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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



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ID: 693877.0, MPI für Astronomie / Publikationen_mpia
Age spread in galactic star forming region W3 Main
Authors:Bik, A.; Henning, Th.; Stolte, A.; Brandner, W.; Gouliermis, D. A.; Gennaro, M.; Pasquali, A.; Rochau, B.; Beuther, H.; Ageorges, N.; Seifert, W.; Wang, Y.; Kudryavtseva, N.
Language:English
Publisher:ASP
Date of Publication (YYYY-MM-DD):2013
Title of Proceedings:370 years of Astronomy in Utrecht
Start Page:367
End Page:370
Title of Series:ASP Conf. Ser.
Volume (in Series):470
Name of Conference/Meeting:370 years of Astronomy in Utrecht
Place of Conference/Meeting:Noordwijkerhout, The Netherlands
Review Status:Internal review
Audience:Experts Only
Abstract / Description:We present near-infrared JHKs imaging as well as K-band multi-object spectroscopy of the massive stellar content of W3 Main using LUCI at the LBT. We confirm 13 OB stars by their absorption line spectra in W3 Main and spectral types between O5V and B4V have been found. Three massive Young Stellar Objects are identified by their emission line spectra and near-infrared excess. From our spectrophotometric analysis of the massive stars and the nature of their surrounding HII regions we derive the evolutionary sequence of W3 Main and we find an age spread of 2-3 Myr.
Free Keywords:Astrophysics - Galaxy Astrophysics
Comment of the Author/Creator:Date: 2013, April, 2012
External Publication Status:published
Document Type:Conference-Paper
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL:http://cdsads.u-strasbg.fr/abs/2012arXiv1206.2139B [ID No:1]
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