1998/09/19 by T. N. LaRosa, T. N. Larosa, S. N. Shore +2 · 1 citation
Chemical Engineering · Engineering · Physics and Astronomy · #Advanced Combustion Engine Technologies #Astrophysics #Astrophysics and Star Formation Studies #Classical mechanics #Cloud computing #Combustion and flame dynamics #Dissipation #Galaxy #Interstellar medium #Kinetic energy #Materials science #Mechanics #Molecular cloud #Physics #Shear (geology) #Shear flow #Star formation #Stars #Thermodynamics #Turbulence #Turbulence kinetic energy #astro-ph
paper · pdf · doi:10.1086/306802
Uses AAS aasms4.sty macros. Accepted for publication in ApJ
arxiv created 1998/09/19 · openalex publication_date 1999/02/20 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
We present the results of a velocity correlation study of the high-latitude cloud MBM 16 using a fully sampled 12 CO map, supplemented by new 13 CO data. We find a correlation length of 0.4 pc. This is similar in size to the formaldehyde clumps described in our previous study. We associate this correlated motion with coherent structures within the turbulent flow. Such structures are generated by free shear flows. Their presence in this non-star-forming cloud indicates that kinetic energy is being supplied to the internal turbulence by an external shear flow. Such large-scale driving over long times is a possible solution to the dissipation problem for molecular cloud turbulence.