Fractal dimension and turbulence in Giant HII Regions

H. E. Caicedo-Ortiz, E. Santiago-Cortés, J. López-Bonilla, H. O. Castañeda

Published 2015-01-20Version 1

We have measured the fractal dimensions of the Giant HII Regions Hubble X and Hubble V in NGC6822 using images obtained with the Hubble's Wide Field Planetary Camera 2 (WFPC2). These measures are associated with the turbulence observed in these regions, which is quantified through the velocity dispersion of emission lines in the visible. Our results suggest low turbulence behaviour.