A multifrequency study of the active star forming region NGC 6357

C. CAPPA, R. BARBA, E.M. ARNAL, N. DURONEA, E. FERNANDEZ-LAJUS, J. VASQUEZ

Praga, Rep. checa

Simposio; Simposio 237: Triggered star formation in a turbulent ISM; 2006

IAU

To investigate the interaction of the massive stars with the gas and dust in the active star forming region NGC\,6357, located in theSaggittarius spiral arm at a distance of 1.7-2.6 kpc (Massey et al.2001), we analyzed the distribution of the neutral and ionized gas, and that of the dust, based on H$\alpha$, [O{\sc iii}] and [S{\sc ii}] images obtained with the Curtis-Schmidt telescope at CTIO, radio continuum observations at 1.465 MHz obtained with the Very Large Array (NRAO) in the DnC configuration (synthesized beam = 38''), H{\sc i} data from the Parkes survey (angular resolution = 15'), CO(1-0) observations obtained with the Nanten radiotelescope at Las Campanas Observatory (angular resolution = 2.7'), and IR images in the four MSX bands (angular resolution = 18.3'').