Vortragsdetails

Mittwoch, 11. November 2009 - 15:15

Arjan Bik:

"A spectroscopic census of the stellar content of high-mass star-forming regions"

Zusammenfassung. The formation and early evolution of high-mass stars happens in clustered and highly complex environments, where the forming stars and the molecular cloud are mutually interacting. To study the stellar population of high-mass star-forming regions, we have started a program aiming at a spectroscopic classification of all the high- and intermediate mass cluster members of a well selected sample of 10 clusters as well as to study the interaction between the stars and their environment. I will present the first results of this survey obtained with the integral field spectrograph SINFONI at the VLT. Supporting multi-wavelength data (mid-infrared, sub-mm and radio) are added to obtain a complete picture of the regions. The first results show that properties like distance and ages of the clusters can be derived. Additonally, the multi-wavelength datasets of the regions and their environment result in a detailed assessment of the formation history of the targetted regions.