Ana Duarte Cabral

 

The MALT90 survey of massive star-forming regions

James Jackson, Jill Rathborne, Sylvain Bontemps and the MALT90 consortium

 

With the current continuum submm surveys of the Galaxy, such as ATLASGAL, we are now able to detect most of the massive star formation (SF) sites in the Galaxy. As such, we now have the possibility of performing statistical studies of the triggers, physical properties, dynamics, and evolution of high-mass star-forming regions. This statistical knowledge is essential to understand the overall process of massive SF on a Galactic scale.

The MALT90 survey comes in this context as a molecular line survey of 3000 regions of massive SF in the Galactic plane, capable of providing the kinematical distances and the physical and chemical properties of clumps/cores at different evolutionary stages. Here I will highlight some of the products of MAL90ís 1st year of observations, including evidences for the chemical evolution of high mass protoclusters in high-density tracers and statistics on infall and outflow motions. Such a large multi-line survey will ultimately provide an important resource for targets to study with ALMA.