Identification of Large Equivalent Width Dusty Galaxies at 4 $<$ z $<$ 6 from Sub-mm Colours

Understand

Infrared (IR), sub-millimetre (sub-mm) and millimetre (mm) databases contain a huge quantity of high quality data.

• However, a large part of these data are photometric, and are thought not to be useful to derive a quantitative information on the nebular emission of galaxies.
• The aim of this project is first to identify galaxies at z > 4-6, and in the epoch of reionization from their sub-mm colours.
• We also aim at showing that the colours can be used to try and derive physical constraints from photometric bands, when accounting for the contribution from the IR fine structure lines to these photometric bands.