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A starred walk in the Inner Galaxy

by Maria Messineo (Max-Planck-Institut für Radioastronomie, Bonn, D)

Jun 06, 2013 from 02:00 PM to 04:30 PM

Where Seminars' room, floor -1, via Ranzani 1

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Massive stars are mostly found in massive clusters, and in proximity of giant HII regions. Thereby, their location is a successful way to select some interesting massive clusters, a natural laboratory for studying stellar evolution, and to map the large scale structure of the Milky Way. The numbers and spatial distributions of massive stars are quite uncertain, mainly due to our poor knowledge on distances and dust extinction. I will present a small review on the current census of massive stars/and clusters in the Milky Way, show you some of the work I have been doing on clusters, and discuss a set of new criteria for finding them. Available new photometric data from large surveys of the Galactic plane (e.g. 2MASS, UKIDSS, VISTA, MSX, and GLIMPSE) allow for new types of searches. These stellar color criteria are very suitable for constructing a 3D view of the inner young stellar population of the Milky Way. On a very large scale, such stars represent a useful calibraton for resolved stars that ELT will observe in far distant galaxies.

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