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    First Millimeter Detection of the Disk around a Young, Isolated, Planetary-mass Object

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    Bayo_2017_ApJL_841_L11.pdf
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    Author
    Bayo, Amelia cc
    Joergens, Viki
    Liu, Yao
    Brauer, Robert
    Olofsson, J. cc
    Arancibia, Javier
    Pinilla, Paola
    Wolf, Sebastian
    Ruge, Jan Philipp
    Henning, Thomas cc
    Natta, Antonella
    Johnston, Katharine G. cc
    Bonnefoy, Mickael
    Beuther, Henrik cc
    Chauvin, Gael
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    Affiliation
    Univ Arizona, Dept Astron, Steward Observ
    Issue Date
    2017-05-18
    Keywords
    brown dwarfs
    stars: formation
    stars: low-mass
    stars: pre-main sequence
    
    Metadata
    Show full item record
    Publisher
    IOP PUBLISHING LTD
    Citation
    First Millimeter Detection of the Disk around a Young, Isolated, Planetary-mass Object 2017, 841 (1):L11 The Astrophysical Journal
    Journal
    The Astrophysical Journal Letters
    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
    OTS44 is one of only four free-floating planets known to have a disk. We have previously shown that it is the coolest and least massive known free-floating planet (similar to 12 M-Jup) with a substantial disk that is actively accreting. We have obtained Band 6 (233 GHz) ALMA continuum data of this very young disk-bearing object. The data show a clear unresolved detection of the source. We obtained disk-mass estimates via empirical correlations derived for young, higher-mass, central (substellar) objects. The range of values obtained are between 0.07 and 0.63 M-circle plus (dust masses). We compare the properties of this unique disk with those recently reported around higher-mass (brown dwarfs) young objects in order to infer constraints on its mechanism of formation. While extreme assumptions on dust temperature yield disk-mass values that could slightly diverge from the general trends found for more massive brown dwarfs, a range of sensible values provide disk masses compatible with a unique scaling relation between M-dust and M* through the substellar domain down to planetary masses.
    ISSN
    2041-8213
    DOI
    10.3847/2041-8213/aa7046
    Version
    Final published version
    Sponsors
    Proyecto Fondecyt Iniciacion [11140572]; Science Foundation Ireland [13/ERC/12907]; NSFC [11503087]; Natural Science Foundation of Jiangsu Province of China [BK20141046]; German Academic Exchange Service; China Scholarship Council; UV; European Science Council under the Horizon 2020 framework program via the ERC Consolidator grant [CSF-648505]; NASA through Hubble Fellowship - Space Telescope Science Institute [HST-HF2-51380.001-A]; NASA [NAS 5-26555]
    Additional Links
    http://stacks.iop.org/2041-8205/841/i=1/a=L11?key=crossref.44e4b5ecefbf5183efbcd3cb29d79944
    ae974a485f413a2113503eed53cd6c53
    10.3847/2041-8213/aa7046
    Scopus Count
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    UA Faculty Publications

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