PMO OpenIR
Identifying Anticyclonic Vortex Features Produced by the Rossby Wave Instability in Protoplanetary Disks
Huang, Pinghui1,2,3; Isella, Andrea4; Li, Hui3; Li, Shengtai3; Ji, Jianghui1
2018-11-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume867Issue:1Pages:11
Abstract

Several nearby protoplanetary disks have been observed to display large-scale crescents in the (sub) millimeter dust continuum emission. One interpretation is that these structures correspond to anticyclonic vortices generated by the Rossby wave instability within the gaseous disk. Such vortices have local gas overdensities and are expected to concentrate dust particles with a Stokes number around unity. This process might catalyze the formation of planetesimals. Whereas recent observations showed that dust crescents are indeed regions where millimeter-size particles have abnormally high concentration relative to the gas and smaller grains, no observations have yet shown that the gas within the crescent region counterrotates with respect to the protoplanetary disk. Here we investigate the detectability of anticyclonic features through measurement of the line-of-sight component of the gas velocity obtained with ALMA. We carry out 2D hydrodynamic simulations and 3D radiative transfer calculations of a protoplanetary disk characterized by a vortex created by the tidal interaction with a massive planet. As a case study, the disk parameters are chosen to mimic the IRS. 48 system, which has the most prominent crescent observed to date. We generate synthetic ALMA observations of both the dust continuum and (CO)-C-12 emission around the frequency of 345 GHz. We find that the anticyclonic features of the vortex are weak but can be detected if both the source and the observational setup are properly chosen. We provide a recipe for maximizing the probability of detecting such vortex features and present an analysis procedure to infer their kinematic properties.

Keywordhydrodynamics instabilities line: profiles planet-disk interactions protoplanetary disks submillimeter: planetary systems
DOI10.3847/1538-4357/aae317
WOS KeywordTHIN ACCRETION DISKS ; GRAINS ; DISTRIBUTIONS ; SIMULATIONS ; EXTINCTION ; EVOLUTION ; CLOUDS ; SOLAR
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000448448800003
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/21005
Collection中国科学院紫金山天文台
Corresponding AuthorHuang, Pinghui
Affiliation1.Chinese Acad Sci, Purple Mt Observ, CAS Key Lab Planetary Sci, Nanjing 210008, Jiangsu, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
4.Rice Univ, Dept Phys & Astron, 6100 Main St, Houston, TX 77005 USA
Recommended Citation
GB/T 7714
Huang, Pinghui,Isella, Andrea,Li, Hui,et al. Identifying Anticyclonic Vortex Features Produced by the Rossby Wave Instability in Protoplanetary Disks[J]. ASTROPHYSICAL JOURNAL,2018,867(1):11.
APA Huang, Pinghui,Isella, Andrea,Li, Hui,Li, Shengtai,&Ji, Jianghui.(2018).Identifying Anticyclonic Vortex Features Produced by the Rossby Wave Instability in Protoplanetary Disks.ASTROPHYSICAL JOURNAL,867(1),11.
MLA Huang, Pinghui,et al."Identifying Anticyclonic Vortex Features Produced by the Rossby Wave Instability in Protoplanetary Disks".ASTROPHYSICAL JOURNAL 867.1(2018):11.
Files in This Item:
File Name/Size DocType Version Access License
2018-IR-67.pdf(2584KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Huang, Pinghui]'s Articles
[Isella, Andrea]'s Articles
[Li, Hui]'s Articles
Baidu academic
Similar articles in Baidu academic
[Huang, Pinghui]'s Articles
[Isella, Andrea]'s Articles
[Li, Hui]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Huang, Pinghui]'s Articles
[Isella, Andrea]'s Articles
[Li, Hui]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 2018-IR-67.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.