Dust Continuum Emission and the Upper Limit Fluxes of Submillimeter Water Lines of the Protoplanetary Disk around HD 163296 Observed by ALMA

doi:10.3847/1538-4357/ab0ae9

	Dust Continuum Emission and the Upper Limit Fluxes of Submillimeter Water Lines of the Protoplanetary Disk around HD 163296 Observed by ALMA
	Notsu, Shota 1; Akiyama, Eiji 2; Booth, Alice 3; Nomura, Hideko 4; Walsh, Catherine 5; Hirota, Tomoya 6; Honda, Mitsuhiko 7; Tsukagoshi, Takashi 8; Millar, T. J.9
	2019-04-20
发表期刊	ASTROPHYSICAL JOURNAL
ISSN	0004-637X
EISSN	1538-4357
卷号	875 期号:2
摘要	In this paper, we analyze the upper limit fluxes of submillimeter ortho-(H2O)-O-16 321 GHz, para-(H2O)-O-18 322 GHz, and HDO 335 GHz lines from the protoplanetary disk around the Herbig Ae star HD 163296, using the Atacama Large Millimeter/Submillimeter Array. These water lines are considered to be the best candidate submillimeter lines to locate the position of the H2O snowline, on the basis of our previous model calculations. We compare the upper limit fluxes with the values calculated by our models with dust emission included, and we constrain the line-emitting region and the dust opacity from the observations. We conclude that, if the outer edge of the region with a high water abundance and the position of the water snowline are both beyond 8 au, then themillimeter dust opacity kappa(mm) will have a value larger than 2.0 cm(2) g(-1). In addition, the position of the water snowline must lie inside 20 au if the millimeter dust opacity kappa(mm) is 2.0 cm(2) g(-1). Future observations of the dust continuum emission at higher angular resolution and submillimeter water lines with a longer observation time are required to clarify the detailed structures and the position of the H2O snowline in the disk midplane.
关键词	astrochemistry ISM: molecules protoplanetary disks stars: formation stars: individual (HD163296) submillimeter: planetary systems
DOI	10.3847/1538-4357/ab0ae9
收录类别	SCI
语种	英语
WOS关键词	Astronomy & Astrophysics
WOS研究方向	Science & Technology
WOS类目	Astronomy & Astrophysics
WOS记录号	WOS:000465444000018
出版者	IOP PUBLISHING LTD
引用统计
文献类型	期刊论文
专题	任务一_子任务一循证社会科学证据集成任务一
作者单位	1.Kyoto Univ, Grad Sch Sci, Dept Astron, Sakyo Ku, Kitashirakawa Oiwake Cho, Kyoto, Kyoto 6068502, Japan 2.Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands 3.JSPS, Tokyo, Japan 4.Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands 5.JSPS, Tokyo, Japan 6.Tokyo Inst Technol, Dept Earth & Planetary Sci, Meguro Ku, 2-12-1 Ookayama, Tokyo 1528551, Japan 7.Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan 8.JSPS, Tokyo, Japan 9.Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan
推荐引用方式 GB/T 7714	Notsu, Shota,Akiyama, Eiji,Booth, Alice,et al. Dust Continuum Emission and the Upper Limit Fluxes of Submillimeter Water Lines of the Protoplanetary Disk around HD 163296 Observed by ALMA[J]. ASTROPHYSICAL JOURNAL,2019,875(2).
APA	Notsu, Shota.,Akiyama, Eiji.,Booth, Alice.,Nomura, Hideko.,Walsh, Catherine.,...&Millar, T. J..(2019).Dust Continuum Emission and the Upper Limit Fluxes of Submillimeter Water Lines of the Protoplanetary Disk around HD 163296 Observed by ALMA.ASTROPHYSICAL JOURNAL,875(2).
MLA	Notsu, Shota,et al."Dust Continuum Emission and the Upper Limit Fluxes of Submillimeter Water Lines of the Protoplanetary Disk around HD 163296 Observed by ALMA".ASTROPHYSICAL JOURNAL 875.2(2019).