Fractal dimension and turbulence in Giant HII 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.

arXiv comment5 pages, 4 figures. Correction table includes data on fractal dimension values

References in corpus (4)

• Scaling laws of solar and stellar flares
• Chemical Composition of Two H II Regions in NGC 6822 Based on VLT Spectroscopy
• The Fractal Distribution of HII Regions in Disk Galaxies
• Fractal Structure of Molecular Clouds

Cited by in corpus (3)

• The 3D morphology of open clusters in the solar neighborhood III: Fractal dimension
• Virgo Filaments VI: H$\alpha$ clumps in the filaments around the Virgo galaxy cluster
• Finite-size scaling properties of classical random walk on various two-dimensional lattices