Print

2023　Advanced Earth and Space Sciences B

Font size  SML

Register update notification mail Add to favorite lecture list
Academic unit or major
Graduate major in Earth and Planetary Sciences
Instructor(s)
Okuzumi Satoshi 
Class Format
Lecture    (Face-to-face)
Media-enhanced courses
Day/Period(Room No.)
Mon5-6(石川台2号館Ishikawadai Bldg. 2　307)  Thr5-6(石川台2号館Ishikawadai Bldg. 2　307)  
Group
-
Course number
EPS.A411
Credits
2
Academic year
2023
Offered quarter
1Q
Syllabus updated
2023/3/20
Lecture notes updated
-
Language used
English
Access Index

Course description and aims

This course deals with the physics of gas and dust evolution in protoplanetary disks. Protoplanetary disks are gas disks surrounding young stars, and the solids in the disks are the building blocks of planets and other solid bodies. We will learn how micron-sized dust particles form kilometer-sized solid bodies called planetesimals.

Student learning outcomes

1) Understand the physical processes governing the evolution of gas and dust in protoplanetary disks, including the solar nebula
2) Become familiar with order-of-magnitude estimates --- how to understand physics underlying complex phenomena

Keywords

planet formation, protoplanetary disks, planetesimals, dust

Competencies that will be developed

✔ Specialist skills Intercultural skills ✔ Communication skills ✔ Critical thinking skills ✔ Practical and/or problem-solving skills

Class flow

Each consists of a lecture and question time. In question time, students ask the instructor questions about the topic dealt with in the previous class.

Course schedule/Required learning

  Course schedule Required learning
Class 1 Introduction Understand the basic concepts of protoplanetary disks and planetesimals
Class 2 Protoplanetary disks 1: Structure Understand the structure of disks around young stars
Class 3 Protoplanetary disks 2: Dynamics Understand how protoplanetary disks evolves
Class 4 Protoplanetary disks 3: Observations Understand how dust particles move in gas disks
Class 5 Particle motion in laminar protoplanetary disks Understand the vertical settling and radial drift of dust
Class 6 Particle motion in turbulence 1: diffusion Understand the notion of diffusion
Class 7 Particle motion in turbulence 2: collisions Understand how turbulence induces particles' collision velocity
Class 8 Mechanics of dust aggregates 2: theory Understand how small grains stick together and form macroscopic bodies
Class 9 Mechanics of dust aggregates 2: simulations and experiments Understand how small grains stick together and form macroscopic bodies
Class 10 Planetesimal formation 1: global dust evolution Understand how dust grains grow and migrate in protoplanetary disks
Class 11 Planetesimal formation 2: dust concentration Understand how micron-sized dust grains form (and do not form) kilometer-sized solid bodies
Class 12 Motion of particles around a planet(esimal) Understand Hill's equation
Class 13 Pebble accretion Understand how large solid bodies accrete dust particles in gas disks
Class 14 Synthesis Understand outstanding issues in planetesimal formation studies

Out-of-Class Study Time (Preparation and Review)

To enhance effective learning, students are encouraged to spend approximately 100 minutes preparing for class and another 100 minutes reviewing class content afterwards (including assignments) for each class.
They should do so by referring to textbooks and other course material.

Textbook(s)

None

Reference books, course materials, etc.

Handouts will be provided.

Assessment criteria and methods

Grades will be based on in-class discussion and/or reports.

Related courses

  • EPS.A410 ： Astrophysics and Planetary Physics A
  • EPS.A413 ： Astrophysics and Planetary Physics D

Prerequisites (i.e., required knowledge, skills, courses, etc.)

Basic knowledge of physics, astronomy, and the solar system

Page Top