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    Direct Imaging of the HD 35841 Debris Disk: A Polarized Dust Ring from Gemini Planet Imager and an Outer Halo from /STIS

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    Esposito_2018_AJ_156_47.pdf
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    Author
    Esposito, Thomas M. cc
    Duchêne, Gaspard
    Kalas, Paul
    Rice, Malena
    Choquet, Élodie
    Ren, Bin
    Perrin, Marshall cc
    Chen, Christine H.
    Arriaga, Pauline cc
    Chiang, Eugene cc
    Nielsen, Eric L. cc
    Graham, James R.
    Wang, Jason J. cc
    Rosa, Robert J. De
    Follette, Katherine B. cc
    Ammons, S. Mark cc
    Ansdell, Megan
    Bailey, Vanessa P.
    Barman, Travis
    Bruzzone, Juan Sebastián
    Bulger, Joanna cc
    Chilcote, Jeffrey
    Cotten, Tara cc
    Doyon, Rene
    Fitzgerald, Michael P. cc
    Goodsell, Stephen J.
    Greenbaum, Alexandra Z. cc
    Hibon, Pascale cc
    Hung, Li-Wei cc
    Ingraham, Patrick cc
    Konopacky, Quinn
    Larkin, James E. cc
    Macintosh, Bruce cc
    Maire, Jérôme
    Marchis, Franck cc
    Marois, Christian cc
    Mazoyer, Johan
    Metchev, Stanimir
    Millar-Blanchaer, Maxwell A.
    Oppenheimer, Rebecca cc
    Palmer, David cc
    Patience, Jennifer
    Poyneer, Lisa
    Pueyo, Laurent
    Rajan, Abhijith
    Rameau, Julien cc
    Rantakyrö, Fredrik T. cc
    Ryan, Dominic
    Savransky, Dmitry cc
    Schneider, Adam C. cc
    Sivaramakrishnan, Anand cc
    Song, Inseok cc
    Soummer, Rémi
    Thomas, Sandrine
    Wallace, J. Kent cc
    Ward-Duong, Kimberly cc
    Wiktorowicz, Sloane cc
    Wolff, Schuyler
    Show allShow less
    Affiliation
    Univ Arizona, Lunar & Planetary Lab
    Issue Date
    2018-08
    Keywords
    circumstellar matter
    infrared
    planetary systems
    stars: individual (HD 35841)
    techniques: high angular resolution
    
    Metadata
    Show full item record
    Publisher
    IOP PUBLISHING LTD
    Citation
    Thomas M. Esposito et al 2018 AJ 156 47
    Journal
    ASTRONOMICAL JOURNAL
    Rights
    © 2018. 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 new high resolution imaging of a light-scattering dust ring and halo around the young star HD 35841. Using spectroscopic and polarimetric data from the Gemini Planet Imager in H-band (1.6 mu m), we detect the highly inclined (i = 85 degrees) ring of debris down to a projected separation of similar to 12 au (similar to 0.'' 12) for the first time. Optical imaging from HST/STIS shows a smooth dust halo extending outward from the ring to >140 au (>1.'' 1 4). We measure the ring's scattering phase function and polarization fraction over scattering angles of 22 degrees-125 degrees, showing a preference for forward scattering and a polarization fraction that peaks at similar to 30% near the ansae. Modeling of the scattered-light disk indicates that the ring spans radii of similar to 60-220 au, has a vertical thickness similar to that of other resolved dust rings, and contains grains as small as 1.5 mu m in diameter. These models also suggest the grains have a low porosity, are more likely to consist of carbon than astrosilicates, and contain significant water ice. The halo has a surface brightness profile consistent with that expected from grains pushed by radiation pressure from the main ring onto highly eccentric but still bound orbits. We also briefly investigate arrangements of a possible inner disk component implied by our spectral energy distribution models, and speculate about the limitations of Mie theory for doing detailed analyses of debris disk dust populations.
    ISSN
    1538-3881
    DOI
    10.3847/1538-3881/aacbc9
    Version
    Final published version
    Sponsors
    NASA [NAS 5-26555, NNX15AC89G, NNX15AD95G/NEXSS]; NSF [AST-1518332]; NASA's Science Mission Directorate; U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; [GO-13381]
    Additional Links
    http://stacks.iop.org/1538-3881/156/i=2/a=47?key=crossref.6c6f62a3ca823c022172c85148808d7b
    ae974a485f413a2113503eed53cd6c53
    10.3847/1538-3881/aacbc9
    Scopus Count
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    UA Faculty Publications

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