| Precise if your presentation is oral or a poster : | oral |
| Title of your presentation : | Imaging Lyman Continuum Emission from Galaxies at z~3 |
| Abstract |
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Determining the contribution of galaxies to the reionization of the universe is a fundamental goal for studies of the intergalactic medium (IGM), and galaxy formation and evolution. A direct measurement of ionizing radiation escaping from galaxies is not possible at the epoch of reionization, due to the high optical depth of the IGM, and therefore observations of this process at slightly lower redshift are crucial for understanding what happens at z~6. We have unambiguously detected Lyman continuum emission in the spectra of individual star-forming galaxies at z~3. We now present narrow-band images of these targets that probe the same rest-frame Lyman continuum wavelength region, just below 912 AA. These new images illustrate some intriguing differences in the spatial distributions of ionizing and non-ionizing radiation, and Lyman-alpha emission, and offer important clues as to the factors modulating the escape of Lyman continuum radiation from galaxies. |
