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Structure of the Milky Way and the distribution of young stellar clusters

Published online by Cambridge University Press:  01 December 2006

Maria Messineo ,
Karl M. Menten ,
Harm J. Habing ,
Monika Petr-Gotzens  and
Frédéric Schuller
Maria Messineo
Affiliation:
ESO, Garching, Germany email: mmessine@eso.org
Karl M. Menten
Affiliation:
MPIfR, Bonn, Germany
Harm J. Habing
Affiliation:
Leiden Observatory, The Netherlands
Monika Petr-Gotzens
Affiliation:
ESO, Garching, Germany email: mmessine@eso.org
Frédéric Schuller
Affiliation:
MPIfR, Bonn, Germany
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Abstract

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We present infrared observations with the integral field spectrometer SINFONI on the ESO-VLT (Very Large Telescope) Yepun of obscured stellar clusters in HII regions. The classification in spectral subclasses of the detected early type stars together with a determination of the interstellar extinction and the stellar apparent magnitudes enable us to obtain spectrophotometric distances, which are independent and complementary to kinematic distances and free from the ambiguity inherent to the determination of the latter. This study is part of a larger project, investigating the spatial distribution of Galactic Hii regions. Our primary aim is obtaining a more complete and less biased picture of the Milky Way's spiral structure.

Keywords

(Galaxy:) open clusters and associations: general Galaxy: stellar content
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S241: Stellar Populations as Building Blocks of Galaxies , December 2006 , pp. 254 - 255
Copyright
Copyright © International Astronomical Union 2007

References

Bica, E., Dutra, C. M. & Barbuy, B. 2003 A&A 397 177Google Scholar
Messineo, M., Petr–Gotzens, M. G., Schuller, F., Menten, K.M., Habing, H.J., Kissler-Patig, M., Modigliani, A., & Reunanen, J. 2006, submitted to A&AGoogle Scholar
Russeil, D. 2003 A&A 397 133Google Scholar