WISDOM: Cloud-scale Molecular Gas Properties of the Lenticular Galaxy NGC1574

Understanding how giant molecular cloud (GMC) properties vary as a function of galaxy type and high-mass star formation provides crucial insights into galaxy evolution. To probe morphological quenching, the WISDOM project expands spatially-resolved studies to early-type galaxies and bulges. Here, I present the results of Atacama Large Millimeter/submillimeter Array 12CO(J=2-1) observations of the nearby lenticular galaxy NGC1574 at ~10 pc resolution. These reveal a molecular gas disc extending to a radius of only ~100 pc. This disc is very smooth and symmetric, and there are very few cloud-like structures at the usual cloud spatial scales (~50 pc), although some emerge at smaller scales (~10 pc), whose properties and gravitational boundedness can be accurately measured. We argue that this is due to strong shear in the galaxy's nucleus, and speculate on the link to star-formation regulation.