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Caractériser la formation d'étoiles obscurcie à z ~ 2 dans l'Univers

Abstract : A non-negligible fraction of the star formation across cosmic time occurred within dust-enshrouded environment. One question of the main interest is then do we really know the exact amount of star formation activity. Indeed, this amount could be strongly biased by the effect of dust extinction.This features the context of the work I will discuss here.First of all, I focused my work on determining the number of luminous star-forming galaxies at 1.5 1mJy) OFIR sources present fainter 100/24 and 160/24 colors than the rest of the 24μm-selected sources. Their luminosity might then come from a strong AGN activity. The forthcoming facilities that will operate at long wavelengths (e.g., JWST, AKMA, SCUBA-2, etc.) will allow a better understanding of the link between the AGN activity and the star-forming one, up to high redshifts.
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Submitted on : Friday, January 27, 2012 - 3:49:18 PM
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  • HAL Id : tel-00663803, version 1



Laurie Riguccini Riggucini. Caractériser la formation d'étoiles obscurcie à z ~ 2 dans l'Univers. Autre. Université Paris Sud - Paris XI, 2011. Français. ⟨NNT : 2011PA112186⟩. ⟨tel-00663803⟩



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