Time-Dependent Accretion Disk Evolution with MHD Winds
Published:Dec 30, 2025 05:40
•1 min read
•ArXiv
Analysis
This paper provides Green's function solutions for the time evolution of accretion disks, incorporating the effects of magnetohydrodynamic (MHD) winds. It's significant because it offers a theoretical framework to understand how these winds, driven by magnetic fields, influence the mass accretion rate and overall disk lifetime in astrophysical systems like protoplanetary disks. The study explores different boundary conditions and the impact of a dimensionless parameter (ψ) representing wind strength, providing insights into the dominant processes shaping disk evolution.
Key Takeaways
- •Provides Green's function solutions for accretion disk evolution with MHD winds.
- •Investigates the impact of different inner boundary conditions on disk evolution.
- •Demonstrates that wind strength (ψ) significantly affects disk lifetime.
- •Offers a framework for studying the long-term evolution of accretion disks in the presence of magnetically driven winds.
Reference
“The paper finds that the disk lifetime decreases as the dimensionless parameter ψ (wind strength) increases due to enhanced wind-driven mass loss.”