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

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    Follette_2017_AJ_153_264.pdf
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    Author
    Follette, Katherine B. cc
    Rameau, Julien cc
    Dong, Ruobing cc
    Pueyo, Laurent
    Close, Laird M. cc
    Duchêne, Gaspard cc
    Fung, Jeffrey cc
    Leonard, Clare
    Macintosh, Bruce cc
    Males, Jared R. cc
    Marois, Christian cc
    Millar-Blanchaer, Maxwell A. cc
    Morzinski, Katie M. cc
    Mullen, Wyatt
    Perrin, Marshall cc
    Spiro, Elijah
    Wang, Jason J. cc
    Ammons, S. Mark cc
    Bailey, Vanessa P.
    Barman, Travis S. cc
    Bulger, Joanna
    Chilcote, Jeffrey cc
    Cotten, Tara cc
    De Rosa, Robert J. cc
    Doyon, Rene
    Fitzgerald, Michael P. cc
    Goodsell, Stephen J. cc
    Graham, James R.
    Greenbaum, Alexandra Z. cc
    Hibon, Pascale cc
    Hung, Li-Wei cc
    Ingraham, Patrick
    Kalas, Paul
    Konopacky, Quinn cc
    Larkin, James E. cc
    Maire, Jerome
    Marchis, Franck cc
    Metchev, Stanimir A. cc
    Nielsen, Eric L. cc
    Oppenheimer, Rebecca cc
    Palmer, David
    Patience, Jenny cc
    Poyneer, Lisa
    Rajan, Abhijith cc
    Rantakyro, Fredrik T.
    Savransky, Dmitry cc
    Schneider, Adam C.
    Sivaramakrishnan, Anand cc
    Song, Inseok cc
    Soummer, Remi cc
    Thomas, Sandrine
    Vega, David
    Wallace, J. Kent cc
    Ward-Duong, Kimberly cc
    Wiktorowicz, Sloane cc
    Wolff, Schuyler cc
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    Affiliation
    Univ Arizona, Steward Observ
    Issue Date
    2017-05-19
    Keywords
    instrumentation: adaptive optics
    planet-disk interaction
    protoplanetary disk
    stars: individual (HD 100546)
    
    Metadata
    Show full item record
    Publisher
    IOP PUBLISHING LTD
    Citation
    Complex Spiral Structure in the HD 100546 Transitional Disk as Revealed by GPI and MagAO 2017, 153 (6):264 The Astronomical Journal
    Journal
    The Astronomical Journal
    Rights
    © 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
    1538-3881
    DOI
    10.3847/1538-3881/aa6d85
    Version
    Final published version
    Sponsors
    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.c8a6895f95f260c72414680602a4d882
    ae974a485f413a2113503eed53cd6c53
    10.3847/1538-3881/aa6d85
    Scopus Count
    Collections
    UA Faculty Publications

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