Alfvén waves in the context of solar-like star formation: accretion columns and disks

Details Alfvén waves in the context of solar-like star formation: accretion columns and disks Alfvén waves in the context of solar-like star formation: accretion columns and disks

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003ssrv..107..383v&link_type=abstract

Space Science Reviews, v. 107, Issue 1, p. 383-386 (2003).

Physics

Accretion Disks, Stars: Pre-Main-Sequence, Turbulence, Waves

Scientific paper

In this work we examine the damping of Alfvén waves as a source of plasma heating in disks and magnetic funnels of young solar like stars, the T Tauri stars. We apply four different damping mechanisms in this study: viscous-resistive, collisional, nonlinear and turbulent, exploring a wide range of wave frequencies, from 10-5Ωi to 10-1Ωi (where Ωi is the ion-cyclotron frequency). The results show that Alfvénic heating can increase the ionization rate of accretion disks and elevate the temperature of magnetic funnels of T Tauri stars opening possibilities to explain some observational features of these objects.

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