ESO/VLT ISAAC and NACO imaging and spectroscopy of compact HII regions in the Magellanic clouds

Details ESO/VLT ISAAC and NACO imaging and spectroscopy of compact HII regions in the Magellanic clouds ESO/VLT ISAAC and NACO imaging and spectroscopy of compact HII regions in the Magellanic clouds

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005sf2a.conf..401t&link_type=abstract

SF2A-2005: Semaine de l'Astrophysique Francaise, meeting held in Strasbourg, France, June 27 - July 1, 2005, Edited by F. Casoli

Astronomy and Astrophysics

Astrophysics

3

Scientific paper

We present observations and preliminary conclusions on HEBs (High-Excitation Blobs) in the Magellanic clouds (MCs). HEBs are compact HII regions that constitute a rare class of ionized nebulae in the MCs. They are considered to be the final stage of ultra compact (UC) HII regions. Their main characteristics are: high excitation, small size (≈2 pc), high density, and large extinction compared to typical MCs HII regions. These objects are tightly linked to the early stages of massive star formation, when the stars disrupt their natal molecular clouds. Such a study yields important informations for a better understanding of massive stars formation.

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