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Inner dusty regions of protoplanetary discs - II. Dust dynamics driven by radiation pressure and disc winds
Vinkovic, Dejan1; Cemeljic, Miljenko2,3,4
2021
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume500Issue:1Pages:506-519
AbstractWe explore dust flow in the hottest parts of protoplanetary discs using the forces of gravity, gas drag, and radiation pressure. Our main focus is on the optically thin regions of dusty disc, where the dust is exposed to the most extreme heating conditions and dynamical perturbations: the surface of optically thick disc and the inner dust sublimation zone. We utilize results from two numerically strenuous fields of research. The first is the quasi-stationary solutions on gas velocity and density distributions from mangetohydrodynamical (MHD) simulations of accretion discs. This is critical for implementing a more realistic gas drag impact on dust movements. The second is the optical depth structure from a high-resolution dust radiation transfer. This step is critical for a better understanding of dust distribution within the disc. We describe a numerical method that incorporates these solutions into the dust dynamics equations. We use this to integrate dust trajectories under different disc wind models and show how grains end up trapped in flows that range from simple accretion on to the star to outflows into outer disc regions. We demonstrate how the radiation pressure force plays one of the key roles in this process and cannot be ignored. It erodes the dusty disc surface, reduces its height, resists dust accretion on to the star, and helps the disc wind in pushing grains outwards. The changes in grain size and porosity significantly affect the results, with smaller and porous grains being influenced more strongly by the disc wind and radiation pressure.
Keywordmagnetic fields MHD stars: pre-main-sequence
Funding OrganizationCroatian project STAR-DUST through HRZZ grant ; Croatian project STAR-DUST through HRZZ grant ; Polish NCN ; Polish NCN ; CAS-TWAS President's Fellowship for International PhD Students ; CAS-TWAS President's Fellowship for International PhD Students ; ANR Toupies grant ; ANR Toupies grant ; Croatian project STAR-DUST through HRZZ grant ; Croatian project STAR-DUST through HRZZ grant ; Polish NCN ; Polish NCN ; CAS-TWAS President's Fellowship for International PhD Students ; CAS-TWAS President's Fellowship for International PhD Students ; ANR Toupies grant ; ANR Toupies grant ; Croatian project STAR-DUST through HRZZ grant ; Croatian project STAR-DUST through HRZZ grant ; Polish NCN ; Polish NCN ; CAS-TWAS President's Fellowship for International PhD Students ; CAS-TWAS President's Fellowship for International PhD Students ; ANR Toupies grant ; ANR Toupies grant ; Croatian project STAR-DUST through HRZZ grant ; Croatian project STAR-DUST through HRZZ grant ; Polish NCN ; Polish NCN ; CAS-TWAS President's Fellowship for International PhD Students ; CAS-TWAS President's Fellowship for International PhD Students ; ANR Toupies grant ; ANR Toupies grant
DOI10.1093/mnras/staa3272
WOS KeywordSYSTEMS ; SURFACE ; SCHEME
Language英语
Funding ProjectCroatian project STAR-DUST through HRZZ grant[IP-2014-09-8656] ; Polish NCN[2019/33/B/ST9/01564] ; CAS-TWAS President's Fellowship for International PhD Students[2020VMC0002] ; ANR Toupies grant
Funding OrganizationCroatian project STAR-DUST through HRZZ grant ; Croatian project STAR-DUST through HRZZ grant ; Polish NCN ; Polish NCN ; CAS-TWAS President's Fellowship for International PhD Students ; CAS-TWAS President's Fellowship for International PhD Students ; ANR Toupies grant ; ANR Toupies grant ; Croatian project STAR-DUST through HRZZ grant ; Croatian project STAR-DUST through HRZZ grant ; Polish NCN ; Polish NCN ; CAS-TWAS President's Fellowship for International PhD Students ; CAS-TWAS President's Fellowship for International PhD Students ; ANR Toupies grant ; ANR Toupies grant ; Croatian project STAR-DUST through HRZZ grant ; Croatian project STAR-DUST through HRZZ grant ; Polish NCN ; Polish NCN ; CAS-TWAS President's Fellowship for International PhD Students ; CAS-TWAS President's Fellowship for International PhD Students ; ANR Toupies grant ; ANR Toupies grant ; Croatian project STAR-DUST through HRZZ grant ; Croatian project STAR-DUST through HRZZ grant ; Polish NCN ; Polish NCN ; CAS-TWAS President's Fellowship for International PhD Students ; CAS-TWAS President's Fellowship for International PhD Students ; ANR Toupies grant ; ANR Toupies grant
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000599134600039
PublisherOXFORD UNIV PRESS
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Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/80264
Collection中国科学院国家天文台
Corresponding AuthorVinkovic, Dejan
Affiliation1.Sci & Soc Synergy Inst, Bana Josipa Jelacica 22, HR-40000 Cakovec, Croatia
2.Polish Acad Sci, Nicolaus Copernicus Astron Ctr, Bartycka 18, PL-00716 Warsaw, Poland
3.Acad Sinica, Inst Astron & Astrophys, POB 23-141, Taipei 106, Taiwan
4.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
Recommended Citation
GB/T 7714
Vinkovic, Dejan,Cemeljic, Miljenko. Inner dusty regions of protoplanetary discs - II. Dust dynamics driven by radiation pressure and disc winds[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,500(1):506-519.
APA Vinkovic, Dejan,&Cemeljic, Miljenko.(2021).Inner dusty regions of protoplanetary discs - II. Dust dynamics driven by radiation pressure and disc winds.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,500(1),506-519.
MLA Vinkovic, Dejan,et al."Inner dusty regions of protoplanetary discs - II. Dust dynamics driven by radiation pressure and disc winds".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 500.1(2021):506-519.
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