First Millimeter Detection of the Disk around a Young, Isolated, Planetary-mass Object
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Author
Bayo, Amelia
Joergens, Viki
Liu, Yao
Brauer, Robert
Olofsson, J.

Arancibia, Javier
Pinilla, Paola
Wolf, Sebastian
Ruge, Jan Philipp
Henning, Thomas

Natta, Antonella
Johnston, Katharine G.

Bonnefoy, Mickael
Beuther, Henrik

Chauvin, Gael
Affiliation
Univ Arizona, Dept Astron, Steward ObservIssue Date
2017-05-18
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IOP PUBLISHING LTDCitation
First Millimeter Detection of the Disk around a Young, Isolated, Planetary-mass Object 2017, 841 (1):L11 The Astrophysical 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
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
2041-8213Version
Final published versionSponsors
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.44e4b5ecefbf5183efbcd3cb29d79944ae974a485f413a2113503eed53cd6c53
10.3847/2041-8213/aa7046