Fractal dimension and turbulence in Giant HII Regions
H. E. Caicedo-Ortiz, E. Santiago-Cort\'es, J. L\'opez-Bonilla, H., O. Casta\~neda
TL;DR
This study measures the fractal dimensions of two Giant HII Regions in NGC6822 using Hubble images, linking these measurements to turbulence levels, and finds evidence of low turbulence behavior.
Contribution
It introduces a method to quantify turbulence in HII regions through fractal dimension analysis based on high-resolution Hubble images.
Findings
Fractal dimensions indicate low turbulence in Hubble X and V.
Results suggest a correlation between fractal measures and turbulence levels.
The study provides a new approach to analyze turbulence in astrophysical regions.
Abstract
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.
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