Dust-Gas Instabilities in Protoplanetary Disks
Toward Understanding Planetesimal Formation
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Beschreibung
How planets form is one of the long-standing questions in astrophysics. In particular, formation scenarios of planetesimals which are kilometer-sized bodies and a precursor of planets are still unclear and under debate although some promising mechanisms have been proposed.
This book highlight disk instabilities that have the potential to explain the origin of planetesimals. Using linear analyses and numerical simulations, it addresses how a disk evolves through the development of instabilities, and also presents a new instability driven by dust coagulation. As a result, the simulation demonstrates a scenario of planetesimal formation: A successive development of multiple instabilities triggers planetesimal formation in resulting dusty rings.
How planets form is one of the long-standing questions in astrophysics. In particular, formation scenarios of planetesimals which are kilometer-sized bodies and a precursor of planets are still unclear and under debate although some promising mechanisms have been proposed.
This book highlight disk instabilities that have the potential to explain the origin of planetesimals. Using linear analyses and numerical simulations, it addresses how a disk evolves through the development of instabilities, and also presents a new instability driven by dust coagulation. As a result, the simulation demonstrates a scenario of planetesimal formation: A successive development of multiple instabilities triggers planetesimal formation in resulting dusty rings.
Highlights new instability triggered by dust-gas friction and turbulent viscosity Presents a new instability driven by dust coagulation in protoplanetary disks Offers a planetesimal formation scenario based on a successive development of dust-gas instabilities
Autor*in
Ryosuke Tominaga
Themen in »Dust-Gas Instabilities in Protoplanetary Disks«
Disk Evoluation Planet Formation in Protoplanetary Disks Secular Gravitational Instability Hydrodynamic Instabilities Dust-Gas Dynamics Planetesimal Formation Simulation of Secular Instabilities Coagulation Instability