Integral Field Spectroscopy of Local Luminous Compact Blue Galaxies: NGC7673 a case study

starburst galaxies bluer than a typical SBc and with typical luminosities ≈ L*, which are undergoing a major burst of star formation. LCBGs are the closest counterparts to the large population of starburst galaxies observed at high redshift, including Lyman-break galaxies at z≈2. However, because LCBGs are very rare in the nearby Universe, their properties are still largely unknown. We have selected a representa-tive sample of LCBGs from the SDSS and UCM databases which, although small, provides an excellent reference for comparison with current and future surveys of similar starbursts at high-z. We are carrying out a 3D optical and radio spectroscopic study of this LCBG sample, including spatially resolved maps of kinematics, ex-tinction, SFR and metallicity. This will allow us to characterize their star formation history and mass assembly, and the role of mergers and supernova galactic winds. Here we show our results of this comprehensive multiwavelength study for NGC 7673, a prototypical LCBG in the nearby Universe. 1 Sample Selection and Observations LCBGs are selected from the SDSS and UCM databases according to observa-tional criteria that ensure that LCBGs we observe locally are analogous to those observed in deep images of distant galaxy populations: MB<-18.5, and SBe<21 mag arcsec−1, and B-V<0.6 mag. These galaxies (sample of 40 galaxies) were ob-served with PPAK, an optical integral field unit at the 3.5m Telescope of CAHA, which provides both good spatial and spectral resolution(we use two spectral con-figurations 300 lines/mm and 1200 lines/mm. In concert with data from other wave-lengths, these data allows us to comprehensively study the history of star formation and the mass assembly process in these galaxies