Tuesday

Submillimetre galaxies (SMGs) are host to some of the most extreme star formation in the Universe. We have undertaken an ALMA survey of 720 submillimetre sources in the Ultra Deep Survey (UDS), resolving 680 SMGs above a flux limit of 1mJy: a factor of 10 larger than previous surveys. SMGs are predicted to be the progenitors of today’s massive elliptical population and therefore provide unique constraints on galaxy evolution. In particular z \gt 4 SMGs may help to explain the formation of z=2-4 compact quiescent galaxies. I will present the first exciting results of our ALMA survey of the largest sample of SMGs to date, including multiplicity measurements, multiwavelength properties of SMGs and our [CII] emission line search in SMGs at z=4.4-4.6.