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

	First Millimeter Detection of the Disk around a Young, Isolated, Planetary-mass Object
	Bayo, Amelia; Joergens, Viki; Liu, Yao; Brauer, Robert; Olofsson, Johan; Arancibia, Javier; Pinilla, Paola; Wolf, Sebastian; Ruge, Jan Philipp; Henning, Thomas
刊名	ASTROPHYSICAL JOURNAL LETTERS
	2017
卷号	841 期号:1 页码:L11-
英文摘要	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.
语种	英语
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/17371]
专题	中国科学院紫金山天文台
推荐引用方式 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):L11-.
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),L11-.
MLA	Bayo, Amelia,et al."First Millimeter Detection of the Disk around a Young, Isolated, Planetary-mass Object".ASTROPHYSICAL JOURNAL LETTERS 841.1(2017):L11-.