-A]Additional Links
http://stacks.iop.org/1538-3881/153/i=6/a=264?key=crossref.c8a6895f95f260c72414680602a4d882ae974a485f413a2113503eed53cd6c53
10.3847/1538-3881/aa6d85