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Dust-gas instabilities in protoplanetary disks : toward understanding planetesimal formation / / Ryosuke Tominaga
| Dust-gas instabilities in protoplanetary disks : toward understanding planetesimal formation / / Ryosuke Tominaga |
| Autore | Tominaga Ryosuke |
| Pubbl/distr/stampa | Singapore : , : Springer, , [2022] |
| Descrizione fisica | 1 online resource (125 pages) |
| Disciplina | 523.4 |
| Collana | Springer Theses |
| Soggetto topico |
Planets - Origin
Protoplanetary disks |
| ISBN |
9789811917653
9789811917646 |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Intro -- Supervisor's Foreword -- Acknowledgements -- Contents -- 1 Introduction -- 1.1 From Molecular Cloud Cores to Protoplanetary Disks -- 1.2 Dust Dynamics in Protoplanetary Disks -- 1.2.1 Radial Drift and Vertical Sedimentation -- 1.2.2 The Effects of Turbulence on Dust Grains -- 1.2.3 Gravitational Instability of a Dust Layer -- 1.2.4 Secular Gravitational Instability -- 1.3 ALMA Observations of Annular Substructures -- 1.4 Purposes of This Thesis -- References -- 2 Revision of Macroscopic Equations for Dust Diffusion -- 2.1 Short Introduction: Unphysical Momentum Transport Due to the Diffusion Term -- 2.2 Reformulation of Basic Equations from the Mean-Field Approximation -- 2.3 Linear Analyses -- 2.3.1 Basic Equations -- 2.3.2 Linearized Equations -- 2.3.3 Results -- 2.4 Discussion: Effects of Disk Thickness -- 2.5 Summary -- References -- 3 Numerical Simulations of Secular Instabilities -- 3.1 Short Introduction -- 3.2 Numerical Methods -- 3.2.1 Lagrangian-Cell Method -- 3.2.2 The Piecewise Exact Solution for Friction -- 3.2.3 Methods for Turbulent Diffusion and Viscosity -- 3.3 Simulations of Radially Extended Disks -- 3.3.1 Formation of Transient Low-Contrast Dust Rings -- 3.4 Discussion -- 3.4.1 Linear Analyses with Dust Drift -- 3.4.2 Condition for the Thin Dense Ring Formation -- 3.4.3 Fate of Dense Dusty Rings -- 3.4.4 Observational Justification -- 3.4.5 Effects on Dust-to-Gas Ratio Dependence on the Dust Coefficient -- 3.5 Summary -- References -- 4 Coagulation Instability: Self-induced Dust Concentration -- 4.1 Short Introduction -- 4.2 Basic Equations for Linear Analyses with Dust Growth -- 4.3 Linear Analyses and Results -- 4.4 Discussion -- 4.4.1 Impact of Dust Diffusion -- 4.4.2 Effects of Other Collision Velocities.
4.4.3 Coevolution with Other Dust-Gas Instabilities: Bridging a Gap Between First Dust Growth and Hydrodynamical Clumping Toward Planetesimal Formation -- 4.5 Summary -- References -- 5 Summary and Future Prospects -- 5.1 Summary of This Thesis -- 5.2 Future Prospects -- References. |
| Record Nr. | UNISA-996472059803316 |
Tominaga Ryosuke
|
||
| Singapore : , : Springer, , [2022] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. di Salerno | ||
| ||
Dust-gas instabilities in protoplanetary disks : toward understanding planetesimal formation / / Ryosuke Tominaga
| Dust-gas instabilities in protoplanetary disks : toward understanding planetesimal formation / / Ryosuke Tominaga |
| Autore | Tominaga Ryosuke |
| Pubbl/distr/stampa | Singapore : , : Springer, , [2022] |
| Descrizione fisica | 1 online resource (125 pages) |
| Disciplina | 523.4 |
| Collana | Springer Theses |
| Soggetto topico |
Planets - Origin
Protoplanetary disks |
| ISBN |
9789811917653
9789811917646 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Intro -- Supervisor's Foreword -- Acknowledgements -- Contents -- 1 Introduction -- 1.1 From Molecular Cloud Cores to Protoplanetary Disks -- 1.2 Dust Dynamics in Protoplanetary Disks -- 1.2.1 Radial Drift and Vertical Sedimentation -- 1.2.2 The Effects of Turbulence on Dust Grains -- 1.2.3 Gravitational Instability of a Dust Layer -- 1.2.4 Secular Gravitational Instability -- 1.3 ALMA Observations of Annular Substructures -- 1.4 Purposes of This Thesis -- References -- 2 Revision of Macroscopic Equations for Dust Diffusion -- 2.1 Short Introduction: Unphysical Momentum Transport Due to the Diffusion Term -- 2.2 Reformulation of Basic Equations from the Mean-Field Approximation -- 2.3 Linear Analyses -- 2.3.1 Basic Equations -- 2.3.2 Linearized Equations -- 2.3.3 Results -- 2.4 Discussion: Effects of Disk Thickness -- 2.5 Summary -- References -- 3 Numerical Simulations of Secular Instabilities -- 3.1 Short Introduction -- 3.2 Numerical Methods -- 3.2.1 Lagrangian-Cell Method -- 3.2.2 The Piecewise Exact Solution for Friction -- 3.2.3 Methods for Turbulent Diffusion and Viscosity -- 3.3 Simulations of Radially Extended Disks -- 3.3.1 Formation of Transient Low-Contrast Dust Rings -- 3.4 Discussion -- 3.4.1 Linear Analyses with Dust Drift -- 3.4.2 Condition for the Thin Dense Ring Formation -- 3.4.3 Fate of Dense Dusty Rings -- 3.4.4 Observational Justification -- 3.4.5 Effects on Dust-to-Gas Ratio Dependence on the Dust Coefficient -- 3.5 Summary -- References -- 4 Coagulation Instability: Self-induced Dust Concentration -- 4.1 Short Introduction -- 4.2 Basic Equations for Linear Analyses with Dust Growth -- 4.3 Linear Analyses and Results -- 4.4 Discussion -- 4.4.1 Impact of Dust Diffusion -- 4.4.2 Effects of Other Collision Velocities.
4.4.3 Coevolution with Other Dust-Gas Instabilities: Bridging a Gap Between First Dust Growth and Hydrodynamical Clumping Toward Planetesimal Formation -- 4.5 Summary -- References -- 5 Summary and Future Prospects -- 5.1 Summary of This Thesis -- 5.2 Future Prospects -- References. |
| Record Nr. | UNINA-9910564694903321 |
|
Tominaga Ryosuke
|
||
| Singapore : , : Springer, , [2022] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||