| Abstract: | The identification of the sources of reionisation of the Universe is one of the major goals of JWST. Dwarf galaxies in the epoch of reionisation, with their abundance and high specific star formation rates are thought of as ideal source of reionising photons. The low gravitational potential of dwarf galaxies could also facilitate the escape of these ionising photons to the inter-galactic medium and thus reionising the IGM around them. However, such galaxies prove to be difficult objects to study given their faintness even with ultra-deep surveys with powerful space telescopes. In the CANUCS survey, we harness the magnifying power of the galaxy clusters as gravitational lenses along with JWST to provide a magnified view of the early Universe. In this talk I will present the properties of dwarf galaxies (55. I will present their production efficiency of ionising photons, star formation histories and gas kinematics to understand what Lyman alpha emitters can tell us about the timeline and morphology of reionisation and to answer the question if dwarf galaxies can reionise the universe. |
