Title:A VLT VIMOS-IFU study of the cometary extremely metal-poor galaxies Tol 
65 and UM 461

Abstract:
The low heavy-element abundances, very blue colors and cometary/irregular 
morphology of extremely metal poor (XMP; 12+log(O/H)<7.6) HII/blue compact 
dwarf (HII/BCD) galaxies suggest that these galaxies are cosmologically young 
objects.  In this contribution we present preliminary results from the analysis 
of the cometary XMP HII/BCD galaxies Tol 65 and UM 461, based on VLT VIMOS-IFU 
spectroscopy. Among others, we investigate the spatial distribution of 
extinction c(Hb), ionization ratios, high-ionization emission lines, chemical 
abundances and kinematics of the warm interstellar medium in these galaxies.