Physical properties of the star-forming regions in the local Luminous Compact Blue Galaxy ( LCBG ) NGC 7673 are studied in detail using 3D spectroscopic data taken with the PPAK integral field unit at the 3.5-m telescope in the Centro Astronómico Hispano Alemán .
We derive integrated and spatially resolved properties such as extinction , star formation rate ( SFR ) and metallicity for this galaxy .
Our data show an extinction map with maximum values located at the position of the main clumps of star formation showing small spatial variations ( E ( B - V ) _ { t } = 0.12 - 0.21 mag ) .
We derive a H \alpha -based SFR for this galaxy of 6.2 \pm 0.8 M _ { \odot } / yr in agreement with the SFR derived from infrared and radio continuum fluxes .
The star formation is located mainly in clumps A , B , C and F. Different properties measured in clump B makes this region peculiar .
We find the highest H \alpha luminosity with a SFR surface density of 0.5 M _ { \odot } yr ^ { -1 } kpc ^ { -2 } in this clump .
In our previous work ( ) , the kinematic analysis for this galaxy shows an asymmetrical ionized gas velocity field with a kinematic decoupled component located at the position of clump B .
This region shows the absence of strong absorption features and the presence of a Wolf-Rayet stellar population indicating this is a young burst of massive stars .
Furthermore , we estimate a gas metallicity of 12 + log ( O / H ) = 8.20 \pm 0.15 ( 0.32 solar ) for the integrated galaxy using the R23 index .
The values derived for the different clumps with this method show small metallicity variations in this galaxy , with values in the range 8.12 ( for clump A ) - 8.23 ( for clump B ) for 12 + log ( O / H ) .
The analysis of the emission line ratios discards the presence of any AGN activity or shocks as the ionization source in this galaxy .
Between the possible mechanisms to explain the starburst activity in this galaxy , our 3D spectroscopic data support the scenario of an on-going interaction with the possibility for clump B to be the dwarf satellite galaxy .