Magnetohydrodynamic (MHD) wave activity is ubiquitous in the solar atmosphere. MHD seismology aims to determine difficult to measure physical parameters in solar atmospheric magnetic and plasma structures by a combination of observed and theoretical properties of MHD waves and oscillations. This technique, similar to seismology or helio-seismology

We present an analysis of near-IR images, obtained with the instrument PANIC at the Baade telescope (Las Campanas), of the star-forming regions associated with the sources IRAS 12272-6240 and IRAS 17149-3916, selected from the southern sky survey of sub-mm cores of Beltran et al. (2006). We identify two young clusters associated with each one of

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