Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-09-19
Astronomy and Astrophysics
Astrophysics
Uses AAS aasms4.sty macros. Accepted for publication in ApJ
Scientific paper
10.1086/306802
We present the results of a velocity correlation study of the high latitude cloud MBM16 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.
LaRosa Ted N.
Magnani Loris
Shore Steven N.
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