Searching high-z Lyalpha emitters
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en
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Ce document a été publié dans
Proceedings of the SPIE, Proceedings of the SPIE, Discoveries and Research Prospects from 6- to 10-Meter-Class Telescopes II, 2002-08-22, Waikoloa, Hawaii. 2003, vol. 4834, p. 345-352
Résumé en anglais
High-z galaxies beyond redshift ~ 4 are essentially detected from ground based observations through their Lyalpha emission. The anticipated Lyalpha flux of galaxies at redshifts ~ 6 and beyond is a few times 0.1 10<SUP>-17 ...Lire la suite >
High-z galaxies beyond redshift ~ 4 are essentially detected from ground based observations through their Lyalpha emission. The anticipated Lyalpha flux of galaxies at redshifts ~ 6 and beyond is a few times 0.1 10<SUP>-17 </SUP>ergs.s<SUP>-1</SUP>.cm<SUP>-2 </SUP>and its detection requires observations in low background conditions, when the observing wavelength is pushed into the near IR domain. We have carried out observations on 4-8 m telescopes to search for high z galaxies at 920 nm, 1060 and 1187 nm, resorting to various techniques: Narrow Band (NB) imaging and multi-slit windows. Observations, data reduction and preliminary results are described.< Réduire
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