Prof. Carignan is the SKA SARChI chair at the University of Cape Town. He is also Emeritus professor at the Université de Montréal and adjunct professor at the Université de Ouagadougou, in Burkina Faso.
His main research interest is the study of dark matter in spiral and dwarf irregular galaxies using HI synthesis and optical Fabry-Perot interferometry observations. This allows, by constructing mass models, to study the density distribution of dark matter in galaxies.
Recently, he has been working on HI observations obtained with KAT-7, the precursor of MeerKAT, the South African SKA pathfinder. He has also been involved in the development of large EMCCD detectors for photon counting applications.