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29 March 2024
 
  » arxiv » astro-ph/0010459

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Can dusty Lyman break galaxies produce the submillimeter counts and background? Lessons from lensed Lyman break galaxies
Paul P. van der Werf ; Kirsten Kraiberg Knudsen ; Ivo Labbe ; Marijn Franx ;
Date 23 Oct 2000
Subject astro-ph
AbstractCan the submillimeter counts and background be produced by applying a locally derived extinction correction to the population of Lyman break galaxies? We investigate the submillimeter emission of two strongly lensed Lyman break galaxies (MS1512+36-cB58 and MS1358+62-G1) and find that the procedure that is used to predict the submillimeter emission of the Lyman break galaxy population overpredicts the observed 850micron fluxes by up to a factor of 14. This result calls for caution in applying local correlations to distant galaxies. It also shows that large extinction corrections on Lyman break galaxies should be viewed with skepticism. It is concluded that the Lyman break galaxies may contribute to the submillimeter background at the 25 to 50% level. The brighter submillimeter galaxies making up the rest of the background are either not detected in optical surveys, or if they are detected, their submillimeter emission cannot be reliably estimated from their rest-frame ultraviolet properties.
Source arXiv, astro-ph/0010459
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