Line Profiles and Widths arising from MHD wave propagation in molecular clouds

Session 6 - The ISM & Molecular Clouds.
Display session, Monday, June 09
South Main Hall,

[6.13] Line Profiles and Widths arising from MHD wave propagation in molecular clouds

J. Jijina (Harvard-Smithsonian CfA; U. Michigan), F. C. Adams (U. Michigan), P. C. Myers (Harvard-Smithsonian CfA)

Magnetohydrodynamic (MHD) waves are believed to be the leading candidates for molecular cloud support. We systematically explore the propagation of the various families of MHD waves through self-gravitating, magnetic media at different wavelengths and for varying magnetic field configurations. We use the velocity fields thus derived to obtain line profiles and widths in the optically thin limit. By direct comparison with observational results we attempt to constrain parameter space - alfv\acute en speeds, field strengths, propagation wavelengths, etc., and estimate the relative contributions of the different modes.

Program listing for Monday