Water snowline in protoplanetary disks. (2020)

• Record Type: Book
• Further Information: Note: Shota Notsu.
• Other Names: Notsu, Shota
• Contents: Intro -- Supervisors' Foreword -- Parts of this thesis have been published in the following journal articles. -- Acknowledgements -- Contents -- 1 Introduction -- 1.1 The Overview of the Protoplanetary Disks -- 1.2 The Definition of the H2O Snowline in the Protoplanetary Disks -- 1.3 The Positions of the H2O Snowline and the Roles of Water Molecules -- 1.4 Previous Direct Imaging Observations of Protoplanetary Disks -- 1.5 Previous Spectroscopic Observations of Strong Water Lines -- 1.6 Purposes and Structure of This Thesis -- References -- 2 Modeling Studies I. The Case of the T Tauri Star 2.1 Methods -- 2.1.1 The Disk Physical Model -- 2.1.2 Overview of Disk Chemical Structure -- 2.1.3 Gas-Phase Reactions -- 2.1.4 Gas-Grain Interactions -- 2.1.5 Water Emission Line Profiles -- 2.2 Results -- 2.2.1 The Distributions of H2O Gas and Ice -- 2.2.2 The Overview of Ortho-H216O Lines from the T Tauri Disk -- 2.2.3 The Case of a Candidate Ortho-H216O Emission Line -- 2.2.4 The Case of a Ortho-H216O Emission Line that Probes the Hot Surface Layer -- 2.2.5 The Case of a Ortho-H216O Emission Line that Probes the Cold Water Resovoir -- 2.3 Discussions -- 2.3.1 Influence of Model Assumptions 2.3.2 Critical Density and the Assumption of LTE -- 2.3.3 Requirement for the Observations -- 2.4 Conclusion -- References -- 3 Modeling Studies II. The Case of the Herbig Ae Star -- 3.1 Methods -- 3.2 Results -- 3.2.1 The H2O Gas and Ice Distributions -- 3.2.2 The Overview of Ortho-H216O Lines from a Herbig Ae Disk -- 3.2.3 The Case of Candidate Ortho-H216O Emission Lines -- 3.2.4 The Case of the Less Suited Ortho-H216O Emission Lines -- 3.2.5 The Candidate Ortho-H216O Line Fluxes -- 3.2.6 The Radial Distributions of Normalized Cumulative Line Fluxes -- 3.3 Discussions 3.3.1 Influence of Model Assumptions on the Line Properties -- 3.3.2 Critical Density and the Assumption of LTE -- 3.3.3 Previous Water Line Observations in Herbig Ae Disks -- 3.3.4 Requirement for the Observations of Candidate Ortho-H216O Lines -- 3.4 Conclusion -- References -- 4 Modeling Studies III. Sub-millimeter H216O and H218O Lines -- 4.1 Methods -- 4.1.1 The Disk Physical Structures and Molecular Abundances -- 4.1.2 Water Emission Line Profiles from Protoplanetary Disks -- 4.2 Results -- 4.2.1 The Profiles of Sub-millimeter Water Emission Lines 4.2.2 The Local Intensity and Optical Depth Distributions -- 4.2.3 The Normalized Radial Cumulative Line Fluxes -- 4.2.4 The Properties of All Other Sub-millimeter Water Emission Lines -- 4.3 Discussions -- 4.3.1 Influence of Dust Emission on Water Line Properties -- 4.3.2 Influence of Different H2O Snowline Positions and Line Velocity Resolutions -- 4.3.3 Requirement for the Future Observations -- 4.4 Conclusion -- References -- 5 ALMA Observation of the Protoplanetary Disk Around HD 163296 -- 5.1 Observation -- 5.1.1 Setup of Our Observation and Data Reduction -- 5.1.2 Targets
• Publisher Details: Singapore : Springer
• Publication Date: 2020
• Copyright Date: 2020
• Extent: 1 online resource (134 pages)
• Subjects: 523.2; 520; Protoplanetary disks; Planets -- Water; Astronomy -- Observations; Planetary science; Solar system: the Sun & planets; Astronomy, space & time; Science -- Astronomy; Astronomy; Planetary science; Planets -- Water; Protoplanetary disks; Electronic books; Observations
• Languages: English
• ISBNs: 9789811574399
• Related ISBNs: 9789811574382
• Access Rights: Legal Deposit; Only available on premises controlled by the deposit library and to one user at any one time; The Legal Deposit Libraries (Non-Print Works) Regulations (UK).
• Access Usage: Restricted: Printing from this resource is governed by The Legal Deposit Libraries (Non-Print Works) Regulations (UK) and UK copyright law currently in force.