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Etoiles massives les plus jeunes des Nuages de Magellan : Les HEBs et leur environnement

Abstract : This thesis is devoted to the study of «High Excitation Blobs»
(HEBs). This class of object corresponds to a characteristic phase of massive star formation, which remains uncompletely explained. HEBs are compact HII regions, observed in visible wavelength in the
Magellanical Clouds. Using high angular resolution observations (HST and restored ground-based data), I have determined what stellar population are associated with blobs. NIR observations (VLT) allowed to probe the very heterogeneous environment of these
objects. Moreover, a spectroscopic study led me to the definition of a new category of objects : Low Excitation Blobs (LEBs). The whole dataset allowed a thorough study of some of the physical properties of blobs and highlights the interest of studying them with future instruments (ALMA, JWST, etc.).
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Contributor : Frédéric Meynadier <>
Submitted on : Monday, March 5, 2007 - 5:08:29 PM
Last modification on : Thursday, December 10, 2020 - 12:39:01 PM
Long-term archiving on: : Monday, October 22, 2012 - 12:05:10 PM


  • HAL Id : tel-00010036, version 2


Frédéric Meynadier. Etoiles massives les plus jeunes des Nuages de Magellan : Les HEBs et leur environnement. Astrophysique [astro-ph]. Université Pierre et Marie Curie - Paris VI, 2005. Français. ⟨tel-00010036v2⟩



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