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First Millimeter Detection of the Disk around a Young, Isolated, Planetary-mass Object
Bayo, Amelia1; Joergens, Viki2; Liu, Yao2,3,4; Brauer, Robert5; Olofsson, Johan1,2; Arancibia, Javier1; Pinilla, Paola6; Wolf, Sebastian5; Ruge, Jan Philipp5; Henning, Thomas2; Natta, Antonella7,8; Johnston, Katharine G.9; Bonnefoy, Mickael10; Beuther, Henrik2; Chauvin, Gael10,11,12
2017-05-20
Source PublicationASTROPHYSICAL JOURNAL LETTERS
ISSN2041-8205
Volume841Issue:1Pages:4
Corresponding AuthorBayo, Amelia(ameia.bayo@uv.cl)
AbstractOTS44 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.
Keywordbrown dwarfs stars: formation stars: low-mass stars: pre-main sequence
DOI10.3847/2041-8213/aa7046
WOS KeywordBROWN DWARF DISKS ; STAR-FORMING REGION ; CHAMELEON-I ; PRESTELLAR CORES ; HERSCHEL SURVEY ; RHO OPHIUCHI ; CLOUD CORE ; COLD DUST ; FRAGMENTATION ; EMISSION
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000402563400009
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22989
Collection中国科学院紫金山天文台
Corresponding AuthorBayo, Amelia
Affiliation1.Univ Valparaiso, Inst Fis & Astron, Fac Ciencias, Ave Gran Bretana 1111, Valparaiso, Chile
2.Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany
3.Chinese Acad Sci, Purple Mt Observ, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
4.Chinese Acad Sci, Key Lab Radio Astron, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
5.Univ Kiel, Inst Theoret Phys & Astrophys, Leibnizstr 15, D-24118 Kiel, Germany
6.Univ Arizona, Dept Astron, Steward Observ, 933 North Cherry Ave, Tucson, AZ 85721 USA
7.Dublin Inst Adv Studies, Sch Cosm Phys, 31 Fitzwilliams Pl, Dublin 2, Ireland
8.INAF Osservatorio Astrofis Arcetri, Lgo E Fermi 5, I-50125 Florence, Italy
9.Univ Leeds, Sch Phys & Astron, EC Stoner Bldg, Leeds LS2 9JT, W Yorkshire, England
10.Univ Grenoble Alpes, CNRS, IPAG, F-38000 Grenoble, France
11.Univ Chile, CNRS INSU UMI 3386, Unidad Mixta Int Francochilena Astron, Casilla 36-D, Santiago, Chile
12.Univ Chile, Dept Astron, Casilla 36-D, Santiago, Chile
Recommended Citation
GB/T 7714
Bayo, Amelia,Joergens, Viki,Liu, Yao,et al. First Millimeter Detection of the Disk around a Young, Isolated, Planetary-mass Object[J]. ASTROPHYSICAL JOURNAL LETTERS,2017,841(1):4.
APA Bayo, Amelia.,Joergens, Viki.,Liu, Yao.,Brauer, Robert.,Olofsson, Johan.,...&Chauvin, Gael.(2017).First Millimeter Detection of the Disk around a Young, Isolated, Planetary-mass Object.ASTROPHYSICAL JOURNAL LETTERS,841(1),4.
MLA Bayo, Amelia,et al."First Millimeter Detection of the Disk around a Young, Isolated, Planetary-mass Object".ASTROPHYSICAL JOURNAL LETTERS 841.1(2017):4.
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