Evolved massive stars in W33 and in GMC G23.3 − 0.3

We conducted infrared spectroscopic observations of bright stars in the direction of the molecular clouds W33 and GMC G23.3 − 0.3. We compared stellar spectro-photometric distances with parallactic distances to these regions, and we were able to assess the association of the detected massive stars w...

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Bibliographic Details
Published in:Proceedings of the International Astronomical Union 2015-08, Vol.12 (S316), p.167-168
Main Authors: Messineo, M., Clark, J. S., Figer, D. F., Menten, K. M., Kudritzki, R.-P., Najarro, F., Rich, R. M., Ivanov, V. D., Valenti, E., Trombley, C., Chen, C.-H. R., Davies, B., MacKenty, J. W.
Format: Article
Language:English
Subjects:
Astrophysics
Contributed Papers
Spectrum analysis
Star & galaxy formation
Stars & galaxies
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Summary:We conducted infrared spectroscopic observations of bright stars in the direction of the molecular clouds W33 and GMC G23.3 − 0.3. We compared stellar spectro-photometric distances with parallactic distances to these regions, and we were able to assess the association of the detected massive stars with these molecular complexes. The spatial and temporal distributions of the detected stars enabled us to locate sources of ionizing radiation and to gather precise information on the star formation history of these clouds. The studied clouds present different distributions of massive stars.
ISSN:1743-9213
1743-9221
DOI:10.1017/S1743921315008947