Siegel der Universität

Universität zu Köln
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Mathematisch-Naturwissenschaftliche Fakultät
Fachgruppe Physik

I. Physikalisches Institut

Massive Star Formation in its earliest stages: The massive young cluster G333.6-0.2

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Betreuer: Prof. Andreas Eckart, Raum 205, 470-3546

O/B type stars evolve within less than 100,000 years toward the main sequence and disperse their natal cloud by their intense radiation and winds. Therefore, observations of such massive stars in their earliest phases are extremely rare. The southern HII region G333.6-0.2 is an extremely young, embedded site of massive star formation. Adaptive optics imaging observations of G333.6-0.2 with NACO at the ESO VLT show it contains at least a dozen early B/late O stars. The KLF of the cluster appears flat at the bright end. The existing near infrared multi-wavelength imaging data on this object should be analysed in the framework of a diploma thesis. The structure of the cluster, its luminosity function and the colors of the young stars should be derived. Are there indications for mass segregation? Are there massive stars with infrared excess that indicates that they are still surrounded by some of the material from which they were born? The cluster should be compared with other young clusters. Follow-up observations may become available or can be applied for with the results of the analysis.