Work

Dynamical Evolution of The Gas-Dust Accretion Disks of Young Stars with Large-Scale Magnetic Field

Year: 2025

Type: conference-paper

Abstract: We review the current state of research on gas-dust accretion disks of young stars. Particular attention is paid to the magnetic fields of disks, properties of dust grains, and models of angular momentum transfer. We conclude that self-consistent MHD models that take into account both MHD turbulence and outflows are necessary for developing the theory of accretion disk evolution. Development of such models requires selection of optimal approaches to calculating the ionization state of gas-dust accretion disks taking into account charges of dust grains of different sizes. The authors’ model show that submicron dust grains are the main carriers of electric charge inside the ‘dead’ zones. Calculations of the magnetic field strength in the kinematic approximation demonstrate significant changes in the magnetic flux distribution of the disk during its evolution.

Source: Physics of Space: All-Russian Student Scientific Conference with International Participation

DOI: 10.15826/b978-5-7996-3986-0.10

Authors: S. A. Khaibrakhmanov, V. V. Akimkin, A. K. Orlov

Institutions: Ural Federal University, Chelyabinsk State University, St Petersburg University, Institute of Astronomy

Language: English

Topic: Astrophysics and Star Formation Studies

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W4412584708

FWCI:

Cites: 36

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Related to: 10