Identifying Anticyclonic Vortex Features Produced by the Rossby Wave Instability in Protoplanetary Disks

doi:10.3847/1538-4357/aae317

Title: Identifying Anticyclonic Vortex Features Produced by the Rossby Wave Instability in Protoplanetary Disks

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 ¹²CO emission around the frequency of 345 GHz. Wemore »« less

Authors:

Huang, Pinghui ^[1];

^[2];

^[3];

^[4]

Chinese Academy of Sciences, Nanjing (People's Republic of China); Univ. of Chinese Academy of Sciences, Beijing (People's Republic of China); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Rice Univ., Houston, TX (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Chinese Academy of Sciences, Nanjing (People's Republic of China)

Publication Date:: 2018-10-25

Research Org.:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Org.:: USDOE Laboratory Directed Research and Development (LDRD) Program

OSTI Identifier:: 1542839

Report Number(s):: LA-UR-18-26756
Journal ID: ISSN 1538-4357

Grant/Contract Number:: 89233218CNA000001

Resource Type:: Accepted Manuscript

Journal Name:: The Astrophysical Journal (Online)

Additional Journal Information:: Journal Name: The Astrophysical Journal (Online); Journal Volume: 867; Journal Issue: 1; Journal ID: ISSN 1538-4357

Publisher:: Institute of Physics (IOP)

Country of Publication:: United States

Language:: English

Subject:: 79 ASTRONOMY AND ASTROPHYSICS; Astronomy and Astrophysics; hydrodynamics; instabilities; line: profiles; planet; disk interactions; protoplanetary disks; submillimeter: planetary systems

Citation Formats


                    Huang, Pinghui, Isella, Andrea, Li, Hui, Li, Shengtai, and Ji, Jianghui. Identifying Anticyclonic Vortex Features Produced by the Rossby Wave Instability in Protoplanetary Disks.  United States: N. p., 2018. 
        Web.  doi:10.3847/1538-4357/aae317.

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                    Huang, Pinghui, Isella, Andrea, Li, Hui, Li, Shengtai, & Ji, Jianghui. Identifying Anticyclonic Vortex Features Produced by the Rossby Wave Instability in Protoplanetary Disks.  United States.  doi:10.3847/1538-4357/aae317.

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                    Huang, Pinghui, Isella, Andrea, Li, Hui, Li, Shengtai, and Ji, Jianghui. Thu .  
        "Identifying Anticyclonic Vortex Features Produced by the Rossby Wave Instability in Protoplanetary Disks".  United States.  doi:10.3847/1538-4357/aae317.  https://www.osti.gov/servlets/purl/1542839.

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@article{osti_1542839,

  title        = {Identifying Anticyclonic Vortex Features Produced by the Rossby Wave Instability in Protoplanetary Disks},

  author       = {Huang, Pinghui and Isella, Andrea and Li, Hui and Li, Shengtai and Ji, Jianghui},

  abstractNote = {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 12CO 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.},

  doi          = {10.3847/1538-4357/aae317},

  journal      = {The Astrophysical Journal (Online)},

  number       = 1,

  volume       = 867,

  place        = {United States},

  year         = {2018},

  month        = {10}

}

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DOI: 10.3847/1538-4357/aae317

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Works referenced in this record:

Lopsided dust rings in transition disks
journal, January 2013

Birnstiel, T.; Dullemond, C. P.; Pinilla, P.
Astronomy & Astrophysics, Vol. 550
DOI: 10.1051/0004-6361/201220847

Coagulation, fragmentation and radial motion of solid particles in protoplanetary disks
journal, November 2007

Brauer, F.; Dullemond, C. P.; Henning, Th.
Astronomy & Astrophysics, Vol. 480, Issue 3
DOI: 10.1051/0004-6361:20077759

Seeds Adaptive Optics Imaging of the Asymmetric Transition disk oph irs 48 in Scattered Light
journal, January 2015

Follette, Katherine B.; Grady, Carol A.; Swearingen, Jeremy R.
The Astrophysical Journal, Vol. 798, Issue 2
DOI: 10.1088/0004-637X/798/2/132

Accretion and the Evolution of T Tauri Disks
journal, March 1998

Hartmann, Lee; Calvet, Nuria; Gullbring, Erik
The Astrophysical Journal, Vol. 495, Issue 1
DOI: 10.1086/305277

Rossby Wave Instability of Keplerian Accretion Disks
journal, March 1999

Lovelace, R. V. E.; Li, H.; Colgate, S. A.
The Astrophysical Journal, Vol. 513, Issue 2
DOI: 10.1086/306900

Large-Scale Asymmetries in the Transitional Disks of sao 206462 and sr 21
journal, February 2014

Pérez, Laura M.; Isella, Andrea; Carpenter, John M.
The Astrophysical Journal, Vol. 783, Issue 1
DOI: 10.1088/2041-8205/783/1/L13

Dust and gas in the disk of hl Tauri: Surface Density, dust Settling, and Dust-To-Gas Ratio
journal, December 2015

Pinte, C.; Dent, W. R. F.; Ménard, F.
The Astrophysical Journal, Vol. 816, Issue 1
DOI: 10.3847/0004-637X/816/1/25

Formation of the Giant Planets by Concurrent Accretion of Solids and Gas
journal, November 1996

Pollack, James B.; Hubickyj, Olenka; Bodenheimer, Peter
Icarus, Vol. 124, Issue 1
DOI: 10.1006/icar.1996.0190

A Major Asymmetric Dust Trap in a Transition Disk
journal, June 2013

van der Marel, N.; van Dishoeck, E. F.; Bruderer, S.
Science, Vol. 340, Issue 6137
DOI: 10.1126/science.1236770

Aerodynamics of solid bodies in the solar nebula
journal, September 1977

Weidenschilling, S. J.
Monthly Notices of the Royal Astronomical Society, Vol. 180, Issue 2
DOI: 10.1093/mnras/180.2.57

Dust Grain–Size Distributions and Extinction in the Milky Way, Large Magellanic Cloud, and Small Magellanic Cloud
journal, February 2001

Weingartner, Joseph C.; Draine, B. T.
The Astrophysical Journal, Vol. 548, Issue 1
DOI: 10.1086/318651

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Title: Identifying Anticyclonic Vortex Features Produced by the Rossby Wave Instability in Protoplanetary Disks

Abstract

Citation Formats

Lopsided dust rings in transition disks journal, January 2013

Coagulation, fragmentation and radial motion of solid particles in protoplanetary disks journal, November 2007

Seeds Adaptive Optics Imaging of the Asymmetric Transition disk oph irs 48 in Scattered Light journal, January 2015

Accretion and the Evolution of T Tauri Disks journal, March 1998

Rossby Wave Instability of Keplerian Accretion Disks journal, March 1999

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A Major Asymmetric Dust Trap in a Transition Disk journal, June 2013

Aerodynamics of solid bodies in the solar nebula journal, September 1977

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journal, January 2013

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journal, November 2007

Seeds Adaptive Optics Imaging of the Asymmetric Transition disk oph irs 48 in Scattered Light
journal, January 2015

Accretion and the Evolution of T Tauri Disks
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