Tuesday

Spectroscopically confirmed luminous Lyman-alpha (Lya) emitters at z>6.5 reside in ionised bubbles that allow their Lya photons to escape the resonance frequency of intergalactic neutral gas. However, is it the "escape", or the "production" of Lya photons that is special in these extreme line-emitting sources compared to the numerous galaxies for which Lya is undetected? Are they all multiple mergers? What are their metallicities and stellar populations? Do they contain AGN? I will present the latest results that allow us to resolve luminous Lyman-alpha emitters within the epoch of re-ionisation with HST (rest-frame UV), MUSE (Lyman-alpha) and ALMA ([CII] and dust continuum). These sources show a wide diversity of [CII] clumps and luminosities, different spectroscopically confirmed components and likely very low metallicities. All these sources are already providing us a glimpse of what JWST may be able to unveil, along with showing us how important IFU observations of sources within the epoch of re-ionisation will be.